diff --git a/.changeset/const-tags.md b/.changeset/const-tags.md
deleted file mode 100644
index 82765c5038..0000000000
--- a/.changeset/const-tags.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'svelte': patch
----
-
-fix: invalidate `@const` tags based on visible references in legacy mode
diff --git a/.changeset/evil-chicken-attend.md b/.changeset/evil-chicken-attend.md
deleted file mode 100644
index f89e7e17f3..0000000000
--- a/.changeset/evil-chicken-attend.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'svelte': patch
----
-
-fix: disallow `--` in `idPrefix`
diff --git a/.changeset/great-toes-behave.md b/.changeset/great-toes-behave.md
deleted file mode 100644
index 26e36f70f1..0000000000
--- a/.changeset/great-toes-behave.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'svelte': patch
----
-
-fix: correct types for `ontoggle` on <details> elements
diff --git a/.changeset/orange-geckos-rest.md b/.changeset/orange-geckos-rest.md
deleted file mode 100644
index 5717c249b6..0000000000
--- a/.changeset/orange-geckos-rest.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'svelte': patch
----
-
-fix: don't override `$destroy/set/on` instance methods in dev mode
diff --git a/.changeset/poor-tips-send.md b/.changeset/poor-tips-send.md
deleted file mode 100644
index beb0329705..0000000000
--- a/.changeset/poor-tips-send.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'svelte': patch
----
-
-fix: never set derived.v inside fork
diff --git a/.changeset/silent-rings-yell.md b/.changeset/silent-rings-yell.md
deleted file mode 100644
index 0b417103f7..0000000000
--- a/.changeset/silent-rings-yell.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'svelte': patch
----
-
-fix: don't reset status of uninitialized deriveds
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e940252892..586c6fe6ae 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -43,7 +43,7 @@ The maintainers meet on the final Saturday of each month. While these meetings a
 
 ### Prioritization
 
-We do our best to review PRs and RFCs as they are sent, but it is difficult to keep up. We welcome help in reviewing PRs, RFCs, and issues. If an item aligns with the current priority on our [roadmap](https://svelte.dev/roadmap), it is more likely to be reviewed quickly. PRs to the most important and active ones repositories get reviewed more quickly while PRs to smaller inactive repos may sit for a bit before we periodically come by and review the pending PRs in a batch.
+We do our best to review PRs and RFCs as they are sent, but it is difficult to keep up. We welcome help in reviewing PRs, RFCs, and issues. If an item aligns with the current priority on our [roadmap](https://svelte.dev/roadmap), it is more likely to be reviewed quickly. PRs to the most important and active repositories get reviewed more quickly while PRs to smaller inactive repos may sit for a bit before we periodically come by and review the pending PRs in a batch.
 
 ## Bugs
 
diff --git a/documentation/docs/02-runes/02-$state.md b/documentation/docs/02-runes/02-$state.md
index d763b6578f..b90c71366a 100644
--- a/documentation/docs/02-runes/02-$state.md
+++ b/documentation/docs/02-runes/02-$state.md
@@ -167,6 +167,8 @@ To take a static snapshot of a deeply reactive `$state` proxy, use `$state.snaps
 
 This is handy when you want to pass some state to an external library or API that doesn't expect a proxy, such as `structuredClone`.
 
+If a value has a `toJSON` method, the snapshot will clone the value returned from `toJSON` instead of the original object.
+
 ## `$state.eager`
 
 When state changes, it may not be reflected in the UI immediately if it is used by an `await` expression, because [updates are synchronized](await-expressions#Synchronized-updates).
diff --git a/documentation/docs/03-template-syntax/12-bind.md b/documentation/docs/03-template-syntax/12-bind.md
index e8164149db..b93f207e71 100644
--- a/documentation/docs/03-template-syntax/12-bind.md
+++ b/documentation/docs/03-template-syntax/12-bind.md
@@ -241,7 +241,7 @@ When the value of an `<option>` matches its text content, the attribute can be o
 </select>
 ```
 
-You can give the `<select>` a default value by adding a `selected` attribute to the`<option>` (or options, in the case of `<select multiple>`) that should be initially selected. If the `<select>` is part of a form, it will revert to that selection when the form is reset. Note that for the initial render the value of the binding takes precedence if it's not `undefined`.
+You can give the `<select>` a default value by adding a `selected` attribute to the `<option>` (or options, in the case of `<select multiple>`) that should be initially selected. If the `<select>` is part of a form, it will revert to that selection when the form is reset. Note that for the initial render the value of the binding takes precedence if it's not `undefined`.
 
 ```svelte
 <select bind:value={selected}>
diff --git a/documentation/docs/06-runtime/02-context.md b/documentation/docs/06-runtime/02-context.md
index aee51c9a78..439272df8f 100644
--- a/documentation/docs/06-runtime/02-context.md
+++ b/documentation/docs/06-runtime/02-context.md
@@ -163,6 +163,8 @@ export const [getCounter, setCounter] = createContext<Counter>();
 
 Svelte will warn you if you get it wrong.
 
+Similarly, to pass primitive values through context, use functions as described in [Passing state into functions]($state#Passing-state-into-functions).
+
 ## Component testing
 
 When writing [component tests](testing#Unit-and-component-tests-with-Vitest-Component-testing), it can be useful to create a wrapper component that sets the context in order to check the behaviour of a component that uses it. As of version 5.49, you can do this sort of thing:
diff --git a/documentation/docs/07-misc/02-testing.md b/documentation/docs/07-misc/02-testing.md
index c1bc69c1c2..0ad82a19b5 100644
--- a/documentation/docs/07-misc/02-testing.md
+++ b/documentation/docs/07-misc/02-testing.md
@@ -38,6 +38,21 @@ You can now write unit tests for code inside your `.js/.ts` files:
 
 ```js
 /// file: multiplier.svelte.test.js
+// @filename: multiplier.svelte.ts
+export function multiplier(initial: number, k: number) {
+	let count = $state(initial);
+
+	return {
+		get value() {
+			return count * k;
+		},
+		set: (c: number) => {
+			count = c;
+		}
+	};
+}
+// @filename: multiplier.svelte.test.js
+// ---cut---
 import { flushSync } from 'svelte';
 import { expect, test } from 'vitest';
 import { multiplier } from './multiplier.svelte.js';
@@ -80,6 +95,16 @@ Since Vitest processes your test files the same way as your source files, you ca
 
 ```js
 /// file: multiplier.svelte.test.js
+// @filename: multiplier.svelte.ts
+export function multiplier(getCount: () => number, k: number) {
+	return {
+		get value() {
+			return getCount() * k;
+		}
+	};
+}
+// @filename: multiplier.svelte.test.js
+// ---cut---
 import { flushSync } from 'svelte';
 import { expect, test } from 'vitest';
 import { multiplier } from './multiplier.svelte.js';
@@ -115,6 +140,10 @@ If the code being tested uses effects, you need to wrap the test inside `$effect
 
 ```js
 /// file: logger.svelte.test.js
+// @filename: logger.svelte.ts
+export function logger(fn: () => void) {}
+// @filename: logger.svelte.test.js
+// ---cut---
 import { flushSync } from 'svelte';
 import { expect, test } from 'vitest';
 import { logger } from './logger.svelte.js';
@@ -213,7 +242,7 @@ test('Component', () => {
 	expect(document.body.innerHTML).toBe('<button>0</button>');
 
 	// Click the button, then flush the changes so you can synchronously write expectations
-	document.body.querySelector('button').click();
+	document.body.querySelector('button')?.click();
 	flushSync();
 
 	expect(document.body.innerHTML).toBe('<button>1</button>');
@@ -226,6 +255,7 @@ test('Component', () => {
 While the process is very straightforward, it is also low level and somewhat brittle, as the precise structure of your component may change frequently. Tools like [@testing-library/svelte](https://testing-library.com/docs/svelte-testing-library/intro/) can help streamline your tests. The above test could be rewritten like this:
 
 ```js
+// @errors: 2339
 /// file: component.test.js
 import { render, screen } from '@testing-library/svelte';
 import userEvent from '@testing-library/user-event';
@@ -270,9 +300,9 @@ You can create stories for component variations and test interactions with the [
 		}
 	});
 </script>
- 
+
 <Story name="Empty Form" />
- 
+
 <Story
 	name="Filled Form"
 	play={async ({ args, canvas, userEvent }) => {
diff --git a/documentation/docs/98-reference/.generated/client-warnings.md b/documentation/docs/98-reference/.generated/client-warnings.md
index 7daf808d61..73c97c253c 100644
--- a/documentation/docs/98-reference/.generated/client-warnings.md
+++ b/documentation/docs/98-reference/.generated/client-warnings.md
@@ -134,6 +134,14 @@ When logging a [proxy](https://developer.mozilla.org/en-US/docs/Web/JavaScript/R
 
 The easiest way to log a value as it changes over time is to use the [`$inspect`](/docs/svelte/$inspect) rune. Alternatively, to log things on a one-off basis (for example, inside an event handler) you can use [`$state.snapshot`](/docs/svelte/$state#$state.snapshot) to take a snapshot of the current value.
 
+### derived_inert
+
+```
+Reading a derived belonging to a now-destroyed effect may result in stale values
+```
+
+A `$derived` value created inside an effect will stop updating when the effect is destroyed. You should create the `$derived` outside the effect, or inside an `$effect.root`.
+
 ### event_handler_invalid
 
 ```
diff --git a/packages/svelte/CHANGELOG.md b/packages/svelte/CHANGELOG.md
index 7ec69a7930..1f3f9d1149 100644
--- a/packages/svelte/CHANGELOG.md
+++ b/packages/svelte/CHANGELOG.md
@@ -1,5 +1,145 @@
 # svelte
 
+## 5.55.9
+
+### Patch Changes
+
+- fix: don't unset batch when calling `{#await ...}` promise ([#18243](https://github.com/sveltejs/svelte/pull/18243))
+
+- fix: promise-ify `{#await await ...}` expressions on the server and correctly hydrate them on the client ([#18243](https://github.com/sveltejs/svelte/pull/18243))
+
+- fix: deduplicate dependencies that are added outside the init/update cycle ([#18243](https://github.com/sveltejs/svelte/pull/18243))
+
+- fix: avoid false-positive batch invariant error ([#18246](https://github.com/sveltejs/svelte/pull/18246))
+
+- fix: inline primitive constants in attribute values during SSR ([#18232](https://github.com/sveltejs/svelte/pull/18232))
+
+## 5.55.8
+
+### Patch Changes
+
+- fix(print): handle `svelte:body` and fix keyframe percentage double-printing ([#18234](https://github.com/sveltejs/svelte/pull/18234))
+
+- fix: execute uninitialized derived even if it's destroyed ([#18228](https://github.com/sveltejs/svelte/pull/18228))
+
+- fix: use named symbols everywhere ([#18238](https://github.com/sveltejs/svelte/pull/18238))
+
+- fix: don't run teardown effects when deriveds are unfreezed ([#18227](https://github.com/sveltejs/svelte/pull/18227))
+
+- fix: unset context synchronously in `run` ([#18236](https://github.com/sveltejs/svelte/pull/18236))
+
+## 5.55.7
+
+### Patch Changes
+
+- fix: prevent XSS on `hydratable` from user contents ([`a16ebc67bbcf8f708360195687e1b2719463e1a4`](https://github.com/sveltejs/svelte/commit/a16ebc67bbcf8f708360195687e1b2719463e1a4))
+
+- chore: bump devalue ([#18219](https://github.com/sveltejs/svelte/pull/18219))
+
+- fix: disallow empty attribute names during SSR ([`547853e2406a2147ad7fb5ffeba95b01bd9642da`](https://github.com/sveltejs/svelte/commit/547853e2406a2147ad7fb5ffeba95b01bd9642da))
+
+- fix: harden regex ([`d2375e2ebcab5c88feb5652f1a9d621b8f06b259`](https://github.com/sveltejs/svelte/commit/d2375e2ebcab5c88feb5652f1a9d621b8f06b259))
+
+- fix: move Svelte runtime properties to symbols ([`e1cbbd96441e82c9eb8a23a2903c0d06d3cda991`](https://github.com/sveltejs/svelte/commit/e1cbbd96441e82c9eb8a23a2903c0d06d3cda991))
+
+## 5.55.6
+
+### Patch Changes
+
+- fix: leave stale promises to wait for a later resolution, instead of rejecting ([#18180](https://github.com/sveltejs/svelte/pull/18180))
+
+- fix: keep dependencies of `$state.eager/pending` ([#18218](https://github.com/sveltejs/svelte/pull/18218))
+
+- fix: reapply context after transforming error during SSR ([#18099](https://github.com/sveltejs/svelte/pull/18099))
+
+- fix: don't rebase just-created batches ([#18117](https://github.com/sveltejs/svelte/pull/18117))
+
+- chore: allow `null` for `pending` in typings ([#18201](https://github.com/sveltejs/svelte/pull/18201))
+
+- fix: flush eager effects in production ([#18107](https://github.com/sveltejs/svelte/pull/18107))
+
+- fix: rethrow error of failed iterable after calling `return()` ([#18169](https://github.com/sveltejs/svelte/pull/18169))
+
+- fix: account for proxified instance when updating `bind:this` ([#18147](https://github.com/sveltejs/svelte/pull/18147))
+
+- fix: ensure scheduled batch is flushed if not obsolete ([#18131](https://github.com/sveltejs/svelte/pull/18131))
+
+- fix: resolve stale deriveds with latest value ([#18167](https://github.com/sveltejs/svelte/pull/18167))
+
+- chore: remove unnecessary `increment_pending` calls ([#18183](https://github.com/sveltejs/svelte/pull/18183))
+
+- fix: correctly compile component member expressions for SSR ([#18192](https://github.com/sveltejs/svelte/pull/18192))
+
+- fix: reset `source.updated` stack traces after `flush` ([#18196](https://github.com/sveltejs/svelte/pull/18196))
+
+- fix: replacing async 'blocking' strategy with 'merging' ([#18205](https://github.com/sveltejs/svelte/pull/18205))
+
+- fix: allow `@debug` tags to reference awaited variables ([#18138](https://github.com/sveltejs/svelte/pull/18138))
+
+- fix: re-run fallback props if dependencies update ([#18146](https://github.com/sveltejs/svelte/pull/18146))
+
+- fix: abort running obsolete async branches ([#18118](https://github.com/sveltejs/svelte/pull/18118))
+
+- fix: ignore comments when reading CSS values ([#18153](https://github.com/sveltejs/svelte/pull/18153))
+
+- fix: wrap `Promise.all` in `save` during SSR ([#18178](https://github.com/sveltejs/svelte/pull/18178))
+
+- fix: ignore false-positive errors of `$inspect` dependencies ([#18106](https://github.com/sveltejs/svelte/pull/18106))
+
+## 5.55.5
+
+### Patch Changes
+
+- fix: don't mark deriveds while an effect is updating ([#18124](https://github.com/sveltejs/svelte/pull/18124))
+
+- fix: do not dispatch introstart event with animation of animate directive ([#18122](https://github.com/sveltejs/svelte/pull/18122))
+
+## 5.55.4
+
+### Patch Changes
+
+- fix: never mark a child effect root as inert ([#18111](https://github.com/sveltejs/svelte/pull/18111))
+
+- fix: reset context after waiting on blockers of `@const` expressions ([#18100](https://github.com/sveltejs/svelte/pull/18100))
+
+- fix: keep flushing new eager effects ([#18102](https://github.com/sveltejs/svelte/pull/18102))
+
+## 5.55.3
+
+### Patch Changes
+
+- fix: ensure proper HMR updates for dynamic components ([#18079](https://github.com/sveltejs/svelte/pull/18079))
+
+- fix: correctly calculate `@const` blockers ([#18039](https://github.com/sveltejs/svelte/pull/18039))
+
+- fix: freeze deriveds once their containing effects are destroyed ([#17921](https://github.com/sveltejs/svelte/pull/17921))
+
+- fix: defer error boundary rendering in forks ([#18076](https://github.com/sveltejs/svelte/pull/18076))
+
+- fix: avoid false positives for reactivity loss warning ([#18088](https://github.com/sveltejs/svelte/pull/18088))
+
+## 5.55.2
+
+### Patch Changes
+
+- fix: invalidate `@const` tags based on visible references in legacy mode ([#18041](https://github.com/sveltejs/svelte/pull/18041))
+
+- fix: handle parens in template expressions more robustly ([#18075](https://github.com/sveltejs/svelte/pull/18075))
+
+- fix: disallow `--` in `idPrefix` ([#18038](https://github.com/sveltejs/svelte/pull/18038))
+
+- fix: correct types for `ontoggle` on `<details>` elements ([#18063](https://github.com/sveltejs/svelte/pull/18063))
+
+- fix: don't override `$destroy/set/on` instance methods in dev mode ([#18034](https://github.com/sveltejs/svelte/pull/18034))
+
+- fix: unskip branches of earlier batches after commit ([#18048](https://github.com/sveltejs/svelte/pull/18048))
+
+- fix: never set derived.v inside fork ([#18037](https://github.com/sveltejs/svelte/pull/18037))
+
+- fix: skip rebase logic in non-async mode ([#18040](https://github.com/sveltejs/svelte/pull/18040))
+
+- fix: don't reset status of uninitialized deriveds ([#18054](https://github.com/sveltejs/svelte/pull/18054))
+
 ## 5.55.1
 
 ### Patch Changes
diff --git a/packages/svelte/elements.d.ts b/packages/svelte/elements.d.ts
index f18b7dea98..daa40635b6 100644
--- a/packages/svelte/elements.d.ts
+++ b/packages/svelte/elements.d.ts
@@ -2067,9 +2067,9 @@ export interface SvelteHTMLElements {
 	};
 	'svelte:head': { [name: string]: any };
 	'svelte:boundary': {
-		onerror?: (error: unknown, reset: () => void) => void;
-		failed?: import('svelte').Snippet<[error: unknown, reset: () => void]>;
-		pending?: import('svelte').Snippet;
+		onerror?: ((error: unknown, reset: () => void) => void) | null | undefined;
+		failed?: import('svelte').Snippet<[error: unknown, reset: () => void]> | null | undefined;
+		pending?: import('svelte').Snippet | null | undefined;
 	};
 
 	[name: string]: { [name: string]: any };
diff --git a/packages/svelte/messages/client-warnings/warnings.md b/packages/svelte/messages/client-warnings/warnings.md
index 6998173a99..58d00f3933 100644
--- a/packages/svelte/messages/client-warnings/warnings.md
+++ b/packages/svelte/messages/client-warnings/warnings.md
@@ -120,6 +120,12 @@ When logging a [proxy](https://developer.mozilla.org/en-US/docs/Web/JavaScript/R
 
 The easiest way to log a value as it changes over time is to use the [`$inspect`](/docs/svelte/$inspect) rune. Alternatively, to log things on a one-off basis (for example, inside an event handler) you can use [`$state.snapshot`](/docs/svelte/$state#$state.snapshot) to take a snapshot of the current value.
 
+## derived_inert
+
+> Reading a derived belonging to a now-destroyed effect may result in stale values
+
+A `$derived` value created inside an effect will stop updating when the effect is destroyed. You should create the `$derived` outside the effect, or inside an `$effect.root`.
+
 ## event_handler_invalid
 
 > %handler% should be a function. Did you mean to %suggestion%?
diff --git a/packages/svelte/package.json b/packages/svelte/package.json
index f4d2bf303e..b9bb48aa72 100644
--- a/packages/svelte/package.json
+++ b/packages/svelte/package.json
@@ -2,7 +2,7 @@
   "name": "svelte",
   "description": "Cybernetically enhanced web apps",
   "license": "MIT",
-  "version": "5.55.1",
+  "version": "5.55.9",
   "type": "module",
   "types": "./types/index.d.ts",
   "engines": {
@@ -169,16 +169,16 @@
   "dependencies": {
     "@jridgewell/remapping": "^2.3.4",
     "@jridgewell/sourcemap-codec": "^1.5.0",
-    "@sveltejs/acorn-typescript": "^1.0.5",
+    "@sveltejs/acorn-typescript": "^1.0.10",
     "@types/estree": "^1.0.5",
     "@types/trusted-types": "^2.0.7",
     "acorn": "^8.12.1",
     "aria-query": "5.3.1",
     "axobject-query": "^4.1.0",
     "clsx": "^2.1.1",
-    "devalue": "^5.6.4",
+    "devalue": "^5.8.1",
     "esm-env": "^1.2.1",
-    "esrap": "^2.2.4",
+    "esrap": "^2.2.9",
     "is-reference": "^3.0.3",
     "locate-character": "^3.0.0",
     "magic-string": "^0.30.11",
diff --git a/packages/svelte/scripts/process-messages/index.js b/packages/svelte/scripts/process-messages/index.js
index 1904f1dfb4..c8d7418db4 100644
--- a/packages/svelte/scripts/process-messages/index.js
+++ b/packages/svelte/scripts/process-messages/index.js
@@ -378,7 +378,6 @@ function run() {
 			};
 
 			const block = esrap.print(
-				// @ts-expect-error some bullshit
 				/** @type {ESTree.Program} */ ({ ...ast, body: [clone] }),
 				ts({ comments: [jsdoc_clone] })
 			).code;
diff --git a/packages/svelte/src/ambient.d.ts b/packages/svelte/src/ambient.d.ts
index 159a568477..bbbc86c997 100644
--- a/packages/svelte/src/ambient.d.ts
+++ b/packages/svelte/src/ambient.d.ts
@@ -147,6 +147,8 @@ declare namespace $state {
 	 * </script>
 	 * ```
 	 *
+	 * If `state` has a `toJSON` method, the snapshot will clone the value returned from `toJSON` instead of the original object.
+	 *
 	 * @see {@link https://svelte.dev/docs/svelte/$state#$state.snapshot Documentation}
 	 *
 	 * @param state The value to snapshot
diff --git a/packages/svelte/src/compiler/phases/1-parse/acorn.js b/packages/svelte/src/compiler/phases/1-parse/acorn.js
index 77ce4a461c..45a7c2a58c 100644
--- a/packages/svelte/src/compiler/phases/1-parse/acorn.js
+++ b/packages/svelte/src/compiler/phases/1-parse/acorn.js
@@ -1,10 +1,13 @@
 /** @import { Comment, Program } from 'estree' */
 /** @import { AST } from '#compiler' */
+/** @import { Parser } from './index.js' */
 import * as acorn from 'acorn';
 import { walk } from 'zimmerframe';
 import { tsPlugin } from '@sveltejs/acorn-typescript';
+import * as e from '../../errors.js';
 
-const ParserWithTS = acorn.Parser.extend(tsPlugin());
+const JSParser = acorn.Parser;
+const TSParser = JSParser.extend(tsPlugin());
 
 /**
  * @typedef {Comment & {
@@ -20,15 +23,15 @@ const ParserWithTS = acorn.Parser.extend(tsPlugin());
  * @param {boolean} [is_script]
  */
 export function parse(source, comments, typescript, is_script) {
-	const parser = typescript ? ParserWithTS : acorn.Parser;
+	const acorn = typescript ? TSParser : JSParser;
 
 	const { onComment, add_comments } = get_comment_handlers(
 		source,
 		/** @type {CommentWithLocation[]} */ (comments)
 	);
 
-	// @ts-ignore
-	const parse_statement = parser.prototype.parseStatement;
+	// @ts-expect-error
+	const parse_statement = acorn.prototype.parseStatement;
 
 	// If we're dealing with a <script> then it might contain an export
 	// for something that doesn't exist directly inside but is inside the
@@ -36,7 +39,7 @@ export function parse(source, comments, typescript, is_script) {
 	// an error in these cases
 	if (is_script) {
 		// @ts-ignore
-		parser.prototype.parseStatement = function (...args) {
+		acorn.prototype.parseStatement = function (...args) {
 			const v = parse_statement.call(this, ...args);
 			// @ts-ignore
 			this.undefinedExports = {};
@@ -44,53 +47,77 @@ export function parse(source, comments, typescript, is_script) {
 		};
 	}
 
-	let ast;
-
 	try {
-		ast = parser.parse(source, {
+		const ast = acorn.parse(source, {
 			onComment,
 			sourceType: 'module',
 			ecmaVersion: 16,
 			locations: true
 		});
+
+		add_comments(ast);
+
+		return /** @type {Program} */ (ast);
+	} catch (err) {
+		// TODO the `return` in necessary for TS<7 due to a bug; otherwise
+		// the `finally` block is regarded as unreachable
+		return handle_parse_error(err);
 	} finally {
 		if (is_script) {
-			// @ts-ignore
-			parser.prototype.parseStatement = parse_statement;
+			// @ts-expect-error
+			acorn.prototype.parseStatement = parse_statement;
 		}
 	}
-
-	add_comments(ast);
-
-	return /** @type {Program} */ (ast);
 }
 
 /**
+ * @param {Parser} parser
  * @param {string} source
- * @param {Comment[]} comments
- * @param {boolean} typescript
  * @param {number} index
  * @returns {acorn.Expression & { leadingComments?: CommentWithLocation[]; trailingComments?: CommentWithLocation[]; }}
  */
-export function parse_expression_at(source, comments, typescript, index) {
-	const parser = typescript ? ParserWithTS : acorn.Parser;
+export function parse_expression_at(parser, source, index) {
+	const acorn = parser.ts ? TSParser : JSParser;
 
-	const { onComment, add_comments } = get_comment_handlers(
-		source,
-		/** @type {CommentWithLocation[]} */ (comments),
-		index
-	);
+	const { onComment, add_comments } = get_comment_handlers(source, parser.root.comments, index);
 
-	const ast = parser.parseExpressionAt(source, index, {
-		onComment,
-		sourceType: 'module',
-		ecmaVersion: 16,
-		locations: true
-	});
+	try {
+		const ast = acorn.parseExpressionAt(source, index, {
+			onComment,
+			sourceType: 'module',
+			ecmaVersion: 16,
+			locations: true,
+			preserveParens: true
+		});
+
+		add_comments(ast);
+
+		return ast;
+	} catch (e) {
+		handle_parse_error(e);
+	}
+}
+
+const regex_position_indicator = / \(\d+:\d+\)$/;
 
-	add_comments(ast);
+/**
+ * @param {any} err
+ * @returns {never}
+ */
+function handle_parse_error(err) {
+	e.js_parse_error(err.pos, err.message.replace(regex_position_indicator, ''));
+}
 
-	return ast;
+/**
+ * @param {acorn.Expression} node
+ * @returns {acorn.Expression}
+ */
+export function remove_parens(node) {
+	return walk(node, null, {
+		ParenthesizedExpression(node, context) {
+			return context.visit(node.expression);
+		}
+	});
 }
 
 /**
diff --git a/packages/svelte/src/compiler/phases/1-parse/index.js b/packages/svelte/src/compiler/phases/1-parse/index.js
index 81adbbb555..5242cba31f 100644
--- a/packages/svelte/src/compiler/phases/1-parse/index.js
+++ b/packages/svelte/src/compiler/phases/1-parse/index.js
@@ -11,8 +11,6 @@ import { is_reserved } from '../../../utils.js';
 import { disallow_children } from '../2-analyze/visitors/shared/special-element.js';
 import * as state from '../../state.js';
 
-const regex_position_indicator = / \(\d+:\d+\)$/;
-
 /** @param {number} cc */
 function is_whitespace(cc) {
 	// fast path for common whitespace
@@ -175,14 +173,6 @@ export class Parser {
 		return this.stack[this.stack.length - 1];
 	}
 
-	/**
-	 * @param {any} err
-	 * @returns {never}
-	 */
-	acorn_error(err) {
-		e.js_parse_error(err.pos, err.message.replace(regex_position_indicator, ''));
-	}
-
 	/**
 	 * @param {string} str
 	 * @param {boolean} required
diff --git a/packages/svelte/src/compiler/phases/1-parse/read/context.js b/packages/svelte/src/compiler/phases/1-parse/read/context.js
index f90d59fa0b..cdb239ef5b 100644
--- a/packages/svelte/src/compiler/phases/1-parse/read/context.js
+++ b/packages/svelte/src/compiler/phases/1-parse/read/context.js
@@ -1,7 +1,7 @@
 /** @import { Pattern } from 'estree' */
 /** @import { Parser } from '../index.js' */
 import { match_bracket } from '../utils/bracket.js';
-import { parse_expression_at } from '../acorn.js';
+import { parse_expression_at, remove_parens } from '../acorn.js';
 import { regex_not_newline_characters } from '../../patterns.js';
 import * as e from '../../../errors.js';
 
@@ -35,38 +35,32 @@ export default function read_pattern(parser) {
 
 	const pattern_string = parser.template.slice(start, i);
 
-	try {
-		// the length of the `space_with_newline` has to be start - 1
-		// because we added a `(` in front of the pattern_string,
-		// which shifted the entire string to right by 1
-		// so we offset it by removing 1 character in the `space_with_newline`
-		// to achieve that, we remove the 1st space encountered,
-		// so it will not affect the `column` of the node
-		let space_with_newline = parser.template
-			.slice(0, start)
-			.replace(regex_not_newline_characters, ' ');
-		const first_space = space_with_newline.indexOf(' ');
-		space_with_newline =
-			space_with_newline.slice(0, first_space) + space_with_newline.slice(first_space + 1);
-
-		const expression = /** @type {any} */ (
-			parse_expression_at(
-				`${space_with_newline}(${pattern_string} = 1)`,
-				parser.root.comments,
-				parser.ts,
-				start - 1
-			)
-		).left;
-
-		expression.typeAnnotation = read_type_annotation(parser);
-		if (expression.typeAnnotation) {
-			expression.end = expression.typeAnnotation.end;
-		}
-
-		return expression;
-	} catch (error) {
-		parser.acorn_error(error);
+	// the length of the `space_with_newline` has to be start - 1
+	// because we added a `(` in front of the pattern_string,
+	// which shifted the entire string to right by 1
+	// so we offset it by removing 1 character in the `space_with_newline`
+	// to achieve that, we remove the 1st space encountered,
+	// so it will not affect the `column` of the node
+	let space_with_newline = parser.template
+		.slice(0, start)
+		.replace(regex_not_newline_characters, ' ');
+	const first_space = space_with_newline.indexOf(' ');
+	space_with_newline =
+		space_with_newline.slice(0, first_space) + space_with_newline.slice(first_space + 1);
+
+	/** @type {any} */
+	let expression = remove_parens(
+		parse_expression_at(parser, `${space_with_newline}(${pattern_string} = 1)`, start - 1)
+	);
+
+	expression = expression.left;
+
+	expression.typeAnnotation = read_type_annotation(parser);
+	if (expression.typeAnnotation) {
+		expression.end = expression.typeAnnotation.end;
 	}
+
+	return expression;
 }
 
 /**
@@ -92,13 +86,13 @@ function read_type_annotation(parser) {
 		// parameters as part of a sequence expression instead, and will then error on optional
 		// parameters (`?:`). Therefore replace that sequence with something that will not error.
 		parser.template.slice(parser.index).replace(/\?\s*:/g, ':');
-	let expression = parse_expression_at(template, parser.root.comments, parser.ts, a);
+	let expression = remove_parens(parse_expression_at(parser, template, a));
 
 	// `foo: bar = baz` gets mangled — fix it
 	if (expression.type === 'AssignmentExpression') {
 		let b = expression.right.start;
 		while (template[b] !== '=') b -= 1;
-		expression = parse_expression_at(template.slice(0, b), parser.root.comments, parser.ts, a);
+		expression = remove_parens(parse_expression_at(parser, template.slice(0, b), a));
 	}
 
 	// `array as item: string, index` becomes `string, index`, which is mistaken as a sequence expression - fix that
diff --git a/packages/svelte/src/compiler/phases/1-parse/read/expression.js b/packages/svelte/src/compiler/phases/1-parse/read/expression.js
index 5d21f85792..1c8f097c2f 100644
--- a/packages/svelte/src/compiler/phases/1-parse/read/expression.js
+++ b/packages/svelte/src/compiler/phases/1-parse/read/expression.js
@@ -1,6 +1,6 @@
 /** @import { Expression } from 'estree' */
 /** @import { Parser } from '../index.js' */
-import { parse_expression_at } from '../acorn.js';
+import { parse_expression_at, remove_parens } from '../acorn.js';
 import { regex_whitespace } from '../../patterns.js';
 import * as e from '../../../errors.js';
 import { find_matching_bracket } from '../utils/bracket.js';
@@ -34,50 +34,16 @@ export function get_loose_identifier(parser, opening_token) {
  */
 export default function read_expression(parser, opening_token, disallow_loose) {
 	try {
-		let comment_index = parser.root.comments.length;
-
-		const node = parse_expression_at(
-			parser.template,
-			parser.root.comments,
-			parser.ts,
-			parser.index
-		);
-
-		let num_parens = 0;
-
-		let i = parser.root.comments.length;
-		while (i-- > comment_index) {
-			const comment = parser.root.comments[i];
-			if (comment.end < node.start) {
-				parser.index = comment.end;
-				break;
-			}
-		}
-
-		for (let i = parser.index; i < /** @type {number} */ (node.start); i += 1) {
-			if (parser.template[i] === '(') num_parens += 1;
-		}
+		const node = parse_expression_at(parser, parser.template, parser.index);
 
 		let index = /** @type {number} */ (node.end);
 
 		const last_comment = parser.root.comments.at(-1);
 		if (last_comment && last_comment.end > index) index = last_comment.end;
 
-		while (num_parens > 0) {
-			const char = parser.template[index];
-
-			if (char === ')') {
-				num_parens -= 1;
-			} else if (!regex_whitespace.test(char)) {
-				e.expected_token(index, ')');
-			}
-
-			index += 1;
-		}
-
 		parser.index = index;
 
-		return /** @type {Expression} */ (node);
+		return /** @type {Expression} */ (remove_parens(node));
 	} catch (err) {
 		// If we are in an each loop we need the error to be thrown in cases like
 		// `as { y = z }` so we still throw and handle the error there
@@ -88,6 +54,6 @@ export default function read_expression(parser, opening_token, disallow_loose) {
 			}
 		}
 
-		parser.acorn_error(err);
+		throw err;
 	}
 }
diff --git a/packages/svelte/src/compiler/phases/1-parse/read/script.js b/packages/svelte/src/compiler/phases/1-parse/read/script.js
index 65153edfc8..4472ce61c3 100644
--- a/packages/svelte/src/compiler/phases/1-parse/read/script.js
+++ b/packages/svelte/src/compiler/phases/1-parse/read/script.js
@@ -31,14 +31,7 @@ export function read_script(parser, start, attributes) {
 		parser.template.slice(0, script_start).replace(regex_not_newline_characters, ' ') + data;
 	parser.read(regex_starts_with_closing_script_tag);
 
-	/** @type {Program} */
-	let ast;
-
-	try {
-		ast = acorn.parse(source, parser.root.comments, parser.ts, true);
-	} catch (err) {
-		parser.acorn_error(err);
-	}
+	const ast = acorn.parse(source, parser.root.comments, parser.ts, true);
 
 	ast.start = script_start;
 
diff --git a/packages/svelte/src/compiler/phases/1-parse/read/style.js b/packages/svelte/src/compiler/phases/1-parse/read/style.js
index 8cb1d54d54..160e5da277 100644
--- a/packages/svelte/src/compiler/phases/1-parse/read/style.js
+++ b/packages/svelte/src/compiler/phases/1-parse/read/style.js
@@ -524,6 +524,21 @@ function read_value(parser) {
 			in_url = true;
 		} else if ((char === ';' || char === '{' || char === '}') && !in_url && !quote_mark) {
 			return value.trim();
+		} else if (
+			char === '/' &&
+			!in_url &&
+			!quote_mark &&
+			parser.template[parser.index + 1] === '*'
+		) {
+			parser.index += 2;
+			while (parser.index < parser.template.length) {
+				if (parser.template[parser.index] === '*' && parser.template[parser.index + 1] === '/') {
+					parser.index += 2;
+					break;
+				}
+				parser.index++;
+			}
+			continue;
 		}
 
 		value += char;
diff --git a/packages/svelte/src/compiler/phases/1-parse/state/tag.js b/packages/svelte/src/compiler/phases/1-parse/state/tag.js
index d9518c726f..ff153128a5 100644
--- a/packages/svelte/src/compiler/phases/1-parse/state/tag.js
+++ b/packages/svelte/src/compiler/phases/1-parse/state/tag.js
@@ -392,12 +392,7 @@ function open(parser) {
 
 		let function_expression = matched
 			? /** @type {ArrowFunctionExpression} */ (
-					parse_expression_at(
-						prelude + `${params} => {}`,
-						parser.root.comments,
-						parser.ts,
-						params_start
-					)
+					parse_expression_at(parser, prelude + `${params} => {}`, params_start)
 				)
 			: { params: [] };
 
diff --git a/packages/svelte/src/compiler/phases/2-analyze/types.d.ts b/packages/svelte/src/compiler/phases/2-analyze/types.d.ts
index 9d24f9dbac..354f1c0856 100644
--- a/packages/svelte/src/compiler/phases/2-analyze/types.d.ts
+++ b/packages/svelte/src/compiler/phases/2-analyze/types.d.ts
@@ -2,6 +2,7 @@ import type { Scope } from '../scope.js';
 import type { ComponentAnalysis, ReactiveStatement } from '../types.js';
 import type { AST, StateField, ValidatedCompileOptions } from '#compiler';
 import type { ExpressionMetadata } from '../nodes.js';
+import type { Identifier } from 'estree';
 
 export interface AnalysisState {
 	scope: Scope;
@@ -33,6 +34,13 @@ export interface AnalysisState {
 	 * Set when we're inside a `$derived(...)` expression (but not `$derived.by(...)`) or `@const`
 	 */
 	derived_function_depth: number;
+
+	/** Collected info about async `{@const }` declarations */
+	async_consts?: {
+		id: Identifier;
+		/** How many `$.run(...)` entries are already allocated in this scope */
+		declaration_count: number;
+	};
 }
 
 export type Context<State extends AnalysisState = AnalysisState> = import('zimmerframe').Context<
diff --git a/packages/svelte/src/compiler/phases/2-analyze/visitors/ConstTag.js b/packages/svelte/src/compiler/phases/2-analyze/visitors/ConstTag.js
index 77ea654905..4f07249a39 100644
--- a/packages/svelte/src/compiler/phases/2-analyze/visitors/ConstTag.js
+++ b/packages/svelte/src/compiler/phases/2-analyze/visitors/ConstTag.js
@@ -1,6 +1,7 @@
 /** @import { AST } from '#compiler' */
 /** @import { Context } from '../types' */
 import * as e from '../../../errors.js';
+import * as b from '#compiler/builders';
 import { validate_opening_tag } from './shared/utils.js';
 
 /**
@@ -42,4 +43,29 @@ export function ConstTag(node, context) {
 		function_depth: context.state.function_depth + 1,
 		derived_function_depth: context.state.function_depth + 1
 	});
+
+	const has_await = node.metadata.expression.has_await;
+	const blockers = [...node.metadata.expression.dependencies]
+		.map((dep) => dep.blocker)
+		.filter((b) => b !== null && b.object !== context.state.async_consts?.id);
+
+	if (has_await || context.state.async_consts || blockers.length > 0) {
+		const run = (context.state.async_consts ??= {
+			id: context.state.analysis.root.unique('promises'),
+			declaration_count: 0
+		});
+		node.metadata.promises_id = run.id;
+
+		const bindings = context.state.scope.get_bindings(declaration);
+
+		// keep the counter in sync with the number of thunks pushed in ConstTag in transform
+		// TODO 6.0 once non-async and non-runes mode is gone investigate making this more robust
+		// via something like the approach in https://github.com/sveltejs/svelte/pull/18032
+		const length = run.declaration_count + (blockers.length > 0 ? 1 : 0);
+		run.declaration_count += blockers.length > 0 ? 2 : 1;
+		const blocker = b.member(run.id, b.literal(length), true);
+		for (const binding of bindings) {
+			binding.blocker = blocker;
+		}
+	}
 }
diff --git a/packages/svelte/src/compiler/phases/2-analyze/visitors/Fragment.js b/packages/svelte/src/compiler/phases/2-analyze/visitors/Fragment.js
index 02d780dc0d..def3860175 100644
--- a/packages/svelte/src/compiler/phases/2-analyze/visitors/Fragment.js
+++ b/packages/svelte/src/compiler/phases/2-analyze/visitors/Fragment.js
@@ -6,5 +6,5 @@
  * @param {Context} context
  */
 export function Fragment(node, context) {
-	context.next({ ...context.state, fragment: node });
+	context.next({ ...context.state, fragment: node, async_consts: undefined });
 }
diff --git a/packages/svelte/src/compiler/phases/3-transform/client/visitors/AwaitBlock.js b/packages/svelte/src/compiler/phases/3-transform/client/visitors/AwaitBlock.js
index 832c56818b..b8def178f2 100644
--- a/packages/svelte/src/compiler/phases/3-transform/client/visitors/AwaitBlock.js
+++ b/packages/svelte/src/compiler/phases/3-transform/client/visitors/AwaitBlock.js
@@ -71,14 +71,14 @@ export function AwaitBlock(node, context) {
 		'await'
 	);
 
-	if (node.metadata.expression.has_blockers()) {
+	if (node.metadata.expression.has_blockers() || node.metadata.expression.has_await) {
 		context.state.init.push(
 			b.stmt(
 				b.call(
 					'$.async',
 					context.state.node,
 					node.metadata.expression.blockers(),
-					b.array([]),
+					b.array([]), // {#await await ...} is special insofar that the await should not be waited on
 					b.arrow([context.state.node], b.block([stmt]))
 				)
 			)
diff --git a/packages/svelte/src/compiler/phases/3-transform/client/visitors/ConstTag.js b/packages/svelte/src/compiler/phases/3-transform/client/visitors/ConstTag.js
index d2bd3c10dc..bf559cd24d 100644
--- a/packages/svelte/src/compiler/phases/3-transform/client/visitors/ConstTag.js
+++ b/packages/svelte/src/compiler/phases/3-transform/client/visitors/ConstTag.js
@@ -1,7 +1,6 @@
-/** @import { Expression, Identifier, Pattern } from 'estree' */
+/** @import { Expression, Identifier, Pattern, Statement } from 'estree' */
 /** @import { AST } from '#compiler' */
 /** @import { ComponentContext } from '../types' */
-/** @import { ExpressionMetadata } from '../../../nodes.js' */
 import { dev } from '../../../../state.js';
 import { extract_identifiers } from '../../../../utils/ast.js';
 import * as b from '#compiler/builders';
@@ -27,13 +26,7 @@ export function ConstTag(node, context) {
 
 		context.state.transform[declaration.id.name] = { read: get_value };
 
-		add_const_declaration(
-			context.state,
-			declaration.id,
-			expression,
-			node.metadata.expression,
-			context.state.scope.get_bindings(declaration)
-		);
+		add_const_declaration(context.state, declaration.id, expression, node.metadata);
 	} else {
 		const identifiers = extract_identifiers(declaration.id);
 		const tmp = b.id(context.state.scope.generate('computed_const'));
@@ -70,13 +63,7 @@ export function ConstTag(node, context) {
 			expression = b.call('$.tag', expression, b.literal('[@const]'));
 		}
 
-		add_const_declaration(
-			context.state,
-			tmp,
-			expression,
-			node.metadata.expression,
-			context.state.scope.get_bindings(declaration)
-		);
+		add_const_declaration(context.state, tmp, expression, node.metadata);
 
 		for (const node of identifiers) {
 			context.state.transform[node.name] = {
@@ -90,43 +77,34 @@ export function ConstTag(node, context) {
  * @param {ComponentContext['state']} state
  * @param {Identifier} id
  * @param {Expression} expression
- * @param {ExpressionMetadata} metadata
- * @param {import('#compiler').Binding[]} bindings
+ * @param {AST.ConstTag['metadata']} metadata
  */
-function add_const_declaration(state, id, expression, metadata, bindings) {
+function add_const_declaration(state, id, expression, metadata) {
 	// we need to eagerly evaluate the expression in order to hit any
 	// 'Cannot access x before initialization' errors
 	const after = dev ? [b.stmt(b.call('$.get', id))] : [];
 
-	const has_await = metadata.has_await;
-	const blockers = [...metadata.dependencies]
+	const blockers = [...metadata.expression.dependencies]
 		.map((dep) => dep.blocker)
 		.filter((b) => b !== null && b.object !== state.async_consts?.id);
 
-	if (has_await || state.async_consts || blockers.length > 0) {
+	if (metadata.promises_id) {
 		const run = (state.async_consts ??= {
-			id: b.id(state.scope.generate('promises')),
+			id: metadata.promises_id,
 			thunks: []
 		});
 
 		state.consts.push(b.let(id));
 
-		const assignment = b.assignment('=', id, expression);
-		const body = after.length === 0 ? assignment : b.block([b.stmt(assignment), ...after]);
-
 		if (blockers.length === 1) {
 			run.thunks.push(b.thunk(b.member(/** @type {Expression} */ (blockers[0]), 'promise')));
 		} else if (blockers.length > 0) {
 			run.thunks.push(b.thunk(b.call('$.wait', b.array(blockers))));
 		}
 
-		run.thunks.push(b.thunk(body, has_await));
-
-		const blocker = b.member(run.id, b.literal(run.thunks.length - 1), true);
-
-		for (const binding of bindings) {
-			binding.blocker = blocker;
-		}
+		// keep the number of thunks pushed in sync with ConstTag in analysis phase
+		const assignment = b.assignment('=', id, expression);
+		run.thunks.push(b.thunk(assignment, metadata.expression.has_await));
 	} else {
 		state.consts.push(b.const(id, expression));
 		state.consts.push(...after);
diff --git a/packages/svelte/src/compiler/phases/3-transform/client/visitors/DebugTag.js b/packages/svelte/src/compiler/phases/3-transform/client/visitors/DebugTag.js
index ef9a070859..01a7e0e872 100644
--- a/packages/svelte/src/compiler/phases/3-transform/client/visitors/DebugTag.js
+++ b/packages/svelte/src/compiler/phases/3-transform/client/visitors/DebugTag.js
@@ -8,6 +8,10 @@ import * as b from '#compiler/builders';
  * @param {ComponentContext} context
  */
 export function DebugTag(node, context) {
+	const blockers = node.identifiers
+		.map((identifier) => context.state.scope.get(identifier.name)?.blocker)
+		.filter((blocker) => blocker != null);
+
 	const object = b.object(
 		node.identifiers.map((identifier) => {
 			const visited = b.call('$.snapshot', /** @type {Expression} */ (context.visit(identifier)));
@@ -20,9 +24,11 @@ export function DebugTag(node, context) {
 		})
 	);
 
-	const call = b.call('console.log', object);
+	const args = [b.thunk(b.block([b.stmt(b.call('console.log', object)), b.debugger]))];
 
-	context.state.init.push(
-		b.stmt(b.call('$.template_effect', b.thunk(b.block([b.stmt(call), b.debugger]))))
-	);
+	if (blockers.length > 0) {
+		args.push(b.array([]), b.array([]), b.array(blockers));
+	}
+
+	context.state.init.push(b.stmt(b.call('$.template_effect', ...args)));
 }
diff --git a/packages/svelte/src/compiler/phases/3-transform/client/visitors/VariableDeclaration.js b/packages/svelte/src/compiler/phases/3-transform/client/visitors/VariableDeclaration.js
index 16aa164d84..dffa79cd7a 100644
--- a/packages/svelte/src/compiler/phases/3-transform/client/visitors/VariableDeclaration.js
+++ b/packages/svelte/src/compiler/phases/3-transform/client/visitors/VariableDeclaration.js
@@ -386,13 +386,17 @@ export function VariableDeclaration(node, context) {
  * @param {Expression} value
  */
 function create_state_declarators(declarator, context, value) {
+	/**
+	 * @param {Expression} value
+	 * @param {string} name
+	 */
+	const mutable_source = (value, name) => {
+		const call = b.call('$.mutable_source', value, context.state.analysis.immutable && b.true);
+		return dev ? b.call('$.tag', call, b.literal(name)) : call;
+	};
+
 	if (declarator.id.type === 'Identifier') {
-		return [
-			b.declarator(
-				declarator.id,
-				b.call('$.mutable_source', value, context.state.analysis.immutable ? b.true : undefined)
-			)
-		];
+		return [b.declarator(declarator.id, mutable_source(value, declarator.id.name))];
 	}
 
 	const tmp = b.id(context.state.scope.generate('tmp'));
@@ -414,7 +418,7 @@ function create_state_declarators(declarator, context, value) {
 			return b.declarator(
 				path.node,
 				binding?.kind === 'state'
-					? b.call('$.mutable_source', value, context.state.analysis.immutable ? b.true : undefined)
+					? mutable_source(value, /** @type {Identifier} */ (path.node).name)
 					: value
 			);
 		})
diff --git a/packages/svelte/src/compiler/phases/3-transform/server/visitors/AwaitBlock.js b/packages/svelte/src/compiler/phases/3-transform/server/visitors/AwaitBlock.js
index 84c2a81612..ba05ca1357 100644
--- a/packages/svelte/src/compiler/phases/3-transform/server/visitors/AwaitBlock.js
+++ b/packages/svelte/src/compiler/phases/3-transform/server/visitors/AwaitBlock.js
@@ -9,12 +9,19 @@ import { block_close, create_child_block } from './shared/utils.js';
  * @param {ComponentContext} context
  */
 export function AwaitBlock(node, context) {
+	let expression = /** @type {Expression} */ (context.visit(node.expression));
+	if (node.metadata.expression.has_await) {
+		// If this is an await expression, turn it into a IIFE so that the result is a promise.
+		// {#await await ...} is special insofar that the await should not be waited on.
+		expression = b.call(b.arrow([], expression, true));
+	}
+
 	/** @type {Statement} */
 	let statement = b.stmt(
 		b.call(
 			'$.await',
 			b.id('$$renderer'),
-			/** @type {Expression} */ (context.visit(node.expression)),
+			expression,
 			b.thunk(
 				node.pending ? /** @type {BlockStatement} */ (context.visit(node.pending)) : b.block([])
 			),
diff --git a/packages/svelte/src/compiler/phases/3-transform/server/visitors/Component.js b/packages/svelte/src/compiler/phases/3-transform/server/visitors/Component.js
index 8e7d7bcdbf..ed202edd3b 100644
--- a/packages/svelte/src/compiler/phases/3-transform/server/visitors/Component.js
+++ b/packages/svelte/src/compiler/phases/3-transform/server/visitors/Component.js
@@ -9,5 +9,9 @@ import { build_inline_component } from './shared/component.js';
  * @param {ComponentContext} context
  */
 export function Component(node, context) {
-	build_inline_component(node, /** @type {Expression} */ (context.visit(b.id(node.name))), context);
+	build_inline_component(
+		node,
+		/** @type {Expression} */ (context.visit(b.member_id(node.name))),
+		context
+	);
 }
diff --git a/packages/svelte/src/compiler/phases/3-transform/server/visitors/ConstTag.js b/packages/svelte/src/compiler/phases/3-transform/server/visitors/ConstTag.js
index d2ff9a10b4..9420bdd6d2 100644
--- a/packages/svelte/src/compiler/phases/3-transform/server/visitors/ConstTag.js
+++ b/packages/svelte/src/compiler/phases/3-transform/server/visitors/ConstTag.js
@@ -1,4 +1,4 @@
-/** @import { Expression, Pattern } from 'estree' */
+/** @import { Expression, Pattern, Statement } from 'estree' */
 /** @import { AST } from '#compiler' */
 /** @import { ComponentContext } from '../types.js' */
 import * as b from '#compiler/builders';
@@ -12,19 +12,17 @@ export function ConstTag(node, context) {
 	const declaration = node.declaration.declarations[0];
 	const id = /** @type {Pattern} */ (context.visit(declaration.id));
 	const init = /** @type {Expression} */ (context.visit(declaration.init));
-	const has_await = node.metadata.expression.has_await;
 	const blockers = [...node.metadata.expression.dependencies]
 		.map((dep) => dep.blocker)
 		.filter((b) => b !== null && b.object !== context.state.async_consts?.id);
 
-	if (has_await || context.state.async_consts || blockers.length > 0) {
+	if (node.metadata.promises_id) {
 		const run = (context.state.async_consts ??= {
-			id: b.id(context.state.scope.generate('promises')),
+			id: node.metadata.promises_id,
 			thunks: []
 		});
 
 		const identifiers = extract_identifiers(declaration.id);
-		const bindings = context.state.scope.get_bindings(declaration);
 
 		for (const identifier of identifiers) {
 			context.state.init.push(b.let(identifier.name));
@@ -36,13 +34,9 @@ export function ConstTag(node, context) {
 			run.thunks.push(b.thunk(b.call('Promise.all', b.array(blockers))));
 		}
 
+		// keep the number of thunks pushed in sync with ConstTag in analysis phase
 		const assignment = b.assignment('=', id, init);
-		run.thunks.push(b.thunk(b.block([b.stmt(assignment)]), has_await));
-
-		const blocker = b.member(run.id, b.literal(run.thunks.length - 1), true);
-		for (const binding of bindings) {
-			binding.blocker = blocker;
-		}
+		run.thunks.push(b.thunk(assignment, node.metadata.expression.has_await));
 	} else {
 		context.state.init.push(b.const(id, init));
 	}
diff --git a/packages/svelte/src/compiler/phases/3-transform/server/visitors/DebugTag.js b/packages/svelte/src/compiler/phases/3-transform/server/visitors/DebugTag.js
index 31b53fd3eb..3c4af2fe04 100644
--- a/packages/svelte/src/compiler/phases/3-transform/server/visitors/DebugTag.js
+++ b/packages/svelte/src/compiler/phases/3-transform/server/visitors/DebugTag.js
@@ -2,23 +2,34 @@
 /** @import { AST } from '#compiler' */
 /** @import { ComponentContext } from '../types.js' */
 import * as b from '#compiler/builders';
+import { create_child_block } from './shared/utils.js';
 
 /**
  * @param {AST.DebugTag} node
  * @param {ComponentContext} context
  */
 export function DebugTag(node, context) {
+	const blockers = node.identifiers
+		.map((identifier) => context.state.scope.get(identifier.name)?.blocker)
+		.filter((blocker) => blocker != null);
+
 	context.state.template.push(
-		b.stmt(
-			b.call(
-				'console.log',
-				b.object(
-					node.identifiers.map((identifier) =>
-						b.prop('init', identifier, /** @type {Expression} */ (context.visit(identifier)))
+		...create_child_block(
+			[
+				b.stmt(
+					b.call(
+						'console.log',
+						b.object(
+							node.identifiers.map((identifier) =>
+								b.prop('init', identifier, /** @type {Expression} */ (context.visit(identifier)))
+							)
+						)
 					)
-				)
-			)
-		),
-		b.debugger
+				),
+				b.debugger
+			],
+			b.array(blockers),
+			false
+		)
 	);
 }
diff --git a/packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/utils.js b/packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/utils.js
index a87642bc4c..62e1c44094 100644
--- a/packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/utils.js
+++ b/packages/svelte/src/compiler/phases/3-transform/server/visitors/shared/utils.js
@@ -12,7 +12,7 @@ import {
 import * as b from '#compiler/builders';
 import { sanitize_template_string } from '../../../../../utils/sanitize_template_string.js';
 import { regex_whitespaces_strict } from '../../../../patterns.js';
-import { has_await_expression } from '../../../../../utils/ast.js';
+import { has_await_expression, save } from '../../../../../utils/ast.js';
 import { ExpressionMetadata } from '../../../../nodes.js';
 
 /** Opens an if/each block, so that we can remove nodes in the case of a mismatch */
@@ -229,18 +229,25 @@ export function build_attribute_value(
 				? node.data.replace(regex_whitespaces_strict, ' ')
 				: node.data;
 		} else {
-			expressions.push(
-				b.call(
-					'$.stringify',
-					transform(
-						/** @type {Expression} */ (context.visit(node.expression)),
-						node.metadata.expression
-					)
-				)
-			);
+			const evaluated = context.state.scope.evaluate(node.expression);
 
-			quasi = b.quasi('', i + 1 === value.length);
-			quasis.push(quasi);
+			if (evaluated.is_known) {
+				quasi.value.cooked += (evaluated.value ?? '') + '';
+			} else {
+				const expression = transform(
+					/** @type {Expression} */ (context.visit(node.expression)),
+					node.metadata.expression
+				);
+
+				expressions.push(
+					evaluated.is_string && evaluated.is_defined
+						? expression
+						: b.call('$.stringify', expression)
+				);
+
+				quasi = b.quasi('', i + 1 === value.length);
+				quasis.push(quasi);
+			}
 		}
 	}
 
@@ -248,7 +255,9 @@ export function build_attribute_value(
 		quasi.value.raw = sanitize_template_string(/** @type {string} */ (quasi.value.cooked));
 	}
 
-	return b.template(quasis, expressions);
+	return expressions.length > 0
+		? b.template(quasis, expressions)
+		: b.literal(/** @type {string} */ (quasi.value.cooked));
 }
 
 /**
@@ -360,7 +369,7 @@ export class PromiseOptimiser {
 
 		return b.const(
 			b.array_pattern(this.expressions.map((_, i) => b.id(`$$${i}`))),
-			b.await(b.call('Promise.all', promises))
+			save(b.call('Promise.all', promises))
 		);
 	}
 
diff --git a/packages/svelte/src/compiler/print/index.js b/packages/svelte/src/compiler/print/index.js
index 26dc1b88e8..c511ee6da0 100644
--- a/packages/svelte/src/compiler/print/index.js
+++ b/packages/svelte/src/compiler/print/index.js
@@ -247,7 +247,7 @@ const css_visitors = {
 	},
 
 	Percentage(node, context) {
-		context.write(`${node.value}%`);
+		context.write(node.value);
 	},
 
 	PseudoClassSelector(node, context) {
@@ -417,6 +417,7 @@ const svelte_visitors = (comments) => ({
 				const is_block_element =
 					child_node.type === 'RegularElement' ||
 					child_node.type === 'Component' ||
+					child_node.type === 'SvelteBody' ||
 					child_node.type === 'SvelteHead' ||
 					child_node.type === 'SvelteFragment' ||
 					child_node.type === 'SvelteBoundary' ||
@@ -821,6 +822,10 @@ const svelte_visitors = (comments) => ({
 		context.write('</style>');
 	},
 
+	SvelteBody(node, context) {
+		base_element(node, context, comments);
+	},
+
 	SvelteBoundary(node, context) {
 		base_element(node, context, comments);
 	},
diff --git a/packages/svelte/src/compiler/types/template.d.ts b/packages/svelte/src/compiler/types/template.d.ts
index 3c1e3e772c..2964e46761 100644
--- a/packages/svelte/src/compiler/types/template.d.ts
+++ b/packages/svelte/src/compiler/types/template.d.ts
@@ -155,6 +155,8 @@ export namespace AST {
 		/** @internal */
 		metadata: {
 			expression: ExpressionMetadata;
+			/** If this const tag contains an await expression, or needs to wait on other async, this is set */
+			promises_id?: Identifier;
 		};
 	}
 
diff --git a/packages/svelte/src/constants.js b/packages/svelte/src/constants.js
index a3a109b943..1e721b7d30 100644
--- a/packages/svelte/src/constants.js
+++ b/packages/svelte/src/constants.js
@@ -32,7 +32,7 @@ export const ELEMENT_IS_NAMESPACED = 1;
 export const ELEMENT_PRESERVE_ATTRIBUTE_CASE = 1 << 1;
 export const ELEMENT_IS_INPUT = 1 << 2;
 
-export const UNINITIALIZED = Symbol();
+export const UNINITIALIZED = Symbol('uninitialized');
 
 // Dev-time component properties
 export const FILENAME = Symbol('filename');
diff --git a/packages/svelte/src/internal/client/constants.js b/packages/svelte/src/internal/client/constants.js
index 3fcea0e1e2..d96cb5204c 100644
--- a/packages/svelte/src/internal/client/constants.js
+++ b/packages/svelte/src/internal/client/constants.js
@@ -48,7 +48,8 @@ export const STATE_EAGER_EFFECT = 1 << 27;
 /**
  * Tells that we marked this derived and its reactions as visited during the "mark as (maybe) dirty"-phase.
  * Will be lifted during execution of the derived and during checking its dirty state (both are necessary
- * because a derived might be checked but not executed).
+ * because a derived might be checked but not executed). This is a pure performance optimization flag and
+ * should not be used for any other purpose!
  */
 export const WAS_MARKED = 1 << 16;
 
@@ -62,6 +63,13 @@ export const STATE_SYMBOL = Symbol('$state');
 export const LEGACY_PROPS = Symbol('legacy props');
 export const LOADING_ATTR_SYMBOL = Symbol('');
 export const PROXY_PATH_SYMBOL = Symbol('proxy path');
+export const ATTRIBUTES_CACHE = Symbol('attributes');
+export const CLASS_CACHE = Symbol('class');
+export const STYLE_CACHE = Symbol('style');
+export const TEXT_CACHE = Symbol('text');
+export const FORM_RESET_HANDLER = Symbol('form reset');
+/** An anchor might change, via this symbol on the original anchor we can tell HMR about the updated anchor */
+export const HMR_ANCHOR = Symbol('hmr anchor');
 
 /** allow users to ignore aborted signal errors if `reason.name === 'StaleReactionError` */
 export const STALE_REACTION = new (class StaleReactionError extends Error {
diff --git a/packages/svelte/src/internal/client/dev/hmr.js b/packages/svelte/src/internal/client/dev/hmr.js
index 13ee35b20d..73dba95f9b 100644
--- a/packages/svelte/src/internal/client/dev/hmr.js
+++ b/packages/svelte/src/internal/client/dev/hmr.js
@@ -1,6 +1,6 @@
 /** @import { Effect, TemplateNode } from '#client' */
 import { FILENAME, HMR } from '../../../constants.js';
-import { EFFECT_TRANSPARENT } from '#client/constants';
+import { EFFECT_TRANSPARENT, HMR_ANCHOR } from '#client/constants';
 import { hydrate_node, hydrating } from '../dom/hydration.js';
 import { block, branch, destroy_effect } from '../reactivity/effects.js';
 import { set, source } from '../reactivity/sources.js';
@@ -15,10 +15,10 @@ export function hmr(fn) {
 	const current = source(fn);
 
 	/**
-	 * @param {TemplateNode} anchor
+	 * @param {TemplateNode} initial_anchor
 	 * @param {any} props
 	 */
-	function wrapper(anchor, props) {
+	function wrapper(initial_anchor, props) {
 		let component = {};
 		let instance = {};
 
@@ -26,6 +26,7 @@ export function hmr(fn) {
 		let effect;
 
 		let ran = false;
+		let anchor = initial_anchor;
 
 		block(() => {
 			if (component === (component = get(current))) {
@@ -39,6 +40,8 @@ export function hmr(fn) {
 			}
 
 			effect = branch(() => {
+				anchor = /** @type {any} */ (anchor)[HMR_ANCHOR] ?? anchor;
+
 				// when the component is invalidated, replace it without transitions
 				if (ran) set_should_intro(false);
 
diff --git a/packages/svelte/src/internal/client/dev/inspect.js b/packages/svelte/src/internal/client/dev/inspect.js
index 75b29ce9b1..7a8fa0e963 100644
--- a/packages/svelte/src/internal/client/dev/inspect.js
+++ b/packages/svelte/src/internal/client/dev/inspect.js
@@ -20,6 +20,8 @@ export function inspect(get_value, inspector, show_stack = false) {
 	// in an error (an `$inspect(object.property)` will run before the
 	// `{#if object}...{/if}` that contains it)
 	eager_effect(() => {
+		error = UNINITIALIZED;
+
 		try {
 			var value = get_value();
 		} catch (e) {
diff --git a/packages/svelte/src/internal/client/dom/blocks/async.js b/packages/svelte/src/internal/client/dom/blocks/async.js
index 43af3d8dd3..170529a6b9 100644
--- a/packages/svelte/src/internal/client/dom/blocks/async.js
+++ b/packages/svelte/src/internal/client/dom/blocks/async.js
@@ -1,5 +1,5 @@
 /** @import { Blocker, TemplateNode, Value } from '#client' */
-import { flatten, increment_pending } from '../../reactivity/async.js';
+import { flatten } from '../../reactivity/async.js';
 import { get } from '../../runtime.js';
 import {
 	hydrate_next,
@@ -42,8 +42,6 @@ export function async(node, blockers = [], expressions = [], fn) {
 		return;
 	}
 
-	const decrement_pending = increment_pending();
-
 	if (was_hydrating) {
 		var previous_hydrate_node = hydrate_node;
 		set_hydrate_node(end);
@@ -64,8 +62,6 @@ export function async(node, blockers = [], expressions = [], fn) {
 			if (was_hydrating) {
 				set_hydrating(false);
 			}
-
-			decrement_pending();
 		}
 	});
 }
diff --git a/packages/svelte/src/internal/client/dom/blocks/await.js b/packages/svelte/src/internal/client/dom/blocks/await.js
index d6430547b5..194a7ccc0e 100644
--- a/packages/svelte/src/internal/client/dom/blocks/await.js
+++ b/packages/svelte/src/internal/client/dom/blocks/await.js
@@ -7,7 +7,8 @@ import {
 	hydrating,
 	skip_nodes,
 	set_hydrate_node,
-	set_hydrating
+	set_hydrating,
+	hydrate_node
 } from '../hydration.js';
 import { queue_micro_task } from '../task.js';
 import { HYDRATION_START_ELSE, UNINITIALIZED } from '../../../../constants.js';
@@ -15,6 +16,7 @@ import { is_runes } from '../../context.js';
 import { Batch, current_batch, flushSync, is_flushing_sync } from '../../reactivity/batch.js';
 import { BranchManager } from './branches.js';
 import { capture, unset_context } from '../../reactivity/async.js';
+import { DEV } from 'esm-env';
 
 const PENDING = 0;
 const THEN = 1;
@@ -42,16 +44,16 @@ export function await_block(node, get_input, pending_fn, then_fn, catch_fn) {
 	var value = runes ? source(v) : mutable_source(v, false, false);
 	var error = runes ? source(v) : mutable_source(v, false, false);
 
+	if (DEV) {
+		value.label = '{#await ...} value';
+		error.label = '{#await ...} error';
+	}
+
 	var branches = new BranchManager(node);
 
 	block(() => {
 		var batch = /** @type {Batch} */ (current_batch);
-
-		// we null out `current_batch` because otherwise `save(...)` will incorrectly restore it —
-		// the batch will already have been committed by the time it resolves
-		batch.deactivate();
 		var input = get_input();
-		batch.activate();
 
 		var destroyed = false;
 
@@ -79,15 +81,17 @@ export function await_block(node, get_input, pending_fn, then_fn, catch_fn) {
 				// We don't want to restore the previous batch here; {#await} blocks don't follow the async logic
 				// we have elsewhere, instead pending/resolve/fail states are each their own batch so to speak.
 				restore(false);
+				// ...but it might still be set here. That means a `save(...)` has restored it — but that batch will
+				// likely already have been committed by the time it resolves, and this resolve should be processed
+				// in a separate batch. We're not using batch.deactivate()/activate() above because get_input()
+				// could write to sources, which would then incorrectly create a new batch or could mess with
+				// async_derived expecting a current_batch to exist.
+				if (current_batch === batch) {
+					batch.deactivate();
+				}
 				// Make sure we have a batch, since the branch manager expects one to exist
 				Batch.ensure();
 
-				if (hydrating) {
-					// `restore()` could set `hydrating` to `true`, which we very much
-					// don't want — we want to restore everything _except_ this
-					set_hydrating(false);
-				}
-
 				try {
 					fn();
 				} finally {
diff --git a/packages/svelte/src/internal/client/dom/blocks/boundary.js b/packages/svelte/src/internal/client/dom/blocks/boundary.js
index 8a9ffccc18..93826a7561 100644
--- a/packages/svelte/src/internal/client/dom/blocks/boundary.js
+++ b/packages/svelte/src/internal/client/dom/blocks/boundary.js
@@ -29,7 +29,7 @@ import { queue_micro_task } from '../task.js';
 import * as e from '../../errors.js';
 import * as w from '../../warnings.js';
 import { DEV } from 'esm-env';
-import { Batch, current_batch, schedule_effect } from '../../reactivity/batch.js';
+import { Batch, current_batch } from '../../reactivity/batch.js';
 import { internal_set, source } from '../../reactivity/sources.js';
 import { tag } from '../../dev/tracing.js';
 import { createSubscriber } from '../../../../reactivity/create-subscriber.js';
@@ -38,9 +38,9 @@ import { defer_effect } from '../../reactivity/utils.js';
 
 /**
  * @typedef {{
- * 	 onerror?: (error: unknown, reset: () => void) => void;
- *   failed?: (anchor: Node, error: () => unknown, reset: () => () => void) => void;
- *   pending?: (anchor: Node) => void;
+ * 	 onerror?: ((error: unknown, reset: () => void) => void) | null;
+ *   failed?: ((anchor: Node, error: () => unknown, reset: () => () => void) => void) | null;
+ *   pending?: ((anchor: Node) => void) | null;
  * }} BoundaryProps
  */
 
@@ -376,15 +376,29 @@ export class Boundary {
 
 	/** @param {unknown} error */
 	error(error) {
-		var onerror = this.#props.onerror;
-		let failed = this.#props.failed;
-
 		// If we have nothing to capture the error, or if we hit an error while
 		// rendering the fallback, re-throw for another boundary to handle
-		if (!onerror && !failed) {
+		if (!this.#props.onerror && !this.#props.failed) {
 			throw error;
 		}
 
+		if (current_batch?.is_fork) {
+			if (this.#main_effect) current_batch.skip_effect(this.#main_effect);
+			if (this.#pending_effect) current_batch.skip_effect(this.#pending_effect);
+			if (this.#failed_effect) current_batch.skip_effect(this.#failed_effect);
+
+			current_batch.on_fork_commit(() => {
+				this.#handle_error(error);
+			});
+		} else {
+			this.#handle_error(error);
+		}
+	}
+
+	/**
+	 * @param {unknown} error
+	 */
+	#handle_error(error) {
 		if (this.#main_effect) {
 			destroy_effect(this.#main_effect);
 			this.#main_effect = null;
@@ -406,6 +420,8 @@ export class Boundary {
 			set_hydrate_node(skip_nodes());
 		}
 
+		var onerror = this.#props.onerror;
+		let failed = this.#props.failed;
 		var did_reset = false;
 		var calling_on_error = false;
 
diff --git a/packages/svelte/src/internal/client/dom/blocks/branches.js b/packages/svelte/src/internal/client/dom/blocks/branches.js
index a8096e0a58..33c34f58bb 100644
--- a/packages/svelte/src/internal/client/dom/blocks/branches.js
+++ b/packages/svelte/src/internal/client/dom/blocks/branches.js
@@ -7,8 +7,10 @@ import {
 	pause_effect,
 	resume_effect
 } from '../../reactivity/effects.js';
+import { HMR_ANCHOR } from '../../constants.js';
 import { hydrate_node, hydrating } from '../hydration.js';
 import { create_text, should_defer_append } from '../operations.js';
+import { DEV } from 'esm-env';
 
 /**
  * @typedef {{ effect: Effect, fragment: DocumentFragment }} Branch
@@ -91,6 +93,12 @@ export class BranchManager {
 				this.#onscreen.set(key, offscreen.effect);
 				this.#offscreen.delete(key);
 
+				if (DEV) {
+					// Tell hmr.js about the anchor it should use for updates,
+					// since the initial one will be removed
+					/** @type {any} */ (offscreen.fragment.lastChild)[HMR_ANCHOR] = this.anchor;
+				}
+
 				// remove the anchor...
 				/** @type {TemplateNode} */ (offscreen.fragment.lastChild).remove();
 
diff --git a/packages/svelte/src/internal/client/dom/blocks/svelte-head.js b/packages/svelte/src/internal/client/dom/blocks/svelte-head.js
index 7cab6c3385..5721f7b056 100644
--- a/packages/svelte/src/internal/client/dom/blocks/svelte-head.js
+++ b/packages/svelte/src/internal/client/dom/blocks/svelte-head.js
@@ -1,8 +1,8 @@
 /** @import { TemplateNode } from '#client' */
 import { hydrate_node, hydrating, set_hydrate_node, set_hydrating } from '../hydration.js';
 import { create_text, get_first_child, get_next_sibling } from '../operations.js';
-import { block } from '../../reactivity/effects.js';
-import { COMMENT_NODE, EFFECT_PRESERVED, HEAD_EFFECT } from '#client/constants';
+import { block, branch } from '../../reactivity/effects.js';
+import { COMMENT_NODE, HEAD_EFFECT } from '#client/constants';
 
 /**
  * @param {string} hash
@@ -49,9 +49,10 @@ export function head(hash, render_fn) {
 	}
 
 	try {
-		// normally a branch is the child of a block and would have the EFFECT_PRESERVED flag,
-		// but since head blocks don't necessarily only have direct branch children we add it on the block itself
-		block(() => render_fn(anchor), HEAD_EFFECT | EFFECT_PRESERVED);
+		block(() => {
+			var e = branch(() => render_fn(anchor));
+			e.f |= HEAD_EFFECT;
+		});
 	} finally {
 		if (was_hydrating) {
 			set_hydrating(true);
diff --git a/packages/svelte/src/internal/client/dom/elements/attributes.js b/packages/svelte/src/internal/client/dom/elements/attributes.js
index a15fc48596..a193a70dd5 100644
--- a/packages/svelte/src/internal/client/dom/elements/attributes.js
+++ b/packages/svelte/src/internal/client/dom/elements/attributes.js
@@ -5,7 +5,12 @@ import { get_descriptors, get_prototype_of } from '../../../shared/utils.js';
 import { create_event, delegate, delegated, event, event_symbol } from './events.js';
 import { add_form_reset_listener, autofocus } from './misc.js';
 import * as w from '../../warnings.js';
-import { IS_XHTML, LOADING_ATTR_SYMBOL } from '#client/constants';
+import {
+	ATTRIBUTES_CACHE,
+	FORM_RESET_HANDLER,
+	IS_XHTML,
+	LOADING_ATTR_SYMBOL
+} from '#client/constants';
 import { queue_micro_task } from '../task.js';
 import { is_capture_event, can_delegate_event, normalize_attribute } from '../../../../utils.js';
 import {
@@ -69,8 +74,7 @@ export function remove_input_defaults(input) {
 		}
 	};
 
-	// @ts-expect-error
-	input.__on_r = remove_defaults;
+	/** @type {any} */ (input)[FORM_RESET_HANDLER] = remove_defaults;
 	queue_micro_task(remove_defaults);
 	add_form_reset_listener();
 }
@@ -561,8 +565,7 @@ export function attribute_effect(
  */
 function get_attributes(element) {
 	return /** @type {Record<string | symbol, unknown>} **/ (
-		// @ts-expect-error
-		element.__attributes ??= {
+		/** @type {any} */ (element)[ATTRIBUTES_CACHE] ??= {
 			[IS_CUSTOM_ELEMENT]: element.nodeName.includes('-'),
 			[IS_HTML]: element.namespaceURI === NAMESPACE_HTML
 		}
@@ -583,13 +586,19 @@ function get_setters(element) {
 	var proto = element; // In the case of custom elements there might be setters on the instance
 	var element_proto = Element.prototype;
 
-	// Stop at Element, from there on there's only unnecessary setters we're not interested in
-	// Do not use contructor.name here as that's unreliable in some browser environments
+	// Stop at Element, from there on there's only unnecessary (and dangerous, like innerHTML) setters we're not interested in
+	// Do not use constructor.name here as that's unreliable in some browser environments
 	while (element_proto !== proto) {
 		descriptors = get_descriptors(proto);
 
 		for (var key in descriptors) {
-			if (descriptors[key].set) {
+			if (
+				descriptors[key].set &&
+				// better safe than sorry, we don't want spread attributes to mess with HTML content
+				key !== 'innerHTML' &&
+				key !== 'textContent' &&
+				key !== 'innerText'
+			) {
 				setters.push(key);
 			}
 		}
diff --git a/packages/svelte/src/internal/client/dom/elements/bindings/shared.js b/packages/svelte/src/internal/client/dom/elements/bindings/shared.js
index aa083776a5..303890adec 100644
--- a/packages/svelte/src/internal/client/dom/elements/bindings/shared.js
+++ b/packages/svelte/src/internal/client/dom/elements/bindings/shared.js
@@ -5,6 +5,7 @@ import {
 	set_active_effect,
 	set_active_reaction
 } from '../../../runtime.js';
+import { FORM_RESET_HANDLER } from '../../../constants.js';
 import { add_form_reset_listener } from '../misc.js';
 
 /**
@@ -58,18 +59,15 @@ export function without_reactive_context(fn) {
  */
 export function listen_to_event_and_reset_event(element, event, handler, on_reset = handler) {
 	element.addEventListener(event, () => without_reactive_context(handler));
-	// @ts-expect-error
-	const prev = element.__on_r;
+	const prev = /** @type {any} */ (element)[FORM_RESET_HANDLER];
 	if (prev) {
 		// special case for checkbox that can have multiple binds (group & checked)
-		// @ts-expect-error
-		element.__on_r = () => {
+		/** @type {any} */ (element)[FORM_RESET_HANDLER] = () => {
 			prev();
 			on_reset(true);
 		};
 	} else {
-		// @ts-expect-error
-		element.__on_r = () => on_reset(true);
+		/** @type {any} */ (element)[FORM_RESET_HANDLER] = () => on_reset(true);
 	}
 
 	add_form_reset_listener();
diff --git a/packages/svelte/src/internal/client/dom/elements/bindings/this.js b/packages/svelte/src/internal/client/dom/elements/bindings/this.js
index c39ca34062..52f0c213d3 100644
--- a/packages/svelte/src/internal/client/dom/elements/bindings/this.js
+++ b/packages/svelte/src/internal/client/dom/elements/bindings/this.js
@@ -40,7 +40,7 @@ export function bind_this(element_or_component = {}, update, get_value, get_part
 			parts = get_parts?.() || [];
 
 			untrack(() => {
-				if (element_or_component !== get_value(...parts)) {
+				if (!is_bound_this(get_value(...parts), element_or_component)) {
 					update(element_or_component, ...parts);
 					// If this is an effect rerun (cause: each block context changes), then nullify the binding at
 					// the previous position if it isn't already taken over by a different effect.
diff --git a/packages/svelte/src/internal/client/dom/elements/class.js b/packages/svelte/src/internal/client/dom/elements/class.js
index 038ce33f3e..6478707095 100644
--- a/packages/svelte/src/internal/client/dom/elements/class.js
+++ b/packages/svelte/src/internal/client/dom/elements/class.js
@@ -1,4 +1,5 @@
 import { to_class } from '../../../shared/attributes.js';
+import { CLASS_CACHE } from '../../constants.js';
 import { hydrating } from '../hydration.js';
 
 /**
@@ -11,8 +12,7 @@ import { hydrating } from '../hydration.js';
  * @returns {Record<string, boolean> | undefined}
  */
 export function set_class(dom, is_html, value, hash, prev_classes, next_classes) {
-	// @ts-expect-error need to add __className to patched prototype
-	var prev = dom.__className;
+	var prev = /** @type {any} */ (dom)[CLASS_CACHE];
 
 	if (
 		hydrating ||
@@ -35,8 +35,7 @@ export function set_class(dom, is_html, value, hash, prev_classes, next_classes)
 			}
 		}
 
-		// @ts-expect-error need to add __className to patched prototype
-		dom.__className = value;
+		/** @type {any} */ (dom)[CLASS_CACHE] = value;
 	} else if (next_classes && prev_classes !== next_classes) {
 		for (var key in next_classes) {
 			var is_present = !!next_classes[key];
diff --git a/packages/svelte/src/internal/client/dom/elements/events.js b/packages/svelte/src/internal/client/dom/elements/events.js
index e598a78949..5aa41e1c4d 100644
--- a/packages/svelte/src/internal/client/dom/elements/events.js
+++ b/packages/svelte/src/internal/client/dom/elements/events.js
@@ -237,9 +237,9 @@ export function handle_event_propagation(event) {
 	});
 
 	// This started because of Chromium issue https://chromestatus.com/feature/5128696823545856,
-	// where removal or moving of of the DOM can cause sync `blur` events to fire, which can cause logic
+	// where removal or moving of the DOM can cause sync `blur` events to fire, which can cause logic
 	// to run inside the current `active_reaction`, which isn't what we want at all. However, on reflection,
-	// it's probably best that all event handled by Svelte have this behaviour, as we don't really want
+	// it's probably best that all events handled by Svelte have this behaviour, as we don't really want
 	// an event handler to run in the context of another reaction or effect.
 	var previous_reaction = active_reaction;
 	var previous_effect = active_effect;
diff --git a/packages/svelte/src/internal/client/dom/elements/misc.js b/packages/svelte/src/internal/client/dom/elements/misc.js
index f350d1df8c..ad34ab9c1d 100644
--- a/packages/svelte/src/internal/client/dom/elements/misc.js
+++ b/packages/svelte/src/internal/client/dom/elements/misc.js
@@ -1,6 +1,7 @@
 import { hydrating } from '../hydration.js';
 import { clear_text_content, get_first_child } from '../operations.js';
 import { queue_micro_task } from '../task.js';
+import { FORM_RESET_HANDLER } from '../../constants.js';
 
 /**
  * @param {HTMLElement} dom
@@ -45,8 +46,7 @@ export function add_form_reset_listener() {
 				Promise.resolve().then(() => {
 					if (!evt.defaultPrevented) {
 						for (const e of /**@type {HTMLFormElement} */ (evt.target).elements) {
-							// @ts-expect-error
-							e.__on_r?.();
+							/** @type {any} */ (e)[FORM_RESET_HANDLER]?.();
 						}
 					}
 				});
diff --git a/packages/svelte/src/internal/client/dom/elements/style.js b/packages/svelte/src/internal/client/dom/elements/style.js
index 3e05eec30e..740c225f29 100644
--- a/packages/svelte/src/internal/client/dom/elements/style.js
+++ b/packages/svelte/src/internal/client/dom/elements/style.js
@@ -1,4 +1,5 @@
 import { to_style } from '../../../shared/attributes.js';
+import { STYLE_CACHE } from '../../constants.js';
 import { hydrating } from '../hydration.js';
 
 /**
@@ -28,8 +29,7 @@ function update_styles(dom, prev = {}, next, priority) {
  * @param {Record<string, any> | [Record<string, any>, Record<string, any>]} [next_styles]
  */
 export function set_style(dom, value, prev_styles, next_styles) {
-	// @ts-expect-error
-	var prev = dom.__style;
+	var prev = /** @type {any} */ (dom)[STYLE_CACHE];
 
 	if (hydrating || prev !== value) {
 		var next_style_attr = to_style(value, next_styles);
@@ -42,8 +42,7 @@ export function set_style(dom, value, prev_styles, next_styles) {
 			}
 		}
 
-		// @ts-expect-error
-		dom.__style = value;
+		/** @type {any} */ (dom)[STYLE_CACHE] = value;
 	} else if (next_styles) {
 		if (Array.isArray(next_styles)) {
 			update_styles(dom, prev_styles?.[0], next_styles[0]);
diff --git a/packages/svelte/src/internal/client/dom/elements/transitions.js b/packages/svelte/src/internal/client/dom/elements/transitions.js
index 0c5431f030..7c4d385807 100644
--- a/packages/svelte/src/internal/client/dom/elements/transitions.js
+++ b/packages/svelte/src/internal/client/dom/elements/transitions.js
@@ -115,10 +115,17 @@ export function animation(element, get_fn, get_params) {
 			) {
 				const options = get_fn()(this.element, { from, to }, get_params?.());
 
-				animation = animate(this.element, options, undefined, 1, () => {
-					animation?.abort();
-					animation = undefined;
-				});
+				animation = animate(
+					this.element,
+					options,
+					undefined,
+					1,
+					() => {},
+					() => {
+						animation?.abort();
+						animation = undefined;
+					}
+				);
 			}
 		},
 		fix() {
@@ -239,15 +246,24 @@ export function transition(flags, element, get_fn, get_params) {
 				intro?.abort();
 			}
 
-			intro = animate(element, get_options(), outro, 1, () => {
-				dispatch_event(element, 'introend');
-
-				// Ensure we cancel the animation to prevent leaking
-				intro?.abort();
-				intro = current_options = undefined;
-
-				element.style.overflow = overflow;
-			});
+			intro = animate(
+				element,
+				get_options(),
+				outro,
+				1,
+				() => {
+					dispatch_event(element, 'introstart');
+				},
+				() => {
+					dispatch_event(element, 'introend');
+
+					// Ensure we cancel the animation to prevent leaking
+					intro?.abort();
+					intro = current_options = undefined;
+
+					element.style.overflow = overflow;
+				}
+			);
 		},
 		out(fn) {
 			if (!is_outro) {
@@ -258,10 +274,19 @@ export function transition(flags, element, get_fn, get_params) {
 
 			element.inert = true;
 
-			outro = animate(element, get_options(), intro, 0, () => {
-				dispatch_event(element, 'outroend');
-				fn?.();
-			});
+			outro = animate(
+				element,
+				get_options(),
+				intro,
+				0,
+				() => {
+					dispatch_event(element, 'outrostart');
+				},
+				() => {
+					dispatch_event(element, 'outroend');
+					fn?.();
+				}
+			);
 		},
 		stop: () => {
 			intro?.abort();
@@ -306,10 +331,11 @@ export function transition(flags, element, get_fn, get_params) {
  * @param {AnimationConfig | ((opts: { direction: 'in' | 'out' }) => AnimationConfig)} options
  * @param {Animation | undefined} counterpart The corresponding intro/outro to this outro/intro
  * @param {number} t2 The target `t` value — `1` for intro, `0` for outro
+ * @param {(() => void)} on_begin Called just before beginning the animation
  * @param {(() => void)} on_finish Called after successfully completing the animation
  * @returns {Animation}
  */
-function animate(element, options, counterpart, t2, on_finish) {
+function animate(element, options, counterpart, t2, on_begin, on_finish) {
 	var is_intro = t2 === 1;
 
 	if (is_function(options)) {
@@ -323,7 +349,7 @@ function animate(element, options, counterpart, t2, on_finish) {
 		queue_micro_task(() => {
 			if (aborted) return;
 			var o = options({ direction: is_intro ? 'in' : 'out' });
-			a = animate(element, o, counterpart, t2, on_finish);
+			a = animate(element, o, counterpart, t2, on_begin, on_finish);
 		});
 
 		// ...but we want to do so without using `async`/`await` everywhere, so
@@ -342,7 +368,7 @@ function animate(element, options, counterpart, t2, on_finish) {
 	counterpart?.deactivate();
 
 	if (!options?.duration && !options?.delay) {
-		dispatch_event(element, is_intro ? 'introstart' : 'outrostart');
+		on_begin();
 		on_finish();
 
 		return {
@@ -382,7 +408,7 @@ function animate(element, options, counterpart, t2, on_finish) {
 		// remove dummy animation from the stack to prevent conflict with main animation
 		animation.cancel();
 
-		dispatch_event(element, is_intro ? 'introstart' : 'outrostart');
+		on_begin();
 
 		// for bidirectional transitions, we start from the current position,
 		// rather than doing a full intro/outro
diff --git a/packages/svelte/src/internal/client/dom/operations.js b/packages/svelte/src/internal/client/dom/operations.js
index 4036aa2d61..f6d05162ca 100644
--- a/packages/svelte/src/internal/client/dom/operations.js
+++ b/packages/svelte/src/internal/client/dom/operations.js
@@ -5,7 +5,14 @@ import { init_array_prototype_warnings } from '../dev/equality.js';
 import { get_descriptor, is_extensible } from '../../shared/utils.js';
 import { active_effect } from '../runtime.js';
 import { async_mode_flag } from '../../flags/index.js';
-import { TEXT_NODE, REACTION_RAN } from '#client/constants';
+import {
+	ATTRIBUTES_CACHE,
+	CLASS_CACHE,
+	REACTION_RAN,
+	STYLE_CACHE,
+	TEXT_CACHE,
+	TEXT_NODE
+} from '#client/constants';
 import { eager_block_effects } from '../reactivity/batch.js';
 import { NAMESPACE_HTML } from '../../../constants.js';
 
@@ -48,21 +55,15 @@ export function init_operations() {
 
 	if (is_extensible(element_prototype)) {
 		// the following assignments improve perf of lookups on DOM nodes
-		// @ts-expect-error
-		element_prototype.__click = undefined;
-		// @ts-expect-error
-		element_prototype.__className = undefined;
-		// @ts-expect-error
-		element_prototype.__attributes = null;
-		// @ts-expect-error
-		element_prototype.__style = undefined;
+		/** @type {any} */ (element_prototype)[CLASS_CACHE] = undefined;
+		/** @type {any} */ (element_prototype)[ATTRIBUTES_CACHE] = null;
+		/** @type {any} */ (element_prototype)[STYLE_CACHE] = undefined;
 		// @ts-expect-error
 		element_prototype.__e = undefined;
 	}
 
 	if (is_extensible(text_prototype)) {
-		// @ts-expect-error
-		text_prototype.__t = undefined;
+		/** @type {any} */ (text_prototype)[TEXT_CACHE] = undefined;
 	}
 
 	if (DEV) {
diff --git a/packages/svelte/src/internal/client/reactivity/async.js b/packages/svelte/src/internal/client/reactivity/async.js
index b5a5989fac..32046badf5 100644
--- a/packages/svelte/src/internal/client/reactivity/async.js
+++ b/packages/svelte/src/internal/client/reactivity/async.js
@@ -71,33 +71,35 @@ export function flatten(blockers, sync, async, fn) {
 	 * @param {Source[]} async
 	 */
 	function finish(async) {
+		if ((parent.f & DESTROYED) !== 0) {
+			return;
+		}
+
 		restore();
 
 		try {
 			fn([...deriveds, ...async]);
 		} catch (error) {
-			if ((parent.f & DESTROYED) === 0) {
-				invoke_error_boundary(error, parent);
-			}
+			invoke_error_boundary(error, parent);
 		}
 
 		unset_context();
 	}
 
+	var decrement_pending = increment_pending();
+
 	// Fast path: blockers but no async expressions
 	if (async.length === 0) {
-		/** @type {Promise<any>} */ (blocker_promise).then(() => finish([]));
+		/** @type {Promise<any>} */ (blocker_promise).then(() => finish([])).finally(decrement_pending);
 		return;
 	}
 
-	var decrement_pending = increment_pending();
-
 	// Full path: has async expressions
 	function run() {
 		Promise.all(async.map((expression) => async_derived(expression)))
 			.then(finish)
 			.catch((error) => invoke_error_boundary(error, parent))
-			.finally(() => decrement_pending());
+			.finally(decrement_pending);
 	}
 
 	if (blocker_promise) {
@@ -180,10 +182,26 @@ export async function save(promise) {
  */
 export async function track_reactivity_loss(promise) {
 	var previous_async_effect = reactivity_loss_tracker;
+	// Ensure that unrelated reads after an async operation is kicked off don't cause false positives
+	queueMicrotask(() => {
+		if (reactivity_loss_tracker === previous_async_effect) {
+			set_reactivity_loss_tracker(null);
+		}
+	});
+
 	var value = await promise;
 
 	return () => {
 		set_reactivity_loss_tracker(previous_async_effect);
+		// While this can result in false negatives it also guards against the more important
+		// false positives that would occur if this is the last in a chain of async operations,
+		// and the reactivity_loss_tracker would then stay around until the next async operation happens.
+		queueMicrotask(() => {
+			if (reactivity_loss_tracker === previous_async_effect) {
+				set_reactivity_loss_tracker(null);
+			}
+		});
+
 		return value;
 	};
 }
@@ -213,20 +231,35 @@ export async function* for_await_track_reactivity_loss(iterable) {
 		throw new TypeError('value is not async iterable');
 	}
 
-	/** Whether the completion of the iterator was "normal", meaning it wasn't ended via `break` or a similar method */
-	let normal_completion = false;
+	// eslint-disable-next-line no-useless-assignment
+	let invoke_return = true;
+
 	try {
 		while (true) {
 			const { done, value } = (await track_reactivity_loss(iterator.next()))();
 			if (done) {
-				normal_completion = true;
+				invoke_return = false;
 				break;
 			}
-			yield value;
+			var prev = reactivity_loss_tracker;
+			try {
+				yield value;
+			} catch (e) {
+				set_reactivity_loss_tracker(prev);
+				// If the yield throws, we need to call `return` but not return its value, instead rethrow
+				if (iterator.return !== undefined) {
+					(await track_reactivity_loss(iterator.return()))();
+				}
+				throw e;
+			}
+			set_reactivity_loss_tracker(prev);
 		}
+	} catch (error) {
+		invoke_return = false;
+		throw error;
 	} finally {
-		// If the iterator had an abrupt completion and `return` is defined on the iterator, call it and return the value
-		if (!normal_completion && iterator.return !== undefined) {
+		// If the iterator had an abrupt completion (break) and `return` is defined on the iterator, call it and return the value
+		if (invoke_return && iterator.return !== undefined) {
 			// eslint-disable-next-line no-unsafe-finally
 			return /** @type {TReturn} */ ((await track_reactivity_loss(iterator.return()))().value);
 		}
@@ -281,16 +314,23 @@ export function run(thunks) {
 	for (const fn of thunks.slice(1)) {
 		promise = promise
 			.then(() => {
-				if (errored) {
-					throw errored.error;
-				}
+				restore();
 
-				if (aborted(active)) {
-					throw STALE_REACTION;
-				}
+				try {
+					if (errored) {
+						throw errored.error;
+					}
 
-				restore();
-				return fn();
+					if (aborted(active)) {
+						throw STALE_REACTION;
+					}
+
+					return fn();
+				} finally {
+					// We gotta unset context directly in case the function returns a promise, in which case
+					// unset_context in .finally() would be too late ...
+					unset_context();
+				}
 			})
 			.catch(handle_error);
 
@@ -299,6 +339,7 @@ export function run(thunks) {
 
 		promise.finally(() => {
 			blocker.settled = true;
+			// ... but we also need it after such a promise has resolved in case it restores our context
 			unset_context();
 		});
 	}
@@ -307,7 +348,7 @@ export function run(thunks) {
 		// wait one more tick, so that template effects are
 		// guaranteed to run before `$effect(...)`
 		.then(() => Promise.resolve())
-		.finally(() => decrement_pending());
+		.finally(decrement_pending);
 
 	return blockers;
 }
@@ -331,8 +372,8 @@ export function increment_pending() {
 	boundary.update_pending_count(1, batch);
 	batch.increment(blocking, effect);
 
-	return (skip = false) => {
+	return () => {
 		boundary.update_pending_count(-1, batch);
-		batch.decrement(blocking, effect, skip);
+		batch.decrement(blocking, effect);
 	};
 }
diff --git a/packages/svelte/src/internal/client/reactivity/batch.js b/packages/svelte/src/internal/client/reactivity/batch.js
index 31ce8fe46c..895b752ed8 100644
--- a/packages/svelte/src/internal/client/reactivity/batch.js
+++ b/packages/svelte/src/internal/client/reactivity/batch.js
@@ -15,7 +15,8 @@ import {
 	ERROR_VALUE,
 	MANAGED_EFFECT,
 	REACTION_RAN,
-	STATE_EAGER_EFFECT
+	STATE_EAGER_EFFECT,
+	DESTROYING
 } from '#client/constants';
 import { async_mode_flag } from '../../flags/index.js';
 import { deferred, define_property, includes } from '../../shared/utils.js';
@@ -40,14 +41,17 @@ import {
 	source,
 	update
 } from './sources.js';
-import { eager_effect, unlink_effect } from './effects.js';
+import { eager_effect, teardown, unlink_effect } from './effects.js';
 import { defer_effect } from './utils.js';
 import { UNINITIALIZED } from '../../../constants.js';
 import { legacy_is_updating_store } from './store.js';
 import { invariant } from '../../shared/dev.js';
 
-/** @type {Set<Batch>} */
-const batches = new Set();
+/** @type {Batch | null} */
+let first_batch = null;
+
+/** @type {Batch | null} */
+let last_batch = null;
 
 /** @type {Batch | null} */
 export let current_batch = null;
@@ -91,13 +95,29 @@ export let collected_effects = null;
 export let legacy_updates = null;
 
 var flush_count = 0;
-var source_stacks = DEV ? new Set() : null;
+
+/** @type {Set<Value>} */
+var source_stacks = new Set();
 
 let uid = 1;
 
 export class Batch {
 	id = uid++;
 
+	/** True as soon as `#process` was called */
+	#started = false;
+
+	linked = true;
+
+	/** @type {Batch | null} */
+	#prev = null;
+
+	/** @type {Batch | null} */
+	#next = null;
+
+	/** @type {Map<Effect, ReturnType<typeof deferred<any>>>} */
+	async_deriveds = new Map();
+
 	/**
 	 * The current values of any signals that are updated in this batch.
 	 * Tuple format: [value, is_derived] (note: is_derived is false for deriveds, too, if they were overridden via assignment)
@@ -136,10 +156,15 @@ export class Batch {
 	#discard_callbacks = new Set();
 
 	/**
-	 * Async effects that are currently in flight
-	 * @type {Map<Effect, number>}
+	 * Callbacks that should run only when a fork is committed.
+	 * @type {Set<(batch: Batch) => void>}
 	 */
-	#pending = new Map();
+	#fork_commit_callbacks = new Set();
+
+	/**
+	 * The number of async effects that are currently in flight
+	 */
+	#pending = 0;
 
 	/**
 	 * Async effects that are currently in flight, _not_ inside a pending boundary
@@ -184,35 +209,34 @@ export class Batch {
 	 */
 	#skipped_branches = new Map();
 
+	/**
+	 * Inverse of #skipped_branches which we need to tell prior batches to unskip them when committing
+	 * @type {Set<Effect>}
+	 */
+	#unskipped_branches = new Set();
+
 	is_fork = false;
 
 	#decrement_queued = false;
 
-	/** @type {Set<Batch>} */
-	#blockers = new Set();
-
 	#is_deferred() {
-		return this.is_fork || this.#blocking_pending.size > 0;
-	}
+		if (this.is_fork) return true;
 
-	#is_blocked() {
-		for (const batch of this.#blockers) {
-			for (const effect of batch.#blocking_pending.keys()) {
-				var skipped = false;
-				var e = effect;
+		for (const effect of this.#blocking_pending.keys()) {
+			var e = effect;
+			var skipped = false;
 
-				while (e.parent !== null) {
-					if (this.#skipped_branches.has(e)) {
-						skipped = true;
-						break;
-					}
-
-					e = e.parent;
+			while (e.parent !== null) {
+				if (this.#skipped_branches.has(e)) {
+					skipped = true;
+					break;
 				}
 
-				if (!skipped) {
-					return true;
-				}
+				e = e.parent;
+			}
+
+			if (!skipped) {
+				return true;
 			}
 		}
 
@@ -227,35 +251,39 @@ export class Batch {
 		if (!this.#skipped_branches.has(effect)) {
 			this.#skipped_branches.set(effect, { d: [], m: [] });
 		}
+		this.#unskipped_branches.delete(effect);
 	}
 
 	/**
 	 * Remove an effect from the #skipped_branches map and reschedule
 	 * any tracked dirty/maybe_dirty child effects
 	 * @param {Effect} effect
+	 * @param {(e: Effect) => void} callback
 	 */
-	unskip_effect(effect) {
+	unskip_effect(effect, callback = (e) => this.schedule(e)) {
 		var tracked = this.#skipped_branches.get(effect);
 		if (tracked) {
 			this.#skipped_branches.delete(effect);
 
 			for (var e of tracked.d) {
-				this.schedule(e);
+				callback(e);
 			}
 
 			for (e of tracked.m) {
-				this.schedule(e);
+				callback(e);
 			}
 		}
+		this.#unskipped_branches.add(effect);
 	}
 
 	#process() {
 		if (this.#committed) return;
 
 		current_batch = this;
+		this.#started = true;
 
 		if (flush_count++ > 1000) {
-			batches.delete(this);
+			this.#unlink();
 			infinite_loop_guard();
 		}
 
@@ -264,6 +292,14 @@ export class Batch {
 			mark_reactions(this, source, snapshot.wv, null);
 		}
 
+		if (DEV) {
+			// track all the values that were updated during this flush,
+			// so that they can be reset afterwards
+			for (const value of this.current.keys()) {
+				source_stacks.add(value);
+			}
+		}
+
 		// we only reschedule previously-deferred effects if we expect
 		// to be able to run them after processing the batch
 		if (!this.#is_deferred()) {
@@ -311,61 +347,77 @@ export class Batch {
 		collected_effects = null;
 		legacy_updates = null;
 
-		if (this.#is_deferred() || this.#is_blocked()) {
+		// if the batch has outstanding pending work, stash effects and bail
+		if (this.#is_deferred()) {
 			this.#defer_effects(render_effects);
 			this.#defer_effects(effects);
 
 			for (const [e, t] of this.#skipped_branches) {
 				reset_branch(e, t);
 			}
-		} else {
-			if (this.#pending.size === 0) {
-				batches.delete(this);
+
+			if (updates.length > 0) {
+				/** @type {Batch} */ (/** @type {unknown} */ (current_batch)).#process();
 			}
 
-			// clear effects. Those that are still needed will be rescheduled through unskipping the skipped branches.
-			this.#dirty_effects.clear();
+			return;
+		}
+
+		const earlier_batch = this.#find_earlier_batch();
 
-			// append/remove branches
-			for (const fn of this.#commit_callbacks) fn(this);
-			this.#commit_callbacks.clear();
+		if (earlier_batch) {
+			earlier_batch.#merge(this);
+			return;
+		}
 
-			previous_batch = this;
+		// clear effects. Those that are still needed will be rescheduled through unskipping the skipped branches.
+		this.#dirty_effects.clear();
 
-			flush_queued_effects(render_effects);
-			flush_queued_effects(effects);
-			previous_batch = null;
+		// append/remove branches
+		for (const fn of this.#commit_callbacks) fn(this);
+		this.#commit_callbacks.clear();
 
-			this.#deferred?.resolve();
-		}
+		previous_batch = this;
+		flush_queued_effects(render_effects);
+		flush_queued_effects(effects);
+		previous_batch = null;
+
+		this.#deferred?.resolve();
 
 		var next_batch = /** @type {Batch | null} */ (/** @type {unknown} */ (current_batch));
 
+		if (this.linked && this.#pending === 0) {
+			this.#unlink();
+		}
+
+		// Order matters here - we need to commit and THEN continue flushing new batches, not the other way around,
+		// else we could start flushing a new batch and then, if it has pending work, rebase it right afterwards, which is wrong.
+		// In sync mode flushSync can cause #commit to wrongfully think that there needs to be a rebase, so we only do it in async mode
+		// TODO fix the underlying cause, otherwise this will likely regress when non-async mode is removed
+		if (async_mode_flag && !this.linked) {
+			this.#commit();
+			// Rebases can activate other batches or null it out, therefore restore the new one here
+			current_batch = next_batch;
+		}
+
 		// Edge case: During traversal new branches might create effects that run immediately and set state,
 		// causing an effect and therefore a root to be scheduled again. We need to traverse the current batch
 		// once more in that case - most of the time this will just clean up dirty branches.
 		if (this.#roots.length > 0) {
-			const batch = (next_batch ??= this);
+			if (next_batch === null) {
+				next_batch = this;
+				this.#link();
+			}
+
+			const batch = next_batch;
 			batch.#roots.push(...this.#roots.filter((r) => !batch.#roots.includes(r)));
 		}
 
 		active_batch = null;
 
 		if (next_batch !== null) {
-			batches.add(next_batch);
-
-			if (DEV) {
-				for (const source of this.current.keys()) {
-					/** @type {Set<Source>} */ (source_stacks).add(source);
-				}
-			}
-
 			next_batch.#process();
 		}
-
-		if (!batches.has(this)) {
-			this.#commit();
-		}
 	}
 
 	/**
@@ -419,6 +471,83 @@ export class Batch {
 		}
 	}
 
+	#find_earlier_batch() {
+		var batch = this.#prev;
+
+		while (batch !== null) {
+			if (!batch.is_fork) {
+				// if the batches are connected, break
+				for (const value of this.current.keys()) {
+					if (batch.current.has(value)) {
+						return batch;
+					}
+				}
+			}
+
+			batch = batch.#prev;
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param {Batch} batch
+	 */
+	#merge(batch) {
+		for (const [source, value] of batch.current) {
+			var previous = batch.previous.get(source);
+
+			if (previous && !this.previous.has(source)) {
+				this.previous.set(source, previous);
+			}
+
+			this.current.set(source, value);
+		}
+
+		for (const [effect, deferred] of batch.async_deriveds) {
+			const d = this.async_deriveds.get(effect);
+			if (d) deferred.promise.then(d.resolve);
+		}
+
+		/**
+		 * mark all effects that depend on `batch.current`, except the
+		 * async effects that we just resolved (TODO unless they depend
+		 * on values in this batch that are NOT in the later batch?).
+		 * Through this we also will populate the correct #skipped_branches,
+		 * oncommit callbacks etc, so we don't need to merge them separately.
+		 * @param {Value} value
+		 */
+		const mark = (value) => {
+			var reactions = value.reactions;
+			if (reactions === null) return;
+
+			for (const reaction of reactions) {
+				var flags = reaction.f;
+
+				if ((flags & DERIVED) !== 0) {
+					mark(/** @type {Derived} */ (reaction));
+				} else {
+					var effect = /** @type {Effect} */ (reaction);
+
+					if (flags & (ASYNC | BLOCK_EFFECT) && !this.async_deriveds.has(effect)) {
+						effect.f ^= ~CLEAN;
+						this.schedule(effect);
+					}
+				}
+			}
+		};
+
+		for (const source of this.current.keys()) {
+			mark(source);
+		}
+
+		this.oncommit(() => batch.discard());
+		batch.#unlink();
+
+		current_batch = this;
+		this.#process();
+	}
+
 	/**
 	 * @param {Effect[]} effects
 	 */
@@ -466,9 +595,11 @@ export class Batch {
 	}
 
 	flush() {
-		var source_stacks = DEV ? new Set() : null;
-
 		try {
+			if (DEV) {
+				source_stacks.clear();
+			}
+
 			is_processing = true;
 			this.#process();
 		} finally {
@@ -484,7 +615,7 @@ export class Batch {
 			old_values.clear();
 
 			if (DEV) {
-				for (const source of /** @type {Set<Source>} */ (source_stacks)) {
+				for (const source of source_stacks) {
 					source.updated = null;
 				}
 			}
@@ -494,8 +625,9 @@ export class Batch {
 	discard() {
 		for (const fn of this.#discard_callbacks) fn(this);
 		this.#discard_callbacks.clear();
+		this.#fork_commit_callbacks.clear();
 
-		batches.delete(this);
+		this.#unlink();
 	}
 
 	/**
@@ -512,11 +644,13 @@ export class Batch {
 		if (this.#committed) return;
 		this.#committed = true;
 
+		this.#unlink();
+
 		// If there are other pending batches, they now need to be 'rebased' —
 		// in other words, we re-run block/async effects with the newly
 		// committed state, unless the batch in question has a more
 		// recent value for a given source
-		for (const batch of batches) {
+		for (let batch = first_batch; batch !== null; batch = batch.#next) {
 			var is_earlier = batch.id < this.id;
 
 			/** @type {Source[]} */
@@ -539,6 +673,17 @@ export class Batch {
 				sources.push(source);
 			}
 
+			if (is_earlier) {
+				// TODO do we need to restart these in some cases, instead of
+				// immediately resolving them? Likely not because of how this.apply() works.
+				for (const [effect, deferred] of this.async_deriveds) {
+					const d = batch.async_deriveds.get(effect);
+					if (d) deferred.promise.then(d.resolve);
+				}
+			}
+
+			if (!batch.#started) continue;
+
 			// Re-run async/block effects that depend on distinct values changed in both batches
 			var others = [...batch.current.keys()].filter((s) => !this.current.has(s));
 
@@ -548,10 +693,25 @@ export class Batch {
 					batch.discard();
 				}
 			} else if (sources.length > 0) {
-				if (DEV) {
+				// The microtask queue can contain the batch already scheduled to run right
+				// after this one is finished, so throwing the invariant would be wrong here.
+				if (DEV && !batch.#decrement_queued) {
 					invariant(batch.#roots.length === 0, 'Batch has scheduled roots');
 				}
 
+				// A batch was unskipped in a later batch -> tell prior batches to unskip it, too
+				if (is_earlier) {
+					for (const unskipped of this.#unskipped_branches) {
+						batch.unskip_effect(unskipped, (e) => {
+							if ((e.f & (BLOCK_EFFECT | ASYNC)) !== 0) {
+								batch.schedule(e);
+							} else {
+								batch.#defer_effects([e]);
+							}
+						});
+					}
+				}
+
 				batch.activate();
 
 				/** @type {Set<Value>} */
@@ -582,7 +742,8 @@ export class Batch {
 				}
 
 				// Only apply and traverse when we know we triggered async work with marking the effects
-				if (batch.#roots.length > 0) {
+				// and know this won't run anyway right afterwards
+				if (batch.#roots.length > 0 && !batch.#decrement_queued) {
 					batch.apply();
 
 					for (var root of batch.#roots) {
@@ -595,17 +756,6 @@ export class Batch {
 				batch.deactivate();
 			}
 		}
-
-		for (const batch of batches) {
-			if (batch.#blockers.has(this)) {
-				batch.#blockers.delete(this);
-
-				if (batch.#blockers.size === 0 && !batch.#is_deferred()) {
-					batch.activate();
-					batch.#process();
-				}
-			}
-		}
 	}
 
 	/**
@@ -613,8 +763,7 @@ export class Batch {
 	 * @param {Effect} effect
 	 */
 	increment(blocking, effect) {
-		let pending_count = this.#pending.get(effect) ?? 0;
-		this.#pending.set(effect, pending_count + 1);
+		this.#pending += 1;
 
 		if (blocking) {
 			let blocking_pending_count = this.#blocking_pending.get(effect) ?? 0;
@@ -625,16 +774,9 @@ export class Batch {
 	/**
 	 * @param {boolean} blocking
 	 * @param {Effect} effect
-	 * @param {boolean} skip - whether to skip updates (because this is triggered by a stale reaction)
 	 */
-	decrement(blocking, effect, skip) {
-		let pending_count = this.#pending.get(effect) ?? 0;
-
-		if (pending_count === 1) {
-			this.#pending.delete(effect);
-		} else {
-			this.#pending.set(effect, pending_count - 1);
-		}
+	decrement(blocking, effect) {
+		this.#pending -= 1;
 
 		if (blocking) {
 			let blocking_pending_count = this.#blocking_pending.get(effect) ?? 0;
@@ -646,12 +788,15 @@ export class Batch {
 			}
 		}
 
-		if (this.#decrement_queued || skip) return;
+		if (this.#decrement_queued) return;
 		this.#decrement_queued = true;
 
 		queue_micro_task(() => {
 			this.#decrement_queued = false;
-			this.flush();
+
+			if (this.linked) {
+				this.flush();
+			}
 		});
 	}
 
@@ -676,6 +821,16 @@ export class Batch {
 		this.#discard_callbacks.add(fn);
 	}
 
+	/** @param {(batch: Batch) => void} fn */
+	on_fork_commit(fn) {
+		this.#fork_commit_callbacks.add(fn);
+	}
+
+	run_fork_commit_callbacks() {
+		for (const fn of this.#fork_commit_callbacks) fn(this);
+		this.#fork_commit_callbacks.clear();
+	}
+
 	settled() {
 		return (this.#deferred ??= deferred()).promise;
 	}
@@ -683,20 +838,14 @@ export class Batch {
 	static ensure() {
 		if (current_batch === null) {
 			const batch = (current_batch = new Batch());
+			batch.#link();
 
-			if (!is_processing) {
-				batches.add(current_batch);
-
-				if (!is_flushing_sync) {
-					queue_micro_task(() => {
-						if (current_batch !== batch) {
-							// a flushSync happened in the meantime
-							return;
-						}
-
+			if (!is_processing && !is_flushing_sync) {
+				queue_micro_task(() => {
+					if (!batch.#started) {
 						batch.flush();
-					});
-				}
+					}
+				});
 			}
 		}
 
@@ -716,24 +865,24 @@ export class Batch {
 		// we need to override values with the ones in this batch...
 		this.values = new Map(this.current);
 
-		// ...and undo changes belonging to other batches unless they block this one
-		for (const batch of batches) {
+		// ...and undo changes belonging to other batches unless they intersect
+		for (let batch = first_batch; batch !== null; batch = batch.#next) {
 			if (batch === this || batch.is_fork) continue;
 
-			// A batch is blocked on an earlier batch if it overlaps with the earlier batch's changes but is not a superset
+			// If two batches intersect, the latter batch will be merged into the earlier batch,
+			// and we should treat them as a single set of changes
 			var intersects = false;
-			var differs = false;
 
 			if (batch.id < this.id) {
 				for (const source of batch.current.keys()) {
-					intersects ||= this.current.has(source);
-					differs ||= !this.current.has(source);
+					if (this.current.has(source)) {
+						intersects = true;
+						break;
+					}
 				}
 			}
 
-			if (intersects && differs) {
-				this.#blockers.add(batch);
-			} else {
+			if (!intersects) {
 				for (const [value, snapshot] of batch.previous) {
 					if (!this.values.has(value)) {
 						this.values.set(value, snapshot);
@@ -803,8 +952,39 @@ export class Batch {
 
 		this.#roots.push(e);
 	}
+
+	#link() {
+		if (last_batch === null) {
+			first_batch = last_batch = this;
+		} else {
+			last_batch.#next = this;
+			this.#prev = last_batch;
+		}
+
+		last_batch = this;
+	}
+
+	#unlink() {
+		var prev = this.#prev;
+		var next = this.#next;
+
+		if (prev === null) {
+			first_batch = next;
+		} else {
+			prev.#next = next;
+		}
+
+		if (next === null) {
+			last_batch = prev;
+		} else {
+			next.#prev = prev;
+		}
+
+		this.linked = false;
+	}
 }
 
+// TODO Svelte@6 think about removing the callback argument.
 /**
  * Synchronously flush any pending updates.
  * Returns void if no callback is provided, otherwise returns the result of calling the callback.
@@ -1046,17 +1226,18 @@ let eager_versions = [];
 let running_eager_effect = false;
 
 function eager_flush() {
-	try {
-		flushSync(() => {
-			for (const version of eager_versions) {
-				update(version);
-			}
-		});
-	} finally {
+	flushSync(() => {
+		const eager = eager_versions;
 		eager_versions = [];
-	}
+		for (const version of eager) {
+			update(version);
+		}
+	});
 }
 
+/** @type {Map<Reaction, Source<number>>} */
+var version_map = new Map();
+
 /**
  * Implementation of `$state.eager(fn())`
  * @template T
@@ -1064,10 +1245,22 @@ function eager_flush() {
  * @returns {T}
  */
 export function eager(fn) {
-	var version = source(0);
 	var initial = true;
 	var value = /** @type {T} */ (undefined);
 
+	if (active_reaction === null) {
+		return fn();
+	}
+
+	let parent = active_reaction;
+
+	let version = version_map.get(parent) ?? source(0);
+	version_map.set(parent, version);
+
+	teardown(() => {
+		if (parent.f & DESTROYING) version_map.delete(parent);
+	});
+
 	get(version);
 
 	if (DEV) {
@@ -1196,7 +1389,7 @@ export function fork(fn) {
 				return;
 			}
 
-			if (!batches.has(batch)) {
+			if (!batch.linked) {
 				e.fork_discarded();
 			}
 
@@ -1215,6 +1408,10 @@ export function fork(fn) {
 				value.wv = snapshot.wv;
 			}
 
+			batch.activate();
+			batch.run_fork_commit_callbacks();
+			batch.deactivate();
+
 			// trigger any `$state.eager(...)` expressions with the new state.
 			// eager effects don't get scheduled like other effects, so we
 			// can't just encounter them during traversal, we need to
@@ -1244,7 +1441,7 @@ export function fork(fn) {
 				source.wv = increment_write_version();
 			}
 
-			if (!committed && batches.has(batch)) {
+			if (!committed && batch.linked) {
 				batch.discard();
 			}
 		}
@@ -1283,5 +1480,5 @@ export function set_cv(reaction, cv = write_version) {
  * Forcibly remove all current batches, to prevent cross-talk between tests
  */
 export function clear() {
-	batches.clear();
+	first_batch = last_batch = null;
 }
diff --git a/packages/svelte/src/internal/client/reactivity/deriveds.js b/packages/svelte/src/internal/client/reactivity/deriveds.js
index 7b7f72702c..243284af28 100644
--- a/packages/svelte/src/internal/client/reactivity/deriveds.js
+++ b/packages/svelte/src/internal/client/reactivity/deriveds.js
@@ -1,4 +1,4 @@
-/** @import { Derived, Effect, Source } from '#client' */
+/** @import { Derived, Effect, Reaction, Source, Value } from '#client' */
 /** @import { Batch } from './batch.js'; */
 /** @import { Boundary } from '../dom/blocks/boundary.js'; */
 import { DEV } from 'esm-env';
@@ -12,7 +12,8 @@ import {
 	DESTROYED,
 	REACTION_RAN,
 	CONNECTED,
-	CLEAN
+	CLEAN,
+	INERT
 } from '#client/constants';
 import {
 	active_reaction,
@@ -22,29 +23,33 @@ import {
 	push_reaction_value,
 	update_effect,
 	remove_reactions,
-	write_version
+	write_version,
+	skipped_deps,
+	new_deps,
+	is_destroying_effect,
+	current_sources
 } from '../runtime.js';
 import { equals, safe_equals } from './equality.js';
 import * as e from '../errors.js';
 import * as w from '../warnings.js';
 import { async_effect, destroy_effect, destroy_effect_children, teardown } from './effects.js';
-import { eager_effects, internal_set, set_eager_effects, source } from './sources.js';
+import { eager_effects, internal_set, set_eager_effects, source, state } from './sources.js';
 import { get_error } from '../../shared/dev.js';
 import { async_mode_flag, tracing_mode_flag } from '../../flags/index.js';
 import { component_context } from '../context.js';
 import { UNINITIALIZED } from '../../../constants.js';
-import { current_batch, get_wv, active_batch, set_cv } from './batch.js';
+import { current_batch, get_wv, active_batch, set_cv, previous_batch } from './batch.js';
 import { increment_pending, unset_context } from './async.js';
 import { deferred, noop } from '../../shared/utils.js';
 
 /**
  * This allows us to track 'reactivity loss' that occurs when signals
  * are read after a non-context-restoring `await`. Dev-only
- * @type {{ effect: Effect, warned: boolean } | null}
+ * @type {{ effect: Effect, effect_deps: Set<Value>, warned: boolean } | null}
  */
 export let reactivity_loss_tracker = null;
 
-/** @param {{ effect: Effect, warned: boolean } | null} v */
+/** @param {{ effect: Effect, effect_deps: Set<Value>, warned: boolean } | null} v */
 export function set_reactivity_loss_tracker(v) {
 	reactivity_loss_tracker = v;
 }
@@ -58,11 +63,6 @@ export const recent_async_deriveds = new Set();
  */
 /*#__NO_SIDE_EFFECTS__*/
 export function derived(fn) {
-	var parent_derived =
-		active_reaction !== null && (active_reaction.f & DERIVED) !== 0
-			? /** @type {Derived} */ (active_reaction)
-			: null;
-
 	if (active_effect !== null) {
 		// Since deriveds are evaluated lazily, any effects created inside them are
 		// created too late to ensure that the parent effect is added to the tree
@@ -82,7 +82,7 @@ export function derived(fn) {
 		rv: 0,
 		wv: 0,
 		v: /** @type {V} */ (UNINITIALIZED),
-		parent: parent_derived ?? active_effect,
+		parent: active_effect,
 		ac: null
 	};
 
@@ -93,6 +93,8 @@ export function derived(fn) {
 	return signal;
 }
 
+export const OBSOLETE = Symbol('obsolete');
+
 /**
  * @template V
  * @param {() => V | Promise<V>} fn
@@ -109,26 +111,23 @@ export function async_derived(fn, label, location) {
 	}
 
 	var promise = /** @type {Promise<V>} */ (/** @type {unknown} */ (undefined));
-	var signal = source(/** @type {V} */ (UNINITIALIZED));
+	var signal = state(/** @type {V} */ (UNINITIALIZED));
 
-	if (DEV) signal.label = label ?? '{await ...}';
+	if (DEV) signal.label = label ?? fn.toString();
 
 	// only suspend in async deriveds created on initialisation
 	var should_suspend = !active_reaction;
 
-	/** @type {Map<Batch, ReturnType<typeof deferred<V>>>} */
-	var deferreds = new Map();
+	/** @type {Set<ReturnType<typeof deferred<V>>>} */
+	var deferreds = new Set();
 
 	async_effect(() => {
+		var effect = /** @type {Effect} */ (active_effect);
+
 		if (DEV) {
-			reactivity_loss_tracker = {
-				effect: /** @type {Effect} */ (active_effect),
-				warned: false
-			};
+			reactivity_loss_tracker = { effect, effect_deps: new Set(), warned: false };
 		}
 
-		var effect = /** @type {Effect} */ (active_effect);
-
 		/** @type {ReturnType<typeof deferred<V>>} */
 		var d = deferred();
 		promise = d.promise;
@@ -137,13 +136,37 @@ export function async_derived(fn, label, location) {
 			// If this code is changed at some point, make sure to still access the then property
 			// of fn() to read any signals it might access, so that we track them as dependencies.
 			// We call `unset_context` to undo any `save` calls that happen inside `fn()`
-			Promise.resolve(fn()).then(d.resolve, d.reject).finally(unset_context);
+			Promise.resolve(fn())
+				.then(d.resolve, (e) => {
+					// if the promise was rejected by the user, via `getAbortSignal`, then
+					// wait for a subsequent resolution instead of flushing the batch
+					if (e !== STALE_REACTION) d.reject(e);
+				})
+				.finally(unset_context);
 		} catch (error) {
 			d.reject(error);
 			unset_context();
 		}
 
 		if (DEV) {
+			if (reactivity_loss_tracker) {
+				// Reused deps from previous run (indices 0 to skipped_deps-1)
+				// We deliberately only track direct dependencies of the async expression to encourage
+				// dependencies being directly visible at the point of the expression
+				if (effect.deps !== null) {
+					for (let i = 0; i < skipped_deps; i += 1) {
+						reactivity_loss_tracker.effect_deps.add(effect.deps[i]);
+					}
+				}
+
+				// New deps discovered this run
+				if (new_deps !== null) {
+					for (let i = 0; i < new_deps.length; i += 1) {
+						reactivity_loss_tracker.effect_deps.add(new_deps[i]);
+					}
+				}
+			}
+
 			reactivity_loss_tracker = null;
 		}
 
@@ -158,18 +181,17 @@ export function async_derived(fn, label, location) {
 			}
 
 			if (/** @type {Boundary} */ (parent.b).is_rendered()) {
-				deferreds.get(batch)?.reject(STALE_REACTION);
-				deferreds.delete(batch); // delete to ensure correct order in Map iteration below
+				batch.async_deriveds.get(effect)?.reject(OBSOLETE);
 			} else {
 				// While the boundary is still showing pending, a new run supersedes all older in-flight runs
 				// for this async expression. Cancel eagerly so resolution cannot commit stale values.
 				for (const d of deferreds.values()) {
-					d.reject(STALE_REACTION);
+					d.reject(OBSOLETE);
 				}
-				deferreds.clear();
 			}
 
-			deferreds.set(batch, d);
+			deferreds.add(d);
+			batch.async_deriveds.set(effect, d);
 		}
 
 		/**
@@ -181,16 +203,10 @@ export function async_derived(fn, label, location) {
 				reactivity_loss_tracker = null;
 			}
 
-			if (decrement_pending) {
-				// don't trigger an update if we're only here because
-				// the promise was superseded before it could resolve
-				var skip = error === STALE_REACTION;
-				decrement_pending(skip);
-			}
+			decrement_pending?.();
+			deferreds.delete(d);
 
-			if (error === STALE_REACTION || (effect.f & DESTROYED) !== 0) {
-				return;
-			}
+			if (error === OBSOLETE) return;
 
 			batch.activate();
 
@@ -206,18 +222,11 @@ export function async_derived(fn, label, location) {
 
 				internal_set(signal, value);
 
-				// All prior async derived runs are now stale
-				for (const [b, d] of deferreds) {
-					deferreds.delete(b);
-					if (b === batch) break;
-					d.reject(STALE_REACTION);
-				}
-
 				if (DEV && location !== undefined) {
 					recent_async_deriveds.add(signal);
 
 					setTimeout(() => {
-						if (recent_async_deriveds.has(signal)) {
+						if (recent_async_deriveds.has(signal) && (effect.f & DESTROYED) === 0) {
 							w.await_waterfall(/** @type {string} */ (signal.label), location);
 							recent_async_deriveds.delete(signal);
 						}
@@ -232,8 +241,8 @@ export function async_derived(fn, label, location) {
 	});
 
 	teardown(() => {
-		for (const d of deferreds.values()) {
-			d.reject(STALE_REACTION);
+		for (const d of deferreds) {
+			d.reject(OBSOLETE);
 		}
 	});
 
@@ -312,23 +321,6 @@ export function destroy_derived_effects(derived) {
  */
 export let derived_stack = null;
 
-/**
- * @param {Derived} derived
- * @returns {Effect | null}
- */
-function get_derived_parent_effect(derived) {
-	var parent = derived.parent;
-	while (parent !== null) {
-		if ((parent.f & DERIVED) === 0) {
-			// The original parent effect might've been destroyed but the derived
-			// is used elsewhere now - do not return the destroyed effect in that case
-			return (parent.f & DESTROYED) === 0 ? /** @type {Effect} */ (parent) : null;
-		}
-		parent = parent.parent;
-	}
-	return null;
-}
-
 /**
  * @template T
  * @param {Derived} derived
@@ -337,8 +329,20 @@ function get_derived_parent_effect(derived) {
 export function execute_derived(derived) {
 	var value;
 	var prev_active_effect = active_effect;
+	var parent = derived.parent;
 
-	set_active_effect(get_derived_parent_effect(derived));
+	if (
+		!is_destroying_effect &&
+		parent !== null &&
+		derived.v !== UNINITIALIZED && // if it was never evaluated before, it's guaranteed to fail downstream, so we try to execute instead
+		(parent.f & (DESTROYED | INERT)) !== 0
+	) {
+		w.derived_inert();
+
+		return derived.v;
+	}
+
+	set_active_effect(parent);
 
 	derived_stack ??= [];
 
@@ -396,6 +400,14 @@ export function update_derived(derived) {
 	if (!derived.equals(value)) {
 		if (active_batch !== null) {
 			active_batch.capture(derived, value, write_version);
+
+			// We also write to previous_batch because if it exists, it is a sign that we're
+			// currently in the process of flushing effects. These updates to deriveds may belong
+			// to the previous batch, not the new one (which can already exist if an earlier
+			// effect wrote to a source). This can cause bugs when running batch.#commit() later,
+			// but not adding it to current_batch can, too, so we add it to both.
+			// See https://github.com/sveltejs/svelte/pull/18117 for more details.
+			previous_batch?.capture(derived, value, write_version);
 		} else {
 			derived.v = value;
 			derived.wv = write_version;
@@ -422,8 +434,8 @@ export function freeze_derived_effects(derived) {
 			// make it a noop so it doesn't get called again if the derived
 			// is unfrozen. we don't set it to `null`, because the existence
 			// of a teardown function is what determines whether the
-			// effect runs again during unfreezing
-			e.teardown = noop;
+			// effect runs again during unfreezing (but not for teardown-only effects)
+			if (e.fn !== null) e.teardown = noop;
 			e.ac = null;
 
 			remove_reactions(e, 0);
@@ -441,7 +453,7 @@ export function unfreeze_derived_effects(derived) {
 	for (const e of derived.effects) {
 		// if the effect was previously frozen — indicated by the presence
 		// of a teardown function — unfreeze it
-		if (e.teardown) {
+		if (e.teardown && e.fn !== null) {
 			update_effect(e);
 		}
 	}
diff --git a/packages/svelte/src/internal/client/reactivity/effects.js b/packages/svelte/src/internal/client/reactivity/effects.js
index 65a00688b5..8e22209b2c 100644
--- a/packages/svelte/src/internal/client/reactivity/effects.js
+++ b/packages/svelte/src/internal/client/reactivity/effects.js
@@ -41,7 +41,7 @@ import { define_property } from '../../shared/utils.js';
 import { get_next_sibling } from '../dom/operations.js';
 import { component_context, dev_current_component_function, dev_stack } from '../context.js';
 import { Batch, collected_effects, current_batch } from './batch.js';
-import { flatten, increment_pending } from './async.js';
+import { flatten } from './async.js';
 import { without_reactive_context } from '../dom/elements/bindings/shared.js';
 
 /**
@@ -388,16 +388,8 @@ export function template_effect(fn, sync = [], async = [], blockers = []) {
  * @param {Blocker[]} blockers
  */
 export function deferred_template_effect(fn, sync = [], async = [], blockers = []) {
-	if (async.length > 0 || blockers.length > 0) {
-		var decrement_pending = increment_pending();
-	}
-
 	flatten(blockers, sync, async, (values) => {
 		create_effect(EFFECT, () => fn(...values.map(get)));
-
-		if (decrement_pending) {
-			decrement_pending();
-		}
 	});
 }
 
@@ -646,16 +638,22 @@ function pause_children(effect, transitions, local) {
 
 	while (child !== null) {
 		var sibling = child.next;
-		var transparent =
-			(child.f & EFFECT_TRANSPARENT) !== 0 ||
-			// If this is a branch effect without a block effect parent,
-			// it means the parent block effect was pruned. In that case,
-			// transparency information was transferred to the branch effect.
-			((child.f & BRANCH_EFFECT) !== 0 && (effect.f & BLOCK_EFFECT) !== 0);
-		// TODO we don't need to call pause_children recursively with a linked list in place
-		// it's slightly more involved though as we have to account for `transparent` changing
-		// through the tree.
-		pause_children(child, transitions, transparent ? local : false);
+
+		// If this child is a root effect, then it will become an independent root when its parent
+		// is destroyed, it should therefore not become inert nor partake in transitions.
+		if ((child.f & ROOT_EFFECT) === 0) {
+			var transparent =
+				(child.f & EFFECT_TRANSPARENT) !== 0 ||
+				// If this is a branch effect without a block effect parent,
+				// it means the parent block effect was pruned. In that case,
+				// transparency information was transferred to the branch effect.
+				((child.f & BRANCH_EFFECT) !== 0 && (effect.f & BLOCK_EFFECT) !== 0);
+			// TODO we don't need to call pause_children recursively with a linked list in place
+			// it's slightly more involved though as we have to account for `transparent` changing
+			// through the tree.
+			pause_children(child, transitions, transparent ? local : false);
+		}
+
 		child = sibling;
 	}
 }
diff --git a/packages/svelte/src/internal/client/reactivity/props.js b/packages/svelte/src/internal/client/reactivity/props.js
index e208d3b6f6..5626639a84 100644
--- a/packages/svelte/src/internal/client/reactivity/props.js
+++ b/packages/svelte/src/internal/client/reactivity/props.js
@@ -1,4 +1,4 @@
-/** @import { Effect, Source } from './types.js' */
+/** @import { Derived, Effect, Source } from './types.js' */
 import { DEV } from 'esm-env';
 import {
 	PROPS_IS_BINDABLE,
@@ -283,8 +283,14 @@ export function prop(props, key, flags, fallback) {
 
 	var fallback_value = /** @type {V} */ (fallback);
 	var fallback_dirty = true;
+	var fallback_signal = /** @type {Derived<V> | undefined} */ (undefined);
 
 	var get_fallback = () => {
+		if (lazy && runes) {
+			fallback_signal ??= derived(/** @type {() => V} */ (fallback));
+			return get(fallback_signal);
+		}
+
 		if (fallback_dirty) {
 			fallback_dirty = false;
 
diff --git a/packages/svelte/src/internal/client/reactivity/sources.js b/packages/svelte/src/internal/client/reactivity/sources.js
index f35bf72fc1..47ed57ce18 100644
--- a/packages/svelte/src/internal/client/reactivity/sources.js
+++ b/packages/svelte/src/internal/client/reactivity/sources.js
@@ -27,7 +27,8 @@ import {
 	ASYNC,
 	WAS_MARKED,
 	CONNECTED,
-	STATE_EAGER_EFFECT
+	STATE_EAGER_EFFECT,
+	REACTION_IS_UPDATING
 } from '#client/constants';
 import * as e from '../errors.js';
 import { legacy_mode_flag, tracing_mode_flag } from '../../flags/index.js';
@@ -49,7 +50,7 @@ import { proxy } from '../proxy.js';
 import { execute_derived } from './deriveds.js';
 import { UNINITIALIZED } from '../../../constants.js';
 
-/** @type {Set<any>} */
+/** @type {Set<Effect>} */
 export let eager_effects = new Set();
 
 /** @type {Map<Source, any>} */
@@ -258,7 +259,18 @@ export function flush_eager_effects() {
 	eager_effects_deferred = false;
 
 	for (const effect of eager_effects) {
-		if ((effect.f & STATE_EAGER_EFFECT) !== 0 || is_dirty(effect)) {
+		let dirty;
+
+		try {
+			dirty = (effect.f & STATE_EAGER_EFFECT) !== 0 || is_dirty(effect);
+		} catch {
+			// Dirty-checking can evaluate derived dependencies and throw in cases where
+			// parent effects are about to destroy this eager effect. Run the effect so
+			// its own error handling can deal with transient failures.
+			dirty = true;
+		}
+
+		if (dirty) {
 			update_effect(effect);
 		}
 	}
@@ -326,17 +338,16 @@ export function mark_reactions(batch, signal, wv, updated_during_traversal) {
 		// In legacy mode, skip the current effect to prevent infinite loops
 		if (!runes && reaction === active_effect) continue;
 
-		// Inspect effects need to run immediately, so that the stack trace makes sense
-		if (DEV && (flags & EAGER_EFFECT) !== 0) {
-			eager_effects.add(reaction);
-			continue;
-		}
-
 		// TODO ideally this would work, but I think we need to `apply()` before `mark_reactions`.
 		// Or pass `batch` in as an argument?
 		// if (wv <= get_cv(reaction)) continue;
 
-		if ((flags & DERIVED) !== 0) {
+		if ((flags & EAGER_EFFECT) !== 0) {
+			// Eager effects need to run immediately:
+			// - for $inspect so that the stack trace makes sense
+			// - for $state.eager because they might be without an effect parent
+			eager_effects.add(/** @type {Effect} */ (reaction));
+		} else if ((flags & DERIVED) !== 0) {
 			var derived = /** @type {Derived} */ (reaction);
 
 			if (wv > get_cv(derived)) {
diff --git a/packages/svelte/src/internal/client/reactivity/store.js b/packages/svelte/src/internal/client/reactivity/store.js
index 7124e23db8..726765b619 100644
--- a/packages/svelte/src/internal/client/reactivity/store.js
+++ b/packages/svelte/src/internal/client/reactivity/store.js
@@ -21,7 +21,7 @@ export let legacy_is_updating_store = false;
  */
 let is_store_binding = false;
 
-let IS_UNMOUNTED = Symbol();
+let IS_UNMOUNTED = Symbol('unmounted');
 
 /**
  * Gets the current value of a store. If the store isn't subscribed to yet, it will create a proxy
diff --git a/packages/svelte/src/internal/client/reactivity/types.d.ts b/packages/svelte/src/internal/client/reactivity/types.d.ts
index 48e62fb9b1..72065a5ce1 100644
--- a/packages/svelte/src/internal/client/reactivity/types.d.ts
+++ b/packages/svelte/src/internal/client/reactivity/types.d.ts
@@ -53,8 +53,8 @@ export interface Derived<V = unknown> extends Value<V>, Reaction {
 	fn: () => V;
 	/** Effects created inside this signal. Used to destroy those effects when the derived reruns or is cleaned up */
 	effects: null | Effect[];
-	/** Parent effect or derived */
-	parent: Effect | Derived | null;
+	/** Parent effect */
+	parent: Effect | null;
 }
 
 export interface EffectNodes {
diff --git a/packages/svelte/src/internal/client/render.js b/packages/svelte/src/internal/client/render.js
index 5c1be92633..7e9f80b530 100644
--- a/packages/svelte/src/internal/client/render.js
+++ b/packages/svelte/src/internal/client/render.js
@@ -23,7 +23,7 @@ import * as w from './warnings.js';
 import * as e from './errors.js';
 import { assign_nodes } from './dom/template.js';
 import { is_passive_event } from '../../utils.js';
-import { COMMENT_NODE, STATE_SYMBOL } from './constants.js';
+import { COMMENT_NODE, STATE_SYMBOL, TEXT_CACHE } from './constants.js';
 import { boundary } from './dom/blocks/boundary.js';
 
 /**
@@ -46,10 +46,9 @@ export function set_should_intro(value) {
 export function set_text(text, value) {
 	// For objects, we apply string coercion (which might make things like $state array references in the template reactive) before diffing
 	var str = value == null ? '' : typeof value === 'object' ? `${value}` : value;
-	// @ts-expect-error
-	if (str !== (text.__t ??= text.nodeValue)) {
-		// @ts-expect-error
-		text.__t = str;
+	// prettier-ignore
+	if (str !== (/** @type {any} */ (text)[TEXT_CACHE] ??= text.nodeValue)) {
+		/** @type {any} */ (text)[TEXT_CACHE] = str;
 		text.nodeValue = `${str}`;
 	}
 }
diff --git a/packages/svelte/src/internal/client/runtime.js b/packages/svelte/src/internal/client/runtime.js
index 4107da523b..2bbfcaa239 100644
--- a/packages/svelte/src/internal/client/runtime.js
+++ b/packages/svelte/src/internal/client/runtime.js
@@ -562,9 +562,15 @@ export function get(signal) {
 					}
 				}
 			} else {
-				// we're adding a dependency outside the init/update cycle
-				// (i.e. after an `await`)
-				(active_reaction.deps ??= []).push(signal);
+				// We're adding a dependency outside the init/update cycle (i.e. after an `await`).
+				// We have to deduplicate deps/reactions in this case or remove_reactions could
+				// disconnect deps/reactions that are actually still in use (if skip_deps says
+				// "disconnect all after this index" and some of the signals are also present in
+				// list prior to the cutoff index, i.e. that should be kept).
+				active_reaction.deps ??= [];
+				if (!includes.call(active_reaction.deps, signal)) {
+					active_reaction.deps.push(signal);
+				}
 
 				var reactions = signal.reactions;
 
@@ -582,7 +588,8 @@ export function get(signal) {
 			!untracking &&
 			reactivity_loss_tracker &&
 			!reactivity_loss_tracker.warned &&
-			(reactivity_loss_tracker.effect.f & REACTION_IS_UPDATING) === 0
+			(reactivity_loss_tracker.effect.f & REACTION_IS_UPDATING) === 0 &&
+			!reactivity_loss_tracker.effect_deps.has(signal)
 		) {
 			reactivity_loss_tracker.warned = true;
 
diff --git a/packages/svelte/src/internal/client/warnings.js b/packages/svelte/src/internal/client/warnings.js
index a9a50c57d6..f4e605ac96 100644
--- a/packages/svelte/src/internal/client/warnings.js
+++ b/packages/svelte/src/internal/client/warnings.js
@@ -74,6 +74,17 @@ export function console_log_state(method) {
 	}
 }
 
+/**
+ * Reading a derived belonging to a now-destroyed effect may result in stale values
+ */
+export function derived_inert() {
+	if (DEV) {
+		console.warn(`%c[svelte] derived_inert\n%cReading a derived belonging to a now-destroyed effect may result in stale values\nhttps://svelte.dev/e/derived_inert`, bold, normal);
+	} else {
+		console.warn(`https://svelte.dev/e/derived_inert`);
+	}
+}
+
 /**
  * %handler% should be a function. Did you mean to %suggestion%?
  * @param {string} handler
diff --git a/packages/svelte/src/internal/server/hydratable.js b/packages/svelte/src/internal/server/hydratable.js
index 81f59ab2fd..be75288604 100644
--- a/packages/svelte/src/internal/server/hydratable.js
+++ b/packages/svelte/src/internal/server/hydratable.js
@@ -3,7 +3,6 @@ import { async_mode_flag } from '../flags/index.js';
 import { get_render_context } from './render-context.js';
 import * as e from './errors.js';
 import * as devalue from 'devalue';
-import { get_stack } from '../shared/dev.js';
 import { DEV } from 'esm-env';
 import { get_user_code_location } from './dev.js';
 
@@ -65,7 +64,13 @@ function encode(key, value, unresolved) {
 			const placeholder = `"${uid++}"`;
 			const p = value
 				.then((v) => {
-					entry.serialized = entry.serialized.replace(placeholder, `r(${uneval(v)})`);
+					entry.serialized = entry.serialized.replace(
+						placeholder,
+						// use the function form here to prevent any string replacement characters from being interpreted
+						// in `v`, as it's potentially user-controlled and therefore potentially malicious.
+						// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace#specifying_a_string_as_the_replacement
+						() => `r(${uneval(v)})`
+					);
 				})
 				.catch((devalue_error) =>
 					e.hydratable_serialization_failed(
diff --git a/packages/svelte/src/internal/server/hydratable.test.ts b/packages/svelte/src/internal/server/hydratable.test.ts
new file mode 100644
index 0000000000..8dd54c8f1d
--- /dev/null
+++ b/packages/svelte/src/internal/server/hydratable.test.ts
@@ -0,0 +1,33 @@
+import { afterAll, beforeAll, expect, test } from 'vitest';
+import { Renderer } from './renderer.js';
+import type { Component } from 'svelte';
+import { disable_async_mode_flag, enable_async_mode_flag } from '../flags/index.js';
+import { hydratable } from './hydratable.js';
+
+beforeAll(() => {
+	enable_async_mode_flag();
+});
+
+afterAll(() => {
+	disable_async_mode_flag();
+});
+
+test('treats replacement tokens in hydratable promise values as literals', async () => {
+	const component = (renderer: Renderer) => {
+		hydratable('key', () => Promise.resolve(`$'`));
+		renderer.child(async () => {
+			await Promise.resolve();
+		});
+		renderer.push('ok');
+	};
+
+	const { head } = await Renderer.render(component as unknown as Component);
+	const script_match = head.match(/<script(?:\s[^>]*)?>([\s\S]*)<\/script>/);
+
+	expect(script_match, 'expected hydratable script in head output').toBeTruthy();
+
+	const script_content = script_match![1];
+	expect(script_content).toContain('const h = (window.__svelte ??= {}).h ??= new Map();');
+	expect(script_content).toContain('r("$\'")');
+	expect(script_content).toMatch(/\[\s*"key"\s*,\s*r\("\$'"\)\s*\]/);
+});
diff --git a/packages/svelte/src/internal/server/index.js b/packages/svelte/src/internal/server/index.js
index 34d0133a31..12f76f188e 100644
--- a/packages/svelte/src/internal/server/index.js
+++ b/packages/svelte/src/internal/server/index.js
@@ -151,7 +151,7 @@ export function attributes(attrs, css_hash, classes, styles, flags = 0) {
 		// omit functions, internal svelte properties and invalid attribute names
 		if (typeof attrs[name] === 'function') continue;
 		if (name[0] === '$' && name[1] === '$') continue; // faster than name.startsWith('$$')
-		if (INVALID_ATTR_NAME_CHAR_REGEX.test(name)) continue;
+		if (name === '' || INVALID_ATTR_NAME_CHAR_REGEX.test(name)) continue;
 
 		var value = attrs[name];
 		var lower = name.toLowerCase();
diff --git a/packages/svelte/src/internal/server/renderer.js b/packages/svelte/src/internal/server/renderer.js
index d2ab35a1f2..35aac64721 100644
--- a/packages/svelte/src/internal/server/renderer.js
+++ b/packages/svelte/src/internal/server/renderer.js
@@ -715,7 +715,12 @@ export class Renderer {
 						const { context, failed, transformError } = item.#boundary;
 
 						set_ssr_context(context);
-						let transformed = await transformError(error);
+
+						let promise = transformError(error);
+						set_ssr_context(null);
+
+						let transformed = await promise;
+						set_ssr_context(context);
 
 						// Render the failed snippet instead of the partial children content
 						const failed_renderer = new Renderer(item.global, item);
diff --git a/packages/svelte/src/reactivity/url-search-params.js b/packages/svelte/src/reactivity/url-search-params.js
index 2381e11875..2e70bf518d 100644
--- a/packages/svelte/src/reactivity/url-search-params.js
+++ b/packages/svelte/src/reactivity/url-search-params.js
@@ -4,7 +4,7 @@ import { tag } from '../internal/client/dev/tracing.js';
 import { get } from '../internal/client/runtime.js';
 import { get_current_url } from './url.js';
 
-export const REPLACE = Symbol();
+export const REPLACE = Symbol('replace');
 
 /**
  * A reactive version of the built-in [`URLSearchParams`](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams) object.
diff --git a/packages/svelte/src/utils.js b/packages/svelte/src/utils.js
index 57561e6dc7..54757a6f13 100644
--- a/packages/svelte/src/utils.js
+++ b/packages/svelte/src/utils.js
@@ -491,7 +491,7 @@ export function is_raw_text_element(name) {
 // Rejects strings containing whitespace, quotes, angle brackets, slashes, equals,
 // or other characters that could break out of a tag-name token and enable markup injection.
 export const REGEX_VALID_TAG_NAME =
-	/^[a-zA-Z][a-zA-Z0-9]*(-[a-zA-Z0-9.\-_\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u{10000}-\u{EFFFF}]+)*$/u;
+	/^[a-zA-Z][a-zA-Z0-9]*(-[a-zA-Z0-9.\-_\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u{10000}-\u{EFFFF}]*)?$/u;
 
 /**
  * Prevent devtools trying to make `location` a clickable link by inserting a zero-width space
diff --git a/packages/svelte/src/utils.test.ts b/packages/svelte/src/utils.test.ts
new file mode 100644
index 0000000000..02175ae93f
--- /dev/null
+++ b/packages/svelte/src/utils.test.ts
@@ -0,0 +1,50 @@
+import { expect, test } from 'vitest';
+import { REGEX_VALID_TAG_NAME } from './utils';
+
+test('REGEX_VALID_TAG_NAME accepts common HTML tag names', () => {
+	const common_html_tag_names = ['div', 'span', 'button', 'input', 'svg', 'math', 'a'];
+
+	for (const tag_name of common_html_tag_names) {
+		expect(REGEX_VALID_TAG_NAME.test(tag_name)).toBe(true);
+	}
+});
+
+test('REGEX_VALID_TAG_NAME accepts basic custom element names', () => {
+	const valid_custom_tag_names = ['my-element', 'x-foo', 'todo-item', 'my-element2'];
+
+	for (const tag_name of valid_custom_tag_names) {
+		expect(REGEX_VALID_TAG_NAME.test(tag_name)).toBe(true);
+	}
+});
+
+test('REGEX_VALID_TAG_NAME accepts spec-allowed custom element characters', () => {
+	const valid_custom_tag_names = [
+		'x-foo.bar',
+		'x-foo_bar',
+		'x-foo\u00B7bar',
+		'x-foo\u00FCbar',
+		'x-foo\u{1F600}bar',
+		'x-'
+	];
+
+	for (const tag_name of valid_custom_tag_names) {
+		expect(REGEX_VALID_TAG_NAME.test(tag_name)).toBe(true);
+	}
+});
+
+test('REGEX_VALID_TAG_NAME rejects invalid tag names', () => {
+	const invalid_tag_names = ['', '1', 'x\u00FC', '-x-foo', '1foo', 'x-foo bar', 'x-foo/', 'x-foo>'];
+
+	for (const tag_name of invalid_tag_names) {
+		expect(REGEX_VALID_TAG_NAME.test(tag_name)).toBe(false);
+	}
+});
+
+test('REGEX_VALID_TAG_NAME no ReDoS', () => {
+	const before = performance.now();
+	REGEX_VALID_TAG_NAME.test('a-----------------------------------!');
+	const after = performance.now();
+	if (after - before > 10) {
+		throw new Error(`REGEX_VALID_TAG_NAME is vulnerable to ReDoS`);
+	}
+});
diff --git a/packages/svelte/src/version.js b/packages/svelte/src/version.js
index f168aadee1..ee05138797 100644
--- a/packages/svelte/src/version.js
+++ b/packages/svelte/src/version.js
@@ -4,5 +4,5 @@
  * The current version, as set in package.json.
  * @type {string}
  */
-export const VERSION = '5.55.1';
+export const VERSION = '5.55.9';
 export const PUBLIC_VERSION = '5';
diff --git a/packages/svelte/tests/css/samples/comment-with-apostrophe/expected.css b/packages/svelte/tests/css/samples/comment-with-apostrophe/expected.css
new file mode 100644
index 0000000000..a196d53cc8
--- /dev/null
+++ b/packages/svelte/tests/css/samples/comment-with-apostrophe/expected.css
@@ -0,0 +1,4 @@
+
+	p.svelte-xyz {
+		padding: 0 /* it's a comment */ 1em;
+	}
diff --git a/packages/svelte/tests/css/samples/comment-with-apostrophe/input.svelte b/packages/svelte/tests/css/samples/comment-with-apostrophe/input.svelte
new file mode 100644
index 0000000000..0f9e0d2355
--- /dev/null
+++ b/packages/svelte/tests/css/samples/comment-with-apostrophe/input.svelte
@@ -0,0 +1,7 @@
+<p>red</p>
+
+<style>
+	p {
+		padding: 0 /* it's a comment */ 1em;
+	}
+</style>
diff --git a/packages/svelte/tests/helpers.js b/packages/svelte/tests/helpers.js
index d0ec8b6e44..52bd47dfae 100644
--- a/packages/svelte/tests/helpers.js
+++ b/packages/svelte/tests/helpers.js
@@ -201,7 +201,7 @@ export const async_mode = process.env.SVELTE_NO_ASYNC !== 'true';
  * @param {any[]} logs
  */
 export function normalise_inspect_logs(logs) {
-	/** @type {string[]} */
+	/** @type {any[]} */
 	const normalised = [];
 
 	for (const log of logs) {
diff --git a/packages/svelte/tests/parser-modern/samples/parens/input.svelte b/packages/svelte/tests/parser-modern/samples/parens/input.svelte
new file mode 100644
index 0000000000..ad4f4b7940
--- /dev/null
+++ b/packages/svelte/tests/parser-modern/samples/parens/input.svelte
@@ -0,0 +1 @@
+{(/**/ 42)}
diff --git a/packages/svelte/tests/parser-modern/samples/parens/output.json b/packages/svelte/tests/parser-modern/samples/parens/output.json
new file mode 100644
index 0000000000..7a5b4b38d8
--- /dev/null
+++ b/packages/svelte/tests/parser-modern/samples/parens/output.json
@@ -0,0 +1,61 @@
+{
+	"css": null,
+	"js": [],
+	"start": 0,
+	"end": 11,
+	"type": "Root",
+	"fragment": {
+		"type": "Fragment",
+		"nodes": [
+			{
+				"type": "ExpressionTag",
+				"start": 0,
+				"end": 11,
+				"expression": {
+					"type": "Literal",
+					"start": 7,
+					"end": 9,
+					"loc": {
+						"start": {
+							"line": 1,
+							"column": 7
+						},
+						"end": {
+							"line": 1,
+							"column": 9
+						}
+					},
+					"value": 42,
+					"raw": "42",
+					"leadingComments": [
+						{
+							"type": "Block",
+							"value": "",
+							"start": 2,
+							"end": 6
+						}
+					]
+				}
+			}
+		]
+	},
+	"options": null,
+	"comments": [
+		{
+			"type": "Block",
+			"value": "",
+			"start": 2,
+			"end": 6,
+			"loc": {
+				"start": {
+					"line": 1,
+					"column": 2
+				},
+				"end": {
+					"line": 1,
+					"column": 6
+				}
+			}
+		}
+	]
+}
diff --git a/packages/svelte/tests/print/samples/css-keyframes-percent/input.svelte b/packages/svelte/tests/print/samples/css-keyframes-percent/input.svelte
new file mode 100644
index 0000000000..b2a0e3aa7a
--- /dev/null
+++ b/packages/svelte/tests/print/samples/css-keyframes-percent/input.svelte
@@ -0,0 +1,7 @@
+<style>
+  @keyframes foo {
+    0% { left: 0px; }
+    50% { left: 50px; }
+    100% { left: 100px; }
+  }
+</style>
diff --git a/packages/svelte/tests/print/samples/css-keyframes-percent/output.svelte b/packages/svelte/tests/print/samples/css-keyframes-percent/output.svelte
new file mode 100644
index 0000000000..e35a5780fa
--- /dev/null
+++ b/packages/svelte/tests/print/samples/css-keyframes-percent/output.svelte
@@ -0,0 +1,13 @@
+<style>
+	@keyframes foo {
+		0% {
+			left: 0px;
+		}
+		50% {
+			left: 50px;
+		}
+		100% {
+			left: 100px;
+		}
+	}
+</style>
diff --git a/packages/svelte/tests/print/samples/style/output.svelte b/packages/svelte/tests/print/samples/style/output.svelte
index 03168cccae..9fc5e3fbba 100644
--- a/packages/svelte/tests/print/samples/style/output.svelte
+++ b/packages/svelte/tests/print/samples/style/output.svelte
@@ -19,7 +19,7 @@
 		from {
 			opacity: 0;
 		}
-		50%% {
+		50% {
 			opacity: 0.5;
 		}
 		to {
diff --git a/packages/svelte/tests/print/samples/svelte-body/input.svelte b/packages/svelte/tests/print/samples/svelte-body/input.svelte
new file mode 100644
index 0000000000..a4c26db5ce
--- /dev/null
+++ b/packages/svelte/tests/print/samples/svelte-body/input.svelte
@@ -0,0 +1 @@
+<svelte:body onmousemove={handleMousemove} />
diff --git a/packages/svelte/tests/print/samples/svelte-body/output.svelte b/packages/svelte/tests/print/samples/svelte-body/output.svelte
new file mode 100644
index 0000000000..e13eaae979
--- /dev/null
+++ b/packages/svelte/tests/print/samples/svelte-body/output.svelte
@@ -0,0 +1 @@
+<svelte:body onmousemove={handleMousemove}></svelte:body>
diff --git a/packages/svelte/tests/runtime-browser/samples/dom-clobbering-cache-symbols-spread/_config.js b/packages/svelte/tests/runtime-browser/samples/dom-clobbering-cache-symbols-spread/_config.js
new file mode 100644
index 0000000000..62248851db
--- /dev/null
+++ b/packages/svelte/tests/runtime-browser/samples/dom-clobbering-cache-symbols-spread/_config.js
@@ -0,0 +1,23 @@
+import { assert_ok, test } from '../../assert';
+
+export default test({
+	async test({ assert, target, waitUntil, window }) {
+		const form = target.querySelector('form');
+		const button = target.querySelector('button');
+		const [i1, i2, i3] = target.querySelectorAll('input');
+		assert_ok(form);
+		assert_ok(button);
+
+		assert.equal(form.id, 'initial-form');
+		assert.equal(form.className, 'first');
+		assert.equal(window.getComputedStyle(form).backgroundColor, 'rgb(255, 0, 0)');
+
+		button.click();
+		await waitUntil(() => form.id === 'updated-form');
+
+		assert.equal(form.id, 'updated-form');
+		assert.equal(form.className, 'second');
+		assert.equal(i3.id, '', 'input clobbered form');
+		assert.equal(window.getComputedStyle(form).backgroundColor, 'rgb(0, 0, 255)');
+	}
+});
diff --git a/packages/svelte/tests/runtime-browser/samples/dom-clobbering-cache-symbols-spread/main.svelte b/packages/svelte/tests/runtime-browser/samples/dom-clobbering-cache-symbols-spread/main.svelte
new file mode 100644
index 0000000000..60e9b80e81
--- /dev/null
+++ b/packages/svelte/tests/runtime-browser/samples/dom-clobbering-cache-symbols-spread/main.svelte
@@ -0,0 +1,20 @@
+<script>
+	let form_attributes = $state({ id: 'initial-form' });
+	let class_name = $state('first');
+	let background_color = $state('rgb(255, 0, 0)');
+
+	function update() {
+		form_attributes = { id: 'updated-form' };
+		class_name = 'second';
+		background_color = 'rgb(0, 0, 255)';
+	}
+</script>
+
+<button onclick={update}>update</button>
+
+<form {...form_attributes} class={class_name} style:background-color={background_color}>
+	<!-- the once non-symbol-ified hidden properties we used -->
+	<input {...{ name: '__className' }} value="x" />
+	<input {...{ name: '__style' }} value="y" />
+	<input {...{ name: '__attributes' }} value="z" />
+</form>
diff --git a/packages/svelte/tests/runtime-legacy/samples/flush-sync-each-block/Inner.svelte b/packages/svelte/tests/runtime-legacy/samples/flush-sync-each-block/Inner.svelte
new file mode 100644
index 0000000000..6d7c982db0
--- /dev/null
+++ b/packages/svelte/tests/runtime-legacy/samples/flush-sync-each-block/Inner.svelte
@@ -0,0 +1,8 @@
+<svelte:options customElement={{
+	tag: "my-inner",
+	props: { value: { reflect: true }}
+}} />
+<script>
+	export let value;
+</script>
+{value}
diff --git a/packages/svelte/tests/runtime-legacy/samples/flush-sync-each-block/_config.js b/packages/svelte/tests/runtime-legacy/samples/flush-sync-each-block/_config.js
new file mode 100644
index 0000000000..2798f533c6
--- /dev/null
+++ b/packages/svelte/tests/runtime-legacy/samples/flush-sync-each-block/_config.js
@@ -0,0 +1,20 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [btn] = target.querySelectorAll('button');
+
+		btn.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+			<button>inc</button>
+			<my-inner value="2"></my-inner>
+			2
+		`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-legacy/samples/flush-sync-each-block/main.svelte b/packages/svelte/tests/runtime-legacy/samples/flush-sync-each-block/main.svelte
new file mode 100644
index 0000000000..3be1202c97
--- /dev/null
+++ b/packages/svelte/tests/runtime-legacy/samples/flush-sync-each-block/main.svelte
@@ -0,0 +1,12 @@
+<script>
+	import "./Inner.svelte"
+	let count = 1;
+</script>
+
+<button on:click={() => count++}>inc</button>
+<!-- updating value prop will cause a flushSync -->
+<my-inner value={count}></my-inner>
+<!-- updating count will cause an internal_set -->
+{#each [count] as row}
+	{row}
+{/each}
diff --git a/packages/svelte/tests/runtime-legacy/shared.ts b/packages/svelte/tests/runtime-legacy/shared.ts
index 454ae2f766..6f30fb5d98 100644
--- a/packages/svelte/tests/runtime-legacy/shared.ts
+++ b/packages/svelte/tests/runtime-legacy/shared.ts
@@ -60,6 +60,8 @@ export interface RuntimeTest<Props extends Record<string, any> = Record<string,
 	id_prefix?: string;
 	before_test?: () => void;
 	after_test?: () => void;
+	/** If true, flushSync() will not be called before invoking test() */
+	skip_initial_flushSync?: boolean;
 	test?: (args: {
 		variant: 'dom' | 'hydrate';
 		assert: Assert;
@@ -505,7 +507,7 @@ async function run_test_variant(
 
 			try {
 				if (config.test) {
-					flushSync();
+					if (!config.skip_initial_flushSync) flushSync();
 
 					if (variant === 'hydrate' && cwd.includes('async-')) {
 						// wait for pending boundaries to render
@@ -543,7 +545,7 @@ async function run_test_variant(
 				}
 			} finally {
 				if (runes) {
-					unmount(instance);
+					await unmount(instance);
 				} else {
 					instance.$destroy();
 				}
diff --git a/packages/svelte/tests/runtime-production/samples/async-eager-derived/_config.js b/packages/svelte/tests/runtime-production/samples/async-eager-derived/_config.js
new file mode 100644
index 0000000000..043f1610fb
--- /dev/null
+++ b/packages/svelte/tests/runtime-production/samples/async-eager-derived/_config.js
@@ -0,0 +1,23 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [increment, shift] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>clicks: 0 - 0 - 0</button> <button>shift</button> <p>true - true</p>`
+		);
+
+		shift.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>clicks: 1 - 1 - 1</button> <button>shift</button> <p>false - false</p>`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-production/samples/async-eager-derived/main.svelte b/packages/svelte/tests/runtime-production/samples/async-eager-derived/main.svelte
new file mode 100644
index 0000000000..d1d979126d
--- /dev/null
+++ b/packages/svelte/tests/runtime-production/samples/async-eager-derived/main.svelte
@@ -0,0 +1,22 @@
+<script>
+	
+	let count = $state(0);
+	const delayedCount = $derived(await push(count));
+	const derivedCount = $derived(count);
+
+	let resolvers = [];
+
+	function push(value) {
+        if (!value) return value;
+		const { promise, resolve } = Promise.withResolvers();
+		resolvers.push(() => resolve(value));
+		return promise;
+	}
+</script>
+
+<button onclick={() => count += 1}>
+	clicks: {count} - {delayedCount} - {derivedCount}
+</button> 
+<button onclick={() => resolvers.shift()?.()}>shift</button>
+
+<p>{$state.eager(count) !== count} - {$state.eager(derivedCount) !== derivedCount}</p>
diff --git a/packages/svelte/tests/runtime-runes/samples/animate-no-transition-events/_config.js b/packages/svelte/tests/runtime-runes/samples/animate-no-transition-events/_config.js
new file mode 100644
index 0000000000..3144b53687
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/animate-no-transition-events/_config.js
@@ -0,0 +1,31 @@
+import { flushSync } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	test({ assert, raf, target, logs }) {
+		let divs = target.querySelectorAll('div');
+		divs.forEach((div) => {
+			// @ts-expect-error
+			div.getBoundingClientRect = function () {
+				// @ts-expect-error
+				const index = [...this.parentNode.children].indexOf(this);
+				const top = index * 30;
+
+				return {
+					left: 0,
+					right: 100,
+					top,
+					bottom: top + 20
+				};
+			};
+		});
+
+		const [btn] = target.querySelectorAll('button');
+		flushSync(() => btn.click());
+
+		raf.tick(1);
+		assert.deepEqual(logs, []);
+		raf.tick(100);
+		assert.deepEqual(logs, []);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/animate-no-transition-events/main.svelte b/packages/svelte/tests/runtime-runes/samples/animate-no-transition-events/main.svelte
new file mode 100644
index 0000000000..a6ba765cf4
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/animate-no-transition-events/main.svelte
@@ -0,0 +1,19 @@
+<script>
+	import { flip } from "svelte/animate";
+
+	let numbers = $state([0,1]);
+</script>
+
+<button onclick={() => numbers.reverse()}>reverse</button>
+
+{#each numbers as num (num)}
+	<div
+		onintrostart={() => console.log("intro start")}
+		onoutrostart={() => console.log("outro start")}
+		onintroend={() => console.log("intro end")}
+		onoutroend={() => console.log("outro end")}
+		animate:flip={{ duration: 100 }}
+	>
+		{num}
+	</div>
+{/each}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-await-block-2/_config.js b/packages/svelte/tests/runtime-runes/samples/async-await-block-2/_config.js
new file mode 100644
index 0000000000..0a927e64f6
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-await-block-2/_config.js
@@ -0,0 +1,24 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [incremet, resolve] = target.querySelectorAll('button');
+
+		incremet.click();
+		await tick();
+		incremet.click();
+		await tick();
+		resolve.click();
+		await tick();
+		resolve.click();
+		await tick();
+		resolve.click();
+		await tick();
+		resolve.click();
+		await tick();
+
+		assert.htmlEqual(target.innerHTML, '<button>increment</button> <button>resolve</button> 4 4 1');
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-await-block-2/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-await-block-2/main.svelte
new file mode 100644
index 0000000000..b619c6a949
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-await-block-2/main.svelte
@@ -0,0 +1,22 @@
+<script>
+	let count = $state(0);
+
+	const queue = [];
+
+	function push(v) {
+		if (v === 0) return v;
+
+		return new Promise((fulfil) => queue.push(() => fulfil(v)));
+	}
+
+	async function request(v) {
+		const result = $derived(await push(v));
+		return result + count;
+	}
+</script>
+
+<button onclick={() => count++}>increment</button>
+<button onclick={() => queue.shift()?.()}>resolve</button>
+{#await request(count) then result}{result}{/await}
+{#await await push(count) + count then result}{result}{/await}
+{#await await 1 then result}{result}{/await}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-batch-order/_config.js b/packages/svelte/tests/runtime-runes/samples/async-batch-order/_config.js
new file mode 100644
index 0000000000..53cceb9d54
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-batch-order/_config.js
@@ -0,0 +1,30 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [increment, shift, middle] = target.querySelectorAll('button');
+		const [div] = target.querySelectorAll('div');
+
+		increment.click();
+		await tick();
+		increment.click();
+		await tick();
+		increment.click();
+		await tick();
+		middle.click(); // resolve the second increment which will make the if block go away and the first batch discarded
+		await tick();
+		assert.htmlEqual(div.innerHTML, '2 2');
+
+		shift.click();
+		await tick();
+		shift.click();
+		await tick();
+		shift.click();
+		await tick();
+		shift.click();
+		await tick();
+		assert.htmlEqual(div.innerHTML, '3 3');
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-batch-order/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-batch-order/main.svelte
new file mode 100644
index 0000000000..0289380d78
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-batch-order/main.svelte
@@ -0,0 +1,21 @@
+<script>
+	let a = $state(0);
+
+	const deferred = [];
+
+	function delay(value) {
+		if (!value) return value;
+		return new Promise((resolve) => deferred.push(() => resolve(value)));
+	}
+</script>
+
+<div>
+	{a} {await delay(a)}
+	{#if a < 2}
+		{await delay(a)}
+	{/if}
+</div>
+
+<button onclick={() => {a++;}}>a++</button>
+<button onclick={() => deferred.shift()?.()}>shift</button>
+<button onclick={() => deferred[2]()}>middle</button>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-commit-preserve-new-batch/_config.js b/packages/svelte/tests/runtime-runes/samples/async-commit-preserve-new-batch/_config.js
new file mode 100644
index 0000000000..922feed515
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-commit-preserve-new-batch/_config.js
@@ -0,0 +1,19 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+// Tests that batch.#commit() does not null out a potentially new current_batch
+export default test({
+	skip_initial_flushSync: true, // test that the initial batch is flushed without an explicit flushSync() call
+	async test({ assert, target }) {
+		await tick();
+
+		const [button] = target.querySelectorAll('button');
+		const [updates] = target.querySelectorAll('p');
+
+		assert.htmlEqual(updates.innerHTML, 'false');
+
+		button.click();
+		await tick();
+		assert.htmlEqual(updates.innerHTML, 'true');
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-commit-preserve-new-batch/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-commit-preserve-new-batch/main.svelte
new file mode 100644
index 0000000000..f7dae33b7e
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-commit-preserve-new-batch/main.svelte
@@ -0,0 +1,30 @@
+<script>
+	let count = $state(-1);
+	let payload = $state(false);
+	let updated = $state(false);
+
+	$effect(() => {
+		if (payload) {
+			updated = true;
+		}
+	});
+
+	function update() {
+		count = 0;
+		queueMicrotask(() => {
+			payload = true;
+		});
+	}
+</script>
+
+<button onclick={update}>update</button>
+
+<p>{updated}</p>
+
+<svelte:boundary>
+	{await new Promise(() => {})}
+
+	{#snippet pending()}
+		<p>pending</p>
+	{/snippet}
+</svelte:boundary>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-context-after-await-const/_config.js b/packages/svelte/tests/runtime-runes/samples/async-context-after-await-const/_config.js
new file mode 100644
index 0000000000..6c202c1ed6
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-context-after-await-const/_config.js
@@ -0,0 +1,11 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+// Tests that context is restored after await (const has to wait on a blocker), so that getContext etc work correctly
+export default test({
+	mode: ['hydrate', 'async-server', 'client'],
+	async test({ assert, target }) {
+		await tick();
+		assert.htmlEqual(target.innerHTML, 'hi');
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-context-after-await-const/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-context-after-await-const/main.svelte
new file mode 100644
index 0000000000..be2d0dc7be
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-context-after-await-const/main.svelte
@@ -0,0 +1,11 @@
+<script>
+	import { getContext } from 'svelte';
+	const _unused = $derived(await 1);
+	//This must be created after any $derived(await...)
+	const bar = $derived(getContext('') ?? 'hi');
+</script>
+
+{#if true}
+	{@const foo = bar}
+    {foo}
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-debug-awaited-expression/_config.js b/packages/svelte/tests/runtime-runes/samples/async-debug-awaited-expression/_config.js
new file mode 100644
index 0000000000..304f65cd0a
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-debug-awaited-expression/_config.js
@@ -0,0 +1,18 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+	mode: ['client', 'async-server'],
+
+	async test({ assert, logs }) {
+		await tick();
+
+		assert.deepEqual(logs, [{ data: 'works' }]);
+	},
+	test_ssr({ assert, logs }) {
+		assert.deepEqual(logs, [{ data: 'works' }]);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-debug-awaited-expression/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-debug-awaited-expression/main.svelte
new file mode 100644
index 0000000000..92b69df8fb
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-debug-awaited-expression/main.svelte
@@ -0,0 +1,4 @@
+<svelte:boundary>
+	{@const data = await Promise.resolve("works")}
+	{@debug data}
+</svelte:boundary>
\ No newline at end of file
diff --git a/packages/svelte/tests/runtime-runes/samples/async-derived-const-blocker/_config.js b/packages/svelte/tests/runtime-runes/samples/async-derived-const-blocker/_config.js
new file mode 100644
index 0000000000..afa737f36c
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-derived-const-blocker/_config.js
@@ -0,0 +1,9 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		assert.htmlEqual(target.innerHTML, '<p>data</p>');
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-derived-const-blocker/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-derived-const-blocker/main.svelte
new file mode 100644
index 0000000000..a154859683
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-derived-const-blocker/main.svelte
@@ -0,0 +1,16 @@
+<script>
+let d = $derived(await Promise.resolve({ data: "data", hasData: true }));
+let showFetchCta = $derived(d.hasData)
+</script>
+
+{#if d}
+	{@const {data, hasData} = d}
+
+	{#if hasData}
+		<p>{data}</p>
+	{:else if showFetchCta}
+		<p>Fetch now</p>
+	{:else}
+		<p>No data</p>
+	{/if}
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-1/_config.js b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-1/_config.js
new file mode 100644
index 0000000000..fb6f3388c9
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-1/_config.js
@@ -0,0 +1,27 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+// Tests that a newly created batch during an effect flush isn't rebased right away by the previous batch.#commit(),
+// rescheduling an effect on the new batch that shouldn't run.
+export default test({
+	async test({ assert, target, logs }) {
+		await tick();
+		const [increment, resolve] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		assert.deepEqual(logs, []);
+
+		// This resolve
+		// - shouldn't result in the derived execution capturing the new derived value on the new batch, but on the previous batch which is currently flushing
+		// - shouldn't result in #commit() rebasing the new batch
+		resolve.click();
+		await tick();
+		assert.deepEqual(logs, [2]);
+
+		// As a result, this resolve shouldn't result in another execution of the effect depending on the derived
+		resolve.click();
+		await tick();
+		assert.deepEqual(logs, [2]);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-1/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-1/main.svelte
new file mode 100644
index 0000000000..af470363bf
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-1/main.svelte
@@ -0,0 +1,32 @@
+<script>
+	let count = $state(0);
+	let double = $derived(count * 2);
+	let count_mirror = $state(0);
+
+	const queued = [];
+	function delay(v) {
+		if (!v) return v;
+		return new Promise(resolve => {
+			queued.push(() => resolve(v));
+		});
+	}
+</script>
+
+<button onclick={() => count++}>count {await delay(count)} | count_mirror {await delay(count_mirror)}</button>
+<button onclick={() => queued.shift()?.()}>resolve</button>
+
+{#if count}
+	<!-- inside if block so effects are newly created and therefore added to batch.#new_effects -->
+	<!-- first $effect creates new batch ... -->
+	{(() => {
+		$effect(() => {
+			count_mirror = count;
+		})
+	})()}
+	<!-- ... which second $effect shouldn't write to because the derived execution belongs to the previous batch -->
+	{(() => {
+		$effect(() => {
+			console.log(double);
+		})
+	})()}
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-2/_config.js b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-2/_config.js
new file mode 100644
index 0000000000..d8a86f77da
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-2/_config.js
@@ -0,0 +1,25 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+// Tests that a newly created batch during an effect flush isn't rebased right away by the previous batch.#commit(),
+// rescheduling an effect on the new batch that shouldn't run.
+export default test({
+	async test({ assert, target, logs }) {
+		await tick();
+		const [increment, resolve] = target.querySelectorAll('button');
+		assert.deepEqual(logs, ['delay 0']);
+
+		increment.click();
+		await tick();
+		assert.deepEqual(logs, ['delay 0', 'delay 2']);
+
+		// This resolve should trigger the async effect only once
+		resolve.click();
+		await tick();
+		assert.deepEqual(logs, ['delay 0', 'delay 2', 'effect run', 'delay 4']);
+
+		resolve.click();
+		await tick();
+		assert.deepEqual(logs, ['delay 0', 'delay 2', 'effect run', 'delay 4']);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-2/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-2/main.svelte
new file mode 100644
index 0000000000..fc90ae2ba4
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-2/main.svelte
@@ -0,0 +1,29 @@
+<script>
+	import { untrack } from "svelte";
+
+	let a = $state(0);
+	let b = $state(0);
+	let c = $state(0);
+
+	const queued = [];
+	function delay(v) {
+		console.log('delay ' + v);
+		if (!v) return v;
+		return new Promise(resolve => {
+			queued.push(() => resolve(v));
+		});
+	}
+
+	$effect(() => {
+		if (b + c === 0 || b + c > 2) return;
+		console.log('effect run')
+		untrack(() => {
+			b++;
+			c++;
+		})
+	})
+</script>
+
+<button onclick={() => { a++; b++; }}>increment</button>
+<button onclick={() => queued.shift()?.()}>resolve</button>
+{await delay(a + b + c)}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-3/_config.js b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-3/_config.js
new file mode 100644
index 0000000000..b430e408c7
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-3/_config.js
@@ -0,0 +1,31 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+// Tests that a newly created batch during an effect flush isn't rebased right away by the previous batch.#commit(),
+// rescheduling an effect on the new batch that shouldn't run.
+export default test({
+	async test({ assert, target, logs }) {
+		await tick();
+		const [increment, shift, pop] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		assert.deepEqual(logs, []);
+
+		// Resolve the blocking await which shouldn't result in the derived execution capturing
+		// the new derived value on the new batch, but on the previous batch which is currently flushing
+		pop.click();
+		await tick();
+		assert.deepEqual(logs, [2]);
+
+		// Resolve the non-blocking await which shouldn't result in #commit() rebasing the new batch
+		shift.click();
+		await tick();
+		assert.deepEqual(logs, [2]);
+
+		// Resolve the new batch's await
+		shift.click();
+		await tick();
+		assert.deepEqual(logs, [2]);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-3/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-3/main.svelte
new file mode 100644
index 0000000000..9dec14cd13
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-3/main.svelte
@@ -0,0 +1,37 @@
+<script>
+	let count = $state(0);
+	let double = $derived(count * 2);
+	let count_mirror = $state(0);
+
+	const queued = [];
+	function delay(v) {
+		if (!v) return v;
+		return new Promise(resolve => {
+			queued.push(() => resolve(v));
+		});
+	}
+</script>
+
+<button onclick={() => count++}>count {await delay(count)} | count_mirror {await delay(count_mirror)}</button>
+<button onclick={() => queued.shift()?.()}>shift</button>
+<button onclick={() => queued.pop()?.()}>pop</button>
+
+{#if count}
+	<svelte:boundary>
+		{await delay(count)}
+		{#snippet pending()}loading{/snippet}
+	</svelte:boundary>
+	<!-- inside if block so effects are newly created and therefore added to batch.#new_effects -->
+	<!-- first $effect creates new batch ... -->
+	{(() => {
+		$effect(() => {
+			count_mirror = count;
+		})
+	})()}
+	<!-- ... which second $effect shouldn't write to because the derived execution belongs to the previous batch -->
+	{(() => {
+		$effect(() => {
+			console.log(double);
+		})
+	})()}
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-4/_config.js b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-4/_config.js
new file mode 100644
index 0000000000..804c1f53bb
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-4/_config.js
@@ -0,0 +1,58 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+// Tests that a newly created batch during an effect flush isn't rebased right away by the previous batch.#commit(),
+// rescheduling an effect on the new batch that shouldn't run.
+export default test({
+	async test({ assert, target, logs }) {
+		await tick();
+		const [increment, unrelated, resolve] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		assert.deepEqual(logs, []);
+
+		// This resolve
+		// - shouldn't result in the derived execution capturing the new derived value on the new batch, but on the previous batch which is currently flushing
+		// - shouldn't result in #commit() rebasing the new batch
+		resolve.click();
+		await tick();
+		assert.deepEqual(logs, [2]);
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>count 1 | count_mirror 0 | count_mirror_d 0 | unrelated 0</button>
+				<button>unrelated++</button>
+				<button>resolve</button>
+			`
+		);
+
+		// This resolve
+		// - shouldn't result in the derived execution capturing the new derived value on the new batch, but on the previous batch which is currently flushing
+		// - shouldn't result in #commit() rebasing the new batch
+		unrelated.click();
+		await tick();
+		assert.deepEqual(logs, [2]);
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>count 1 | count_mirror 0 | count_mirror_d 0 | unrelated 1</button>
+				<button>unrelated++</button>
+				<button>resolve</button>
+			`
+		);
+
+		// As a result, this resolve shouldn't result in another execution of the effect depending on the derived
+		resolve.click();
+		await tick();
+		assert.deepEqual(logs, [2]);
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>count 1 | count_mirror 1 | count_mirror_d 2 | unrelated 1</button>
+				<button>unrelated++</button>
+				<button>resolve</button>
+			`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-4/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-4/main.svelte
new file mode 100644
index 0000000000..fdc2447e3e
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-dont-rebase-new-batch-4/main.svelte
@@ -0,0 +1,38 @@
+<script>
+	import { untrack } from "svelte";
+
+	let count = $state(0);
+	let double = $derived(count * 2);
+	let count_mirror = $state(0);
+	let unrelated = $state(0);
+	let count_mirror_d = $derived(count_mirror * 2);
+
+	const queued = [];
+	function delay(v) {
+		if (!v) return v;
+		return new Promise(resolve => {
+			queued.push(() => resolve(v));
+		});
+	}
+</script>
+
+<button onclick={() => count++}>count {await delay(count)} | count_mirror {await delay(count_mirror)} | count_mirror_d {count_mirror_d} | unrelated {unrelated}</button>
+<button onclick={() => unrelated++}>unrelated++</button>
+<button onclick={() => queued.shift()?.()}>resolve</button>
+
+{#if count}
+	<!-- inside if block so effects are newly created and therefore added to batch.#new_effects -->
+	<!-- first $effect creates new batch ... -->
+	{(() => {
+		$effect(() => {
+			count_mirror = count;
+			untrack(() => count_mirror_d); // execute derived; should associate value with the right batch
+		})
+	})()}
+	<!-- ... which second $effect shouldn't write to because the derived execution belongs to the previous batch -->
+	{(() => {
+		$effect(() => {
+			console.log(double);
+		})
+	})()}
+{/if}
\ No newline at end of file
diff --git a/packages/svelte/tests/runtime-runes/samples/async-duplicate-dependencies/_config.js b/packages/svelte/tests/runtime-runes/samples/async-duplicate-dependencies/_config.js
new file mode 100644
index 0000000000..b7451282ac
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-duplicate-dependencies/_config.js
@@ -0,0 +1,43 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [increment, resolve] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		increment.click();
+		await tick();
+		resolve.click();
+		await tick();
+		resolve.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>increment</button>
+				<button>resolve</button>
+				4
+			`
+		);
+
+		increment.click();
+		await tick();
+		increment.click();
+		await tick();
+		resolve.click();
+		await tick();
+		resolve.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>increment</button>
+				<button>resolve</button>
+				8
+			`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-duplicate-dependencies/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-duplicate-dependencies/main.svelte
new file mode 100644
index 0000000000..58a5848e3b
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-duplicate-dependencies/main.svelte
@@ -0,0 +1,20 @@
+<script>
+	let count = $state(0);
+
+	const queue = [];
+
+	function push(v) {
+		if (v === 0) return v;
+
+		return new Promise((fulfil) => queue.push(() => fulfil(v)));
+	}
+
+	async function request(v) {
+		const result = $derived(await push(v));
+		return result + count; // read existing dependency `count` once more
+	}
+</script>
+
+<button onclick={() => count++}>increment</button>
+<button onclick={() => queue.shift()?.()}>resolve</button>
+{await request(count)}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-eager-block/_config.js b/packages/svelte/tests/runtime-runes/samples/async-eager-block/_config.js
new file mode 100644
index 0000000000..b6d283c8a5
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-eager-block/_config.js
@@ -0,0 +1,23 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [increment, resolve] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			'<button>increment</button> <button>resolve</button> 0 <p>loading...</p>'
+		);
+
+		resolve.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			'<button>increment</button> <button>resolve</button> 1 <p>1</p>'
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-eager-block/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-eager-block/main.svelte
new file mode 100644
index 0000000000..61f4705d06
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-eager-block/main.svelte
@@ -0,0 +1,20 @@
+<script>
+	let count = $state(0);
+
+	const queued = [];
+
+	async function delay(v) {
+		if (!v) return v;
+		return new Promise(r => queued.push(() => r(v)));
+	}
+</script>
+
+<button onclick={() => count++}>increment</button>
+<button onclick={() => queued.shift()?.()}>resolve</button>
+
+{await delay(count)} 
+{#if $state.eager(count) !== count}
+	<p>loading...</p>
+{:else}
+	<p>{count}</p>
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-eager-each-block/_config.js b/packages/svelte/tests/runtime-runes/samples/async-eager-each-block/_config.js
new file mode 100644
index 0000000000..a4921a5115
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-eager-each-block/_config.js
@@ -0,0 +1,32 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target, logs }) {
+		await tick();
+		const [increment, resolve] = target.querySelectorAll('button');
+		logs.length = 0;
+
+		increment.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>increment</button> <button>resolve</button>
+			<ul><li>0 / 0</li><li>0 / loading...</li><li>0 / 0</li></ul>`
+		);
+
+		resolve.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>increment</button> <button>resolve</button>
+			<ul><li>0 / 0</li><li>1 / 1</li><li>0 / 0</li></ul>`
+		);
+
+		assert.equal(
+			logs.some((l) => l.toString().includes('0 ') || l.toString().includes('2')),
+			false,
+			'only the second $state.eager should have been evaluated'
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-eager-each-block/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-eager-each-block/main.svelte
new file mode 100644
index 0000000000..f27e256e9f
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-eager-each-block/main.svelte
@@ -0,0 +1,24 @@
+<script>
+	let counts = $state([0, 0, 0]);
+	const queued = [];
+	async function delay(v) {
+		if (!v) return v;
+		return new Promise(r => queued.push(() => r(v)));
+	}
+</script>
+
+<button onclick={() => counts[1]++}>increment</button>
+<button onclick={() => queued.shift()?.()}>resolve</button>
+
+<ul>
+	{#each counts as count, i}
+		<li>
+			{await delay(count)} /
+			{#if console.log(i) || $state.eager(count) !== count}
+				loading...
+			{:else}
+				{count}
+			{/if}
+		</li>
+	{/each}
+</ul>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-effect-pending-eager/_config.js b/packages/svelte/tests/runtime-runes/samples/async-effect-pending-eager/_config.js
new file mode 100644
index 0000000000..b37b3c9228
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-effect-pending-eager/_config.js
@@ -0,0 +1,35 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [increment, shift] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>increment</button>
+				<button>shift</button>
+				1
+				<p>pending: 1</p>
+				<p>loading...</p>
+			`
+		);
+
+		shift.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>increment</button>
+				<button>shift</button>
+				1
+				<p>pending: 0</p>
+				<p>1</p>
+			`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-effect-pending-eager/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-effect-pending-eager/main.svelte
new file mode 100644
index 0000000000..535968a46a
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-effect-pending-eager/main.svelte
@@ -0,0 +1,27 @@
+<script>
+	let value = $state(0);
+	let queued = [];
+
+	function delayed(v) {
+		if (!v) return v;
+		return new Promise((resolve) => {
+			queued.push(() => resolve(v));
+		});
+	}
+</script>
+
+<button onclick={() => value++}>increment</button>
+<button onclick={() => queued.shift()?.()}>shift</button>
+
+{$state.eager(value)}
+
+{#if 1}
+	<p>pending: {$effect.pending()}</p>
+
+	{@const tmp = await delayed(value)}
+	{#if $effect.pending() > 0}
+		<p>loading...</p>
+	{:else}
+		<p>{tmp}</p>
+	{/if}
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-flushsync-in-effect/_config.js b/packages/svelte/tests/runtime-runes/samples/async-flushsync-in-effect/_config.js
new file mode 100644
index 0000000000..59a81afd35
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-flushsync-in-effect/_config.js
@@ -0,0 +1,25 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+
+		const [increment, shift] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+
+		assert.htmlEqual(target.innerHTML, '<button>clicks: 0</button><button>shift</button> 0');
+
+		shift.click();
+		await tick();
+
+		assert.htmlEqual(target.innerHTML, '<button>clicks: 1</button><button>shift</button> 1');
+
+		shift.click();
+		await tick();
+
+		assert.htmlEqual(target.innerHTML, '<button>clicks: 2</button><button>shift</button> 2');
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-flushsync-in-effect/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-flushsync-in-effect/main.svelte
new file mode 100644
index 0000000000..12c4dd578e
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-flushsync-in-effect/main.svelte
@@ -0,0 +1,25 @@
+<script lang="ts">
+	import { flushSync } from 'svelte';
+
+	let count = $state(0);
+
+	const queue: Array<() => void> = [];
+
+	$effect(() => {
+		if (count === 1) {
+			count = 2;
+			flushSync();
+		}
+	})
+
+	function push(v: number) {
+		if (v === 0) return v;
+		return new Promise(r => queue.push(() => r(v)));
+	}
+</script>
+
+<button onclick={() => count += 1}>
+	clicks: {count}
+</button>
+<button onclick={() => queue.shift()?.()}>shift</button>
+{await push(count)}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-fork-failure-escapes/_config.js b/packages/svelte/tests/runtime-runes/samples/async-fork-failure-escapes/_config.js
new file mode 100644
index 0000000000..1a9cd322dd
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-fork-failure-escapes/_config.js
@@ -0,0 +1,33 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		const [show, commit] = target.querySelectorAll('button');
+
+		show.click();
+		await tick();
+
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>show</button>
+				<button>commit</button>
+				<button>discard</button>
+			`
+		);
+
+		commit.click();
+		await tick();
+
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>show</button>
+				<button>commit</button>
+				<button>discard</button>
+				failed
+			`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-fork-failure-escapes/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-fork-failure-escapes/main.svelte
new file mode 100644
index 0000000000..d598bd6f47
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-fork-failure-escapes/main.svelte
@@ -0,0 +1,18 @@
+<script>
+	import { fork } from 'svelte';
+	let show = $state(false);
+	let f;
+</script>
+
+<button onclick={() => f = fork(() => show = true)}>show</button>
+<button onclick={() => f.commit()}>commit</button>
+<button onclick={() => f.discard()}>discard</button>
+
+<svelte:boundary>
+	{#if show}
+		{await Promise.reject('boom')}
+	{/if}
+	{#snippet failed()}
+		failed
+	{/snippet}
+</svelte:boundary>
\ No newline at end of file
diff --git a/packages/svelte/tests/runtime-runes/samples/async-if-block-unskip/_config.js b/packages/svelte/tests/runtime-runes/samples/async-if-block-unskip/_config.js
new file mode 100644
index 0000000000..d578def483
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-if-block-unskip/_config.js
@@ -0,0 +1,30 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [load, resolve] = target.querySelectorAll('button');
+
+		load.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+			<button>load</button>
+			<button>resolve</button>
+		`
+		);
+
+		resolve.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+			search search search search
+			<button>load</button>
+			<button>resolve</button>
+		`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-if-block-unskip/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-if-block-unskip/main.svelte
new file mode 100644
index 0000000000..36ebcd26d1
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-if-block-unskip/main.svelte
@@ -0,0 +1,40 @@
+<script>
+	let query = $state('');
+	// changing the query results in a new promise with loading initialized to true
+	const promise = $derived(push(query));
+
+	const resolvers = [];
+	function push(value) {
+		if (!value) return Promise.resolve(value);
+
+		const { promise, resolve } = Promise.withResolvers();
+
+		resolvers.push(() => {
+			// before resolving, set loading to false - this makes it run in a different batch
+			loading = false;
+			resolve(value);
+		});
+
+		let loading = $state(true);
+		Object.defineProperty(promise, 'loading', {
+			get() {
+				return loading;
+			}
+		});
+
+		return promise
+	}
+</script>
+
+{query} {await promise}
+
+{#if !promise.loading}
+	{query}
+{/if}
+
+{#if !promise.loading}
+	{await query}
+{/if}
+
+<button onclick={() => query = 'search'}>load</button>
+<button onclick={() => resolvers.shift()?.()}>resolve</button>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-inner-after-outer/_config.js b/packages/svelte/tests/runtime-runes/samples/async-inner-after-outer/_config.js
index 8905ee4bf5..c12eba7d17 100644
--- a/packages/svelte/tests/runtime-runes/samples/async-inner-after-outer/_config.js
+++ b/packages/svelte/tests/runtime-runes/samples/async-inner-after-outer/_config.js
@@ -34,18 +34,6 @@ export default test({
 		shift?.click();
 		await tick();
 
-		assert.htmlEqual(
-			target.innerHTML,
-			`
-			<p>true</p>
-			<button>toggle</button>
-			<button>shift</button>
-		`
-		);
-
-		shift?.click();
-		await tick();
-
 		assert.htmlEqual(
 			target.innerHTML,
 			`
diff --git a/packages/svelte/tests/runtime-runes/samples/async-new-batch-during-initial-load/_config.js b/packages/svelte/tests/runtime-runes/samples/async-new-batch-during-initial-load/_config.js
new file mode 100644
index 0000000000..c8bc4c986f
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-new-batch-during-initial-load/_config.js
@@ -0,0 +1,20 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		const [increment, pop] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		increment.click();
+		await tick();
+		pop.click();
+		await tick();
+		assert.htmlEqual(target.innerHTML, `<button>increment</button> <button>pop</button> 2 2 1`);
+
+		pop.click();
+		await tick();
+		assert.htmlEqual(target.innerHTML, `<button>increment</button> <button>pop</button> 2 2 1`);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-new-batch-during-initial-load/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-new-batch-during-initial-load/main.svelte
new file mode 100644
index 0000000000..7689af049c
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-new-batch-during-initial-load/main.svelte
@@ -0,0 +1,26 @@
+<script>
+	let count = $state(0);
+	let other = $state(0);
+
+	const queue = [];
+	function push(v) {
+		return new Promise((r,e) => queue.push(() => v === 1 ? e(v) : r(v)));
+	}
+</script>
+
+<button onclick={() => {
+	if (count === 0) {
+		other++;
+		count++;
+	} else {
+		count++
+	}
+}}>increment</button>
+<button onclick={() => queue.pop()?.()}>pop</button>
+
+{#if count > 0}
+	<svelte:boundary>
+		{await push(count)} {count} {other}
+		{#snippet failed()}boom{/snippet}
+	</svelte:boundary> 
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-obsolete-branch-no-effect-runs/Child.svelte b/packages/svelte/tests/runtime-runes/samples/async-obsolete-branch-no-effect-runs/Child.svelte
new file mode 100644
index 0000000000..1d9bdfada2
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-obsolete-branch-no-effect-runs/Child.svelte
@@ -0,0 +1,6 @@
+<script>
+	let { count } = $props();
+	let double = $derived(count * 2);
+
+	$effect.pre(() => console.log(count, double));
+</script>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-obsolete-branch-no-effect-runs/_config.js b/packages/svelte/tests/runtime-runes/samples/async-obsolete-branch-no-effect-runs/_config.js
new file mode 100644
index 0000000000..83364706e5
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-obsolete-branch-no-effect-runs/_config.js
@@ -0,0 +1,27 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target, logs, warnings }) {
+		const [increment, resolve] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		assert.deepEqual(logs, []);
+
+		resolve.click();
+		await tick();
+		assert.deepEqual(logs, []);
+
+		resolve.click();
+		await tick();
+		assert.deepEqual(logs, []);
+
+		resolve.click();
+		await tick();
+		assert.deepEqual(logs, [1, 2]);
+
+		// no await waterfall / inert derived warnings
+		assert.deepEqual(warnings, []);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-obsolete-branch-no-effect-runs/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-obsolete-branch-no-effect-runs/main.svelte
new file mode 100644
index 0000000000..fe01ae457e
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-obsolete-branch-no-effect-runs/main.svelte
@@ -0,0 +1,31 @@
+<script>
+	import Child from "./Child.svelte";
+	let count = $state(0);
+
+	let deferreds = [];
+
+	function push(v) {
+		return new Promise((resolve, reject) => {
+			deferreds.push({ resolve: () => resolve(v), reject });
+		});
+	}
+</script>
+
+<button onclick={() => count += 1}>increment</button>
+<button onclick={() => deferreds.shift()?.resolve()}>resolve</button>
+
+<svelte:boundary>
+	{#if count % 2 === 0}
+		{@const double = count * 2}
+		<p>true</p>
+		{await push(count)} {double}
+		<Child count={await push(count)} />
+	{:else}
+		<p>false</p>
+		<Child count={await push(count)} />
+	{/if}
+
+	{#snippet pending()}
+		<p>loading...</p>
+	{/snippet}
+</svelte:boundary>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-pending-batch/_config.js b/packages/svelte/tests/runtime-runes/samples/async-pending-batch/_config.js
new file mode 100644
index 0000000000..e7359efa2d
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-pending-batch/_config.js
@@ -0,0 +1,16 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	// This test mainly checks that we don't run into the 'Batch has scheduled roots' invariant wrongly.
+	// It is crafted such that two batches are scheduled to run in the same microtask, and the first
+	// tries to rebase the second.
+	async test({ assert, target }) {
+		await tick();
+		const [run] = target.querySelectorAll('button');
+
+		run.click();
+		await tick();
+		assert.htmlEqual(target.innerHTML, '<button>run</button> none none 0');
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-pending-batch/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-pending-batch/main.svelte
new file mode 100644
index 0000000000..19305cfb76
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-pending-batch/main.svelte
@@ -0,0 +1,8 @@
+<script>
+	let selectedId = $state(1);
+	let selectedOption = $derived(selectedId ? await selectedId : null);
+</script>
+
+<button onclick={() => (selectedId = null)}>run</button>
+
+{selectedId ?? "none"} {selectedOption ?? "none"} {$effect.pending()}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-async-after-sync/_config.js b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-async-after-sync/_config.js
new file mode 100644
index 0000000000..2bec9e93a3
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-async-after-sync/_config.js
@@ -0,0 +1,27 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+import { normalise_trace_logs } from '../../../helpers.js';
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+
+	async test({ assert, target, warnings }) {
+		await new Promise((r) => setTimeout(r, 25));
+
+		const [count] = target.querySelectorAll('button');
+
+		count.click();
+		await new Promise((r) => setTimeout(r, 25));
+
+		assert.deepEqual(normalise_trace_logs(warnings), [
+			{
+				log: 'Detected reactivity loss when reading `other`. This happens when state is read in an async function after an earlier `await`'
+			},
+			{
+				log: 'Detected reactivity loss when reading `other`. This happens when state is read in an async function after an earlier `await`'
+			}
+		]);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-async-after-sync/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-async-after-sync/main.svelte
new file mode 100644
index 0000000000..d3bcc199a4
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-async-after-sync/main.svelte
@@ -0,0 +1,27 @@
+<script>
+	let count = $state(0);
+	let other = $state(0);
+
+	function delayed(value, ms = 1000) {
+		return new Promise((f) => setTimeout(() => f(value), ms))
+	}
+
+	async function foo() {
+		await new Promise(r => setTimeout(r, 10));
+	}
+
+	async function bar() {
+		const value = await delayed(count, 10);
+		other; // should trigger warning
+		return value;
+	}
+
+	async function get() {
+		foo();
+		return await bar();
+	}
+</script>
+
+<button onclick={() => count++}>{count}</button>
+<button onclick={() => other++}>{other}</button>
+{await get()}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-break-return/_config.js b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-break-return/_config.js
index 3429380800..7fb54d763c 100644
--- a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-break-return/_config.js
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-break-return/_config.js
@@ -14,7 +14,7 @@ export default test({
 
 		assert.deepEqual(normalise_trace_logs(warnings), [
 			{
-				log: 'Detected reactivity loss when reading `values.length`. This happens when state is read in an async function after an earlier `await`'
+				log: 'Detected reactivity loss when reading `values[1]`. This happens when state is read in an async function after an earlier `await`'
 			}
 		]);
 	}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-1/_config.js b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-1/_config.js
new file mode 100644
index 0000000000..9785f639cb
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-1/_config.js
@@ -0,0 +1,24 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+import { normalise_trace_logs } from '../../../helpers.js';
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+	html: '<p>pending</p>',
+	async test({ assert, target, warnings }) {
+		await tick();
+
+		assert.htmlEqual(
+			target.innerHTML,
+			'<h1>number -> number -> number -> return -> body failed -> ended</h1>'
+		);
+
+		assert.deepEqual(normalise_trace_logs(warnings), [
+			{
+				log: 'Detected reactivity loss when reading `values[1]`. This happens when state is read in an async function after an earlier `await`'
+			}
+		]);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-1/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-1/main.svelte
new file mode 100644
index 0000000000..da7c48642c
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-1/main.svelte
@@ -0,0 +1,45 @@
+<script>
+	let values = $state([0, 1, 2]);
+
+	async function get_result() {
+		const logs = [];
+
+		const iterator = {
+			index: 0,
+			async next() {
+				if (this.index > 2) { done: true }
+				return { done: false, value: values[this.index++] };
+			},
+			async return() {
+				logs.push('return');
+			},
+			[Symbol.asyncIterator]() {
+				return this;
+			}
+		};
+
+		try {
+			for await (const value of iterator) {
+				logs.push('number');
+				// Read reactive state after async iterator await.
+				if (values.length === 3 && value === 2) {
+					throw new Error('body failed');
+				}
+			}
+			logs.push('done');
+		} catch (error) {
+			logs.push(error.message);
+		}
+
+		logs.push('ended');
+		return logs.join(' -> ');
+	}
+</script>
+
+<svelte:boundary>
+	<h1>{await get_result()}</h1>
+
+	{#snippet pending()}
+		<p>pending</p>
+	{/snippet}
+</svelte:boundary>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-2/_config.js b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-2/_config.js
new file mode 100644
index 0000000000..9e8a2d8def
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-2/_config.js
@@ -0,0 +1,21 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+import { normalise_trace_logs } from '../../../helpers.js';
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+	html: '<p>pending</p>',
+	async test({ assert, target, warnings }) {
+		await tick();
+
+		assert.htmlEqual(target.innerHTML, '<h1>number -> number -> next failed -> ended</h1>');
+
+		assert.deepEqual(normalise_trace_logs(warnings), [
+			{
+				log: 'Detected reactivity loss when reading `values[1]`. This happens when state is read in an async function after an earlier `await`'
+			}
+		]);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-2/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-2/main.svelte
new file mode 100644
index 0000000000..ffe2ef93c0
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await-throws-2/main.svelte
@@ -0,0 +1,43 @@
+<script>
+	let values = $state([0, 1, 2]);
+
+	async function get_result() {
+		const logs = [];
+
+		const iterator = {
+			index: 0,
+			async next() {
+				if (this.index > 1) throw new Error('next failed');
+				return { done: false, value: values[this.index++] };
+			},
+			async return() {
+				logs.push('return');
+			},
+			[Symbol.asyncIterator]() {
+				return this;
+			}
+		};
+
+		try {
+			for await (const value of iterator) {
+				logs.push('number');
+				// Read reactive state after async iterator await.
+				values.length === value;
+			}
+			logs.push('done');
+		} catch (error) {
+			logs.push(error.message);
+		}
+
+		logs.push('ended');
+		return logs.join(' -> ');
+	}
+</script>
+
+<svelte:boundary>
+	<h1>{await get_result()}</h1>
+
+	{#snippet pending()}
+		<p>pending</p>
+	{/snippet}
+</svelte:boundary>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await/_config.js b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await/_config.js
index a5dd7fa28a..ddc9cef27d 100644
--- a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await/_config.js
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-for-await/_config.js
@@ -15,7 +15,7 @@ export default test({
 
 		assert.deepEqual(normalise_trace_logs(warnings), [
 			{
-				log: 'Detected reactivity loss when reading `values.length`. This happens when state is read in an async function after an earlier `await`'
+				log: 'Detected reactivity loss when reading `values[1]`. This happens when state is read in an async function after an earlier `await`'
 			}
 		]);
 	}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-1/_config.js b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-1/_config.js
new file mode 100644
index 0000000000..516fa59a97
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-1/_config.js
@@ -0,0 +1,21 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+
+	async test({ assert, target, warnings }) {
+		await tick();
+
+		const [x, y] = target.querySelectorAll('button');
+
+		y.click();
+		await tick();
+		x.click();
+		await new Promise((r) => setTimeout(r, 15));
+
+		assert.equal(warnings.length, 0);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-1/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-1/main.svelte
new file mode 100644
index 0000000000..9af5206705
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-1/main.svelte
@@ -0,0 +1,16 @@
+<script>
+	let x = $state(0);
+	let y = $state(0);
+	async function foo(x) {
+		if (x) {
+			await 1; // restores reactivity loss warning context
+			await new Promise(r => setTimeout(r, 10)) // saves reactivity loss warning context; should not keep it while running
+		}
+		return x
+	}
+</script>
+
+{x} {await foo(y)}
+
+<button onclick={() => x += 1}>x++</button>
+<button onclick={() => y += 1}>y++</button>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-2/_config.js b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-2/_config.js
new file mode 100644
index 0000000000..6c774609e5
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-2/_config.js
@@ -0,0 +1,19 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+
+	async test({ assert, target, warnings }) {
+		await tick();
+
+		const [count] = target.querySelectorAll('button');
+
+		count.click();
+		await tick();
+
+		assert.equal(warnings.length, 0);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-2/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-2/main.svelte
new file mode 100644
index 0000000000..ea7e9dcc9b
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-2/main.svelte
@@ -0,0 +1,14 @@
+<script>
+	let count = $state(0);
+	async function delay(c) {
+		if (c) {
+			await new Promise(r => setTimeout(r));
+			count; // count already read synchronously; should not result in reacitive loss warning
+		}
+		return c;
+	}
+</script>
+
+{await delay(count)}
+
+<button onclick={() => count += 1}>count++</button>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-3/_config.js b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-3/_config.js
new file mode 100644
index 0000000000..c9c02336bc
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-3/_config.js
@@ -0,0 +1,19 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+
+	async test({ assert, target, warnings }) {
+		await new Promise((r) => setTimeout(r, 5));
+
+		const [count] = target.querySelectorAll('button');
+
+		count.click();
+		await tick();
+
+		assert.equal(warnings.length, 0);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-3/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-3/main.svelte
new file mode 100644
index 0000000000..a016655b7c
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-reactivity-loss-no-false-positive-3/main.svelte
@@ -0,0 +1,14 @@
+<script>
+	let count = $state(0);
+
+	async function run() {
+		await new Promise(r => setTimeout(r));
+	}
+	async function get() { 
+		run();
+		return 1;
+	}
+</script>
+
+<button onclick={() => count++}>{count}</button>
+{await get()}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-run-isolated-batch/Child.svelte b/packages/svelte/tests/runtime-runes/samples/async-run-isolated-batch/Child.svelte
new file mode 100644
index 0000000000..6f84dc319e
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-run-isolated-batch/Child.svelte
@@ -0,0 +1,7 @@
+<script>
+	import { push } from "./main.svelte";
+	const x = await push(1);
+	const y = await push(2);
+</script>
+
+{x} {y}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-run-isolated-batch/_config.js b/packages/svelte/tests/runtime-runes/samples/async-run-isolated-batch/_config.js
new file mode 100644
index 0000000000..a0dc38c660
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-run-isolated-batch/_config.js
@@ -0,0 +1,26 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		const [show, resolve, count] = target.querySelectorAll('button');
+
+		show.click();
+		await tick();
+		resolve.click();
+		await tick();
+		count.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			'<button>show</button> <button>resolve</button> <button>1</button>'
+		);
+
+		resolve.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			'1 2 <button>show</button> <button>resolve</button> <button>1</button>'
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-run-isolated-batch/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-run-isolated-batch/main.svelte
new file mode 100644
index 0000000000..0a5346cc47
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-run-isolated-batch/main.svelte
@@ -0,0 +1,23 @@
+<script module>
+	const queued = [];
+	export function push(v) {
+		return new Promise((fulfil) => {
+			queued.push(() => fulfil(v));
+		});
+	}
+</script>
+
+<script>
+	import Child from "./Child.svelte";
+
+	let show = $state(false);
+	let count = $state(0);
+</script>
+
+{#if show}
+	<Child />
+{/if}
+
+<button onclick={() => show = true}>show</button>
+<button onclick={() => queued.shift()?.()}>resolve</button>
+<button onclick={() => count++}>{count}</button>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-3/_config.js b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-3/_config.js
new file mode 100644
index 0000000000..ff03e0e28e
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-3/_config.js
@@ -0,0 +1,29 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+
+		const [increment, pop] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+
+		increment.click();
+		await tick();
+
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>increment</button><button>pop</button><p>0 0 0</p>`
+		);
+
+		pop.click();
+		await tick();
+
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>increment</button><button>pop</button><p>2 2 1</p>`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-3/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-3/main.svelte
new file mode 100644
index 0000000000..589ac9ea0e
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-3/main.svelte
@@ -0,0 +1,22 @@
+<script>
+	let count = $state(0);
+	let other = $state(0);
+
+	const queue = [];
+
+	function push(v) {
+		if (v === 0) return v;
+
+		return new Promise((fulfil) => {
+			queue.push(() => fulfil(v));
+		});
+	}
+</script>
+
+<button onclick={() => {
+	if (count === 0) other++;
+	count++;
+}}>increment</button>
+<button onclick={() => queue.pop()?.()}>pop</button>
+
+<p>{await push(count)} {count} {other}</p>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-4/_config.js b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-4/_config.js
new file mode 100644
index 0000000000..e1555c0062
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-4/_config.js
@@ -0,0 +1,28 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+
+		const [increment, hide, pop] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		pop.click();
+		await tick();
+		hide.click(); // hides the if block, which cancels the pending async inside, which means the batch can complete
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>increment</button> <button>hide</button> <button>pop</button> 1`
+		);
+
+		pop.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>increment</button> <button>hide</button> <button>pop</button> 1`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-4/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-4/main.svelte
new file mode 100644
index 0000000000..5ff3263d39
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-4/main.svelte
@@ -0,0 +1,21 @@
+<script>
+	let show = $state(true);
+	let count = $state(0);
+
+	const queue = [];
+
+	function push(value) {
+		if (!value) return value;
+		return new Promise(r => queue.push(() => r(value)));
+	}
+</script>
+
+<button onclick={() => count += 1}>increment</button>
+<button onclick={() => show = false}>hide</button>
+<!-- pop() so that the outer one resolves first, not the one inside the if block -->
+<button onclick={() => queue.pop()?.()}>pop</button>
+
+{await push(count)}
+{#if show}
+	{await push(count)}
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-5/_config.js b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-5/_config.js
new file mode 100644
index 0000000000..05d92e9df2
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-5/_config.js
@@ -0,0 +1,33 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+
+		const [increment, shift] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		increment.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>3</button><button>shift</button><p>1 = 1</p><p>fizz: true</p><p>buzz: true</p>`
+		);
+
+		shift.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>3</button><button>shift</button><p>1 = 1</p><p>fizz: true</p><p>buzz: true</p>`
+		);
+
+		shift.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<button>3</button><button>shift</button><p>3 = 3</p><p>fizz: true</p><p>buzz: false</p>`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-5/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-5/main.svelte
new file mode 100644
index 0000000000..b2a40e65b3
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-5/main.svelte
@@ -0,0 +1,44 @@
+<script>
+	import { getAbortSignal } from 'svelte';
+
+	const queue = [];
+
+	let n = $state(1);
+	let fizz = $state(true);
+	let buzz = $state(true);
+
+	function increment() {
+		n++;
+
+		fizz = n % 3 === 0;
+		buzz = n % 5 === 0;
+	}
+
+	function push(value) {
+		if (value === 1) return 1;
+		const d = Promise.withResolvers();
+
+		queue.push(() => d.resolve(value));
+
+		const signal = getAbortSignal();
+		signal.onabort = () => d.reject(signal.reason);
+
+		return d.promise;
+	}
+</script>
+
+<button onclick={increment}>
+	{$state.eager(n)}
+</button>
+
+<button onclick={() => queue.shift()?.()}>shift</button>
+
+<p>{n} = {await push(n)}</p>
+
+{#if true}
+	<p>fizz: {fizz}</p>
+{/if}
+
+{#if true}
+	<p>buzz: {buzz}</p>
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-6/_config.js b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-6/_config.js
new file mode 100644
index 0000000000..5b951d6c49
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-6/_config.js
@@ -0,0 +1,34 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [button1, button2, pop, shift] = target.querySelectorAll('button');
+		const [p] = target.querySelectorAll('p');
+
+		button1.click();
+		await tick();
+		button2.click();
+		await tick();
+		assert.htmlEqual(p.innerHTML, `0 + 0 = 0 | 0 0`);
+
+		shift.click();
+		await tick();
+		assert.htmlEqual(p.innerHTML, `0 + 0 = 0 | 0 0`);
+
+		pop.click();
+		await tick();
+		assert.htmlEqual(p.innerHTML, `0 + 0 = 0 | 0 0`);
+
+		pop.click();
+		await tick();
+		assert.htmlEqual(p.innerHTML, `1 + 0 = 1 | 1 0`);
+
+		shift.click();
+		await tick();
+		pop.click();
+		await tick();
+		assert.htmlEqual(p.innerHTML, `1 + 2 = 3 | 1 1`);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-6/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-6/main.svelte
new file mode 100644
index 0000000000..4515e7a488
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-6/main.svelte
@@ -0,0 +1,21 @@
+<script>
+	const queue1 = [];
+	const queue2 = [];
+
+	let a = $state(0);
+	let b = $state(0);
+	let c = $state(0);
+	let d = $state(0)
+
+	function push(value, where = 1) {
+		if (!value) return value;
+		return new Promise(r => (where === 1 ? queue1 : queue2).push(() => r(value)));
+	}
+</script>
+
+<button onclick={() => {a++;c++}}>a / c</button>
+<button onclick={() => {b+=2;d++}}>b / d</button>
+<button onclick={() => queue1.pop()?.()}>pop 1</button>
+<button onclick={() => queue2.shift()?.()}>shift 2</button>
+
+<p>{a} + {b} = {await push(a + b)} | {await push(c, 2)} {await push(d, 2)}</p>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-7/_config.js b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-7/_config.js
new file mode 100644
index 0000000000..a6f1833d67
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-7/_config.js
@@ -0,0 +1,34 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		await tick();
+		const [button1, button2, shift_1, pop_1, shift_2] = target.querySelectorAll('button');
+		const [p] = target.querySelectorAll('p');
+
+		button1.click();
+		await tick();
+		button2.click();
+		await tick();
+		assert.htmlEqual(p.innerHTML, `0 + 0 = 0 | 0 0`);
+
+		pop_1.click();
+		await tick();
+		shift_2.click();
+		await tick();
+		assert.htmlEqual(p.innerHTML, `0 + 0 = 0 | 0 0`);
+
+		// Check that the first batch can still resolve before the second even if one of its async values
+		// is already superseeded (but the subsequent batch as a whole is still pending).
+		shift_1.click();
+		await tick();
+		assert.htmlEqual(p.innerHTML, `1 + 0 = 1 | 1 0`);
+
+		shift_1.click();
+		await tick();
+		shift_2.click();
+		await tick();
+		assert.htmlEqual(p.innerHTML, `1 + 2 = 3 | 1 1`);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-7/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-7/main.svelte
new file mode 100644
index 0000000000..fec684c257
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-7/main.svelte
@@ -0,0 +1,22 @@
+<script>
+	const queue1 = [];
+	const queue2 = [];
+
+	let a = $state(0);
+	let b = $state(0);
+	let c = $state(0);
+	let d = $state(0)
+
+	function push(value, where = 1) {
+		if (!value) return value;
+		return new Promise(r => (where === 1 ? queue1 : queue2).push(() => r(value)));
+	}
+</script>
+
+<button onclick={() => {a++;c++}}>a / c</button>
+<button onclick={() => {b+=2;d++}}>b / d</button>
+<button onclick={() => queue1.shift()?.()}>shift 1</button>
+<button onclick={() => queue1.pop()?.()}>pop 1</button>
+<button onclick={() => queue2.shift()?.()}>shift 2</button>
+
+<p>{a} + {b} = {await push(a + b)} | {await push(c, 2)} {await push(d, 2)}</p>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-8/_config.js b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-8/_config.js
new file mode 100644
index 0000000000..fd0fc0de48
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-8/_config.js
@@ -0,0 +1,20 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		const [increment, pop] = target.querySelectorAll('button');
+
+		increment.click();
+		await tick();
+		increment.click();
+		await tick();
+		pop.click();
+		await tick();
+		assert.htmlEqual(target.innerHTML, '<button>increment</button><button>pop</button> 2 2 1'); // showing nothing here yet would also be ok
+
+		pop.click();
+		await tick();
+		assert.htmlEqual(target.innerHTML, '<button>increment</button><button>pop</button> 2 2 1');
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-stale-derived-8/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-8/main.svelte
new file mode 100644
index 0000000000..42b7206b56
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-stale-derived-8/main.svelte
@@ -0,0 +1,23 @@
+
+<script>
+	let count = $state(0);
+	let other = $state(0);
+
+	const queue = [];
+
+	function push(v) {
+		if (v === 0) return v;
+
+		return new Promise((resolve) => queue.push(() => resolve(v)));
+	}
+</script>
+
+<button onclick={() => {
+	if (count === 0) other++;
+	count++;
+}}>increment</button>
+<button onclick={() => queue.pop()?.()}>pop</button>
+
+{#if count > 0}
+	{await push(count)} {count} {other}
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/async-state-eager-const/_config.js b/packages/svelte/tests/runtime-runes/samples/async-state-eager-const/_config.js
new file mode 100644
index 0000000000..1511d443e5
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-state-eager-const/_config.js
@@ -0,0 +1,21 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	compileOptions: { dev: true }, // for testing that teardown effect in eager $.get(loaded) doesn't lead to a crash (because it means REACTION_RAN is set, which means unfreeze_derived runs)
+	async test({ assert, target }) {
+		const [count, shift] = target.querySelectorAll('button');
+
+		shift.click();
+		await tick();
+		assert.htmlEqual(target.innerHTML, `<button>0</button><button>shift</button><p>0</p>`);
+
+		count.click();
+		await tick();
+		assert.htmlEqual(target.innerHTML, `<button>1</button><button>shift</button><p>0 (...)</p>`);
+
+		shift.click();
+		await tick();
+		assert.htmlEqual(target.innerHTML, `<button>1</button><button>shift</button><p>1</p>`);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-state-eager-const/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-state-eager-const/main.svelte
new file mode 100644
index 0000000000..f0e2f1cdac
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-state-eager-const/main.svelte
@@ -0,0 +1,21 @@
+<script>
+	let count = $state(0);
+
+	let resolvers = [];
+
+	function push(value) {
+		const { promise, resolve } = Promise.withResolvers();
+		resolvers.push(() => resolve(value));
+		return promise;
+	}
+</script>
+
+<button onclick={() => count += 1}>{$state.eager(count)}</button>
+<button onclick={() => resolvers.shift()?.()}>shift</button>
+
+<svelte:boundary>
+	{@const loaded = $state.eager(count) === count}
+	<p>{await push(count)} {loaded ? '' : '(...)'}</p>
+
+	{#snippet pending()}{/snippet}
+</svelte:boundary>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-state-updates-microtask-separated/_config.js b/packages/svelte/tests/runtime-runes/samples/async-state-updates-microtask-separated/_config.js
new file mode 100644
index 0000000000..dea121c456
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-state-updates-microtask-separated/_config.js
@@ -0,0 +1,15 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+// Ensure that microtask timing doesn't influence whether or not a scheduled batch is flushed.
+// Timing can be such that the current_batch is reset before the scheduled flush runs, which
+// would cause the flush to skip without the fix.
+export default test({
+	async test({ assert, target }) {
+		const [btn] = target.querySelectorAll('button');
+
+		btn.click();
+		await tick();
+		assert.htmlEqual(target.innerHTML, '1 1');
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-state-updates-microtask-separated/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-state-updates-microtask-separated/main.svelte
new file mode 100644
index 0000000000..ebfbf4ca4e
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-state-updates-microtask-separated/main.svelte
@@ -0,0 +1,18 @@
+<script>
+	let a = $state(0);
+	let b = $state(0);
+</script>
+
+{#if a}
+	{@const toShow = await a}
+	{toShow}
+	{b}
+{:else}
+	<button
+		onclick={async () => {
+			a = 1;
+			await 1;
+			await 1; // two microtasks needed to get timing right to reproduce the bug
+			b = 1;
+		}}>click</button>
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/bind-this-proxy-deep/Component.svelte b/packages/svelte/tests/runtime-runes/samples/bind-this-proxy-deep/Component.svelte
new file mode 100644
index 0000000000..c43810b6bf
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/bind-this-proxy-deep/Component.svelte
@@ -0,0 +1,5 @@
+<script>
+	const props = $props();
+	// svelte-ignore state_referenced_locally
+	export const name = props.name;
+</script>
diff --git a/packages/svelte/tests/runtime-runes/samples/bind-this-proxy-deep/_config.js b/packages/svelte/tests/runtime-runes/samples/bind-this-proxy-deep/_config.js
new file mode 100644
index 0000000000..2f9e60e017
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/bind-this-proxy-deep/_config.js
@@ -0,0 +1,22 @@
+import { flushSync } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target, logs }) {
+		const btn = target.querySelector('button');
+
+		flushSync(() => {
+			btn?.click();
+		});
+
+		flushSync(() => {
+			btn?.click();
+		});
+
+		assert.deepEqual(logs, [
+			{},
+			{ 0: { name: 'Row 0' } },
+			{ 0: { name: 'Row 0' }, 1: { name: 'Row 1' } }
+		]);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/bind-this-proxy-deep/main.svelte b/packages/svelte/tests/runtime-runes/samples/bind-this-proxy-deep/main.svelte
new file mode 100644
index 0000000000..2e2a49b3f6
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/bind-this-proxy-deep/main.svelte
@@ -0,0 +1,16 @@
+<script>
+	import Row from "./Component.svelte";
+
+	const nums = $state([]);
+	const rows = $derived(nums.map(n => ({id: n, name: `Row ${n}` })));
+	const refs = $state({});
+
+	$effect(() => {
+		console.log({...refs});
+	})
+</script>
+
+<button onclick={() => nums.push(nums.length)}>Add</button>
+{#each rows as row (row.id)}
+	<Row name={row.name} bind:this={refs[row.id]} />
+{/each}
diff --git a/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/Child.svelte b/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/Child.svelte
new file mode 100644
index 0000000000..9771762c0b
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/Child.svelte
@@ -0,0 +1,7 @@
+<script>
+    import { store } from "./store.svelte.js";
+
+    // This write marks the derived in main.svelte before it has reactions added to it.
+    // This test checks that this does not cause the WAS_MARKED logic to incorrectly skip marking the derived subsequently.
+    store.set("child-init-write", Math.random());
+</script>
diff --git a/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/_config.js b/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/_config.js
new file mode 100644
index 0000000000..60985cdd12
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/_config.js
@@ -0,0 +1,29 @@
+import { flushSync } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		const [show, hide] = target.querySelectorAll('button');
+
+		hide.click();
+		flushSync();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+			<button>show</button>
+			<button>hide</button>
+		`
+		);
+
+		show.click();
+		flushSync();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+			<button>show</button>
+			<button>hide</button>
+			<div>visible</div>
+		`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/main.svelte b/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/main.svelte
new file mode 100644
index 0000000000..3359a6305b
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/main.svelte
@@ -0,0 +1,14 @@
+<script>
+    import Child from "./Child.svelte";
+    import { store } from "./store.svelte.js";
+
+    const visible = $derived(store.get("visible"));
+    const visible2 = $derived(visible);
+</script>
+
+<button onclick={() => store.set("visible", true)}>show</button>
+<button onclick={() => store.set("visible", false)}>hide</button>
+{#if visible2}
+	<Child />
+	<div>visible</div>
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/store.svelte.js b/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/store.svelte.js
new file mode 100644
index 0000000000..b48155e823
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/derived-dep-set-while-rendering/store.svelte.js
@@ -0,0 +1,13 @@
+class RawStore {
+	values = $state.raw({ visible: true });
+
+	get(key) {
+		return this.values[key];
+	}
+
+	set(key, value) {
+		this.values = { ...this.values, [key]: value };
+	}
+}
+
+export const store = new RawStore();
diff --git a/packages/svelte/tests/runtime-runes/samples/dynamic-component-member/Icon.svelte b/packages/svelte/tests/runtime-runes/samples/dynamic-component-member/Icon.svelte
new file mode 100644
index 0000000000..77cdcabaf7
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/dynamic-component-member/Icon.svelte
@@ -0,0 +1 @@
+<span>x</span>
diff --git a/packages/svelte/tests/runtime-runes/samples/dynamic-component-member/_config.js b/packages/svelte/tests/runtime-runes/samples/dynamic-component-member/_config.js
new file mode 100644
index 0000000000..22412de14d
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/dynamic-component-member/_config.js
@@ -0,0 +1,8 @@
+import { test } from '../../test';
+
+export default test({
+	mode: ['client', 'server'],
+
+	html: `<span>x</span>`,
+	ssrHtml: `<span>x</span>`
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/dynamic-component-member/main.svelte b/packages/svelte/tests/runtime-runes/samples/dynamic-component-member/main.svelte
new file mode 100644
index 0000000000..b0f95b2a31
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/dynamic-component-member/main.svelte
@@ -0,0 +1,8 @@
+<script>
+	import Icon from './Icon.svelte';
+
+	let icons = $state({ currency: { Icon } });
+	const platformIcons = $derived(icons);
+</script>
+
+<platformIcons.currency.Icon />
diff --git a/packages/svelte/tests/runtime-runes/samples/effect-root-6/Child.svelte b/packages/svelte/tests/runtime-runes/samples/effect-root-6/Child.svelte
new file mode 100644
index 0000000000..110ad82b0d
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/effect-root-6/Child.svelte
@@ -0,0 +1,14 @@
+<script>
+	export function increment() {
+		inc();
+	}
+	let inc;
+	$effect.root(() => {
+		let count = $state(0);
+		let double = $derived(count * 2);
+		inc = () => {
+			count++;
+			console.log('count', count, 'double', double);
+		}
+	})
+</script>
diff --git a/packages/svelte/tests/runtime-runes/samples/effect-root-6/_config.js b/packages/svelte/tests/runtime-runes/samples/effect-root-6/_config.js
new file mode 100644
index 0000000000..e4077c6c27
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/effect-root-6/_config.js
@@ -0,0 +1,14 @@
+import { flushSync } from 'svelte';
+import { test } from '../../test';
+
+// Test that $effect.root continues to be operational after its parent effect has been destroyed
+export default test({
+	test({ assert, target, logs }) {
+		const [hide, increment] = target.querySelectorAll('button');
+
+		hide.click();
+		flushSync();
+		increment.click();
+		assert.deepEqual(logs, ['count', 1, 'double', 2]);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/effect-root-6/main.svelte b/packages/svelte/tests/runtime-runes/samples/effect-root-6/main.svelte
new file mode 100644
index 0000000000..254cddeb5b
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/effect-root-6/main.svelte
@@ -0,0 +1,15 @@
+<script>
+	import Child from "./Child.svelte";
+	let show = $state(true);
+	let child = $state();
+	let increment;
+	$effect(() => {
+		if (child) increment = child.increment;
+	});
+</script>
+
+<button onclick={() => show = false}>hide</button>
+<button onclick={() => increment()}>increment</button>
+{#if show}
+	<Child bind:this={child} />
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/hmr-dynamic-component/Component.svelte b/packages/svelte/tests/runtime-runes/samples/hmr-dynamic-component/Component.svelte
new file mode 100644
index 0000000000..491b4e06ed
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/hmr-dynamic-component/Component.svelte
@@ -0,0 +1 @@
+component
diff --git a/packages/svelte/tests/runtime-runes/samples/hmr-dynamic-component/_config.js b/packages/svelte/tests/runtime-runes/samples/hmr-dynamic-component/_config.js
new file mode 100644
index 0000000000..8adf57f2eb
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/hmr-dynamic-component/_config.js
@@ -0,0 +1,30 @@
+import { flushSync } from 'svelte';
+import { HMR } from 'svelte/internal/client';
+import { test } from '../../test';
+
+export default test({
+	compileOptions: {
+		dev: true,
+		hmr: true
+	},
+
+	async test({ assert, target }) {
+		const [btn] = target.querySelectorAll('button');
+
+		btn.click();
+		flushSync();
+		assert.htmlEqual(target.innerHTML, `<button>show</button> component`);
+
+		// Simulate HMR swap on the child component.
+		const hidden = './_output/client/Component' + '.svelte.js';
+		const mod = await import(/* vite-ignore */ hidden);
+		const hmr_data = mod.default[HMR];
+		const fake_incoming = {
+			// Fake a new component, else HMR source's equality check will ignore the update
+			[HMR]: { fn: /** @param {any} args */ (...args) => hmr_data.fn(...args), current: null }
+		};
+		hmr_data.update(fake_incoming);
+		flushSync();
+		assert.htmlEqual(target.innerHTML, `<button>show</button> component`);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/hmr-dynamic-component/main.svelte b/packages/svelte/tests/runtime-runes/samples/hmr-dynamic-component/main.svelte
new file mode 100644
index 0000000000..7cb6982953
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/hmr-dynamic-component/main.svelte
@@ -0,0 +1,9 @@
+<script>
+	import Component from "./Component.svelte";
+
+	let C = $state(null);
+</script>
+
+<button onclick={() => C = Component}>show</button>
+
+<C />
diff --git a/packages/svelte/tests/runtime-runes/samples/inspect-derived-if-destroy/List.svelte b/packages/svelte/tests/runtime-runes/samples/inspect-derived-if-destroy/List.svelte
new file mode 100644
index 0000000000..c73ac9a99d
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/inspect-derived-if-destroy/List.svelte
@@ -0,0 +1,11 @@
+<script>
+	let {things} = $props();
+	
+	$inspect(things);
+</script>
+
+<ul>
+	{#each things as thing}
+		<li>thing {thing.id}</li>
+	{/each}
+</ul>
diff --git a/packages/svelte/tests/runtime-runes/samples/inspect-derived-if-destroy/_config.js b/packages/svelte/tests/runtime-runes/samples/inspect-derived-if-destroy/_config.js
new file mode 100644
index 0000000000..c29022c9dc
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/inspect-derived-if-destroy/_config.js
@@ -0,0 +1,21 @@
+import { normalise_inspect_logs } from '../../../helpers';
+import { test } from '../../test';
+import { flushSync } from 'svelte';
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+
+	async test({ assert, target, errors, logs }) {
+		const button = target.querySelector('button');
+
+		flushSync(() => {
+			button?.click();
+		});
+
+		assert.htmlEqual(target.innerHTML, '<button>clear</button>');
+		assert.equal(errors.length, 0);
+		assert.deepEqual(normalise_inspect_logs(logs), [[{ id: 1 }, { id: 2 }]]);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/inspect-derived-if-destroy/main.svelte b/packages/svelte/tests/runtime-runes/samples/inspect-derived-if-destroy/main.svelte
new file mode 100644
index 0000000000..89e09f417b
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/inspect-derived-if-destroy/main.svelte
@@ -0,0 +1,15 @@
+<script>
+	import List from "./List.svelte"
+	
+	let data = $state({things: [{id:1}, {id:2}]})
+	
+  function reloadData() {
+		data = null
+	}
+</script>
+
+{#if data}
+  <List things={data.things.map((t) => t)} />
+{/if}
+
+<button onclick={() => reloadData()}>clear</button>
diff --git a/packages/svelte/tests/runtime-runes/samples/props-default-value-lazy-accessors/main.svelte b/packages/svelte/tests/runtime-runes/samples/props-default-value-lazy-accessors/main.svelte
index fe2ac37bd3..f6437d6589 100644
--- a/packages/svelte/tests/runtime-runes/samples/props-default-value-lazy-accessors/main.svelte
+++ b/packages/svelte/tests/runtime-runes/samples/props-default-value-lazy-accessors/main.svelte
@@ -1,5 +1,5 @@
 <script>
-	let log = $state([]);
+	let log = [];
 
 	const fallback_value = 1;
 	const nested = {
diff --git a/packages/svelte/tests/runtime-runes/samples/props-default-value-lazy/sub.svelte b/packages/svelte/tests/runtime-runes/samples/props-default-value-lazy/sub.svelte
index fe2ac37bd3..f6437d6589 100644
--- a/packages/svelte/tests/runtime-runes/samples/props-default-value-lazy/sub.svelte
+++ b/packages/svelte/tests/runtime-runes/samples/props-default-value-lazy/sub.svelte
@@ -1,5 +1,5 @@
 <script>
-	let log = $state([]);
+	let log = [];
 
 	const fallback_value = 1;
 	const nested = {
diff --git a/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/_config.js b/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/_config.js
new file mode 100644
index 0000000000..b3274d02ec
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/_config.js
@@ -0,0 +1,19 @@
+import { flushSync, tick } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	accessors: false,
+	test({ assert, target }) {
+		const btn = target.querySelector('button');
+
+		btn?.click();
+		flushSync();
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+			<p>greeting: Hola</p>
+			<button>Change Language</button>
+			`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/main.svelte b/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/main.svelte
new file mode 100644
index 0000000000..c26c4ca75a
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/main.svelte
@@ -0,0 +1,10 @@
+<script>
+	import Sub from './sub.svelte';
+	import { set_translation } from './translations.svelte.js';
+</script>
+
+<Sub />
+
+<button onclick={() => set_translation('Hola')}>
+	Change Language
+</button>
\ No newline at end of file
diff --git a/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/sub.svelte b/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/sub.svelte
new file mode 100644
index 0000000000..b3cd3fae36
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/sub.svelte
@@ -0,0 +1,9 @@
+<script>
+	import { get_translation } from './translations.svelte.js';
+
+	const {
+		p0 = get_translation()
+	} = $props();
+</script>
+
+<p>greeting: {p0}</p>
\ No newline at end of file
diff --git a/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/translations.svelte.js b/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/translations.svelte.js
new file mode 100644
index 0000000000..4aa4dc9999
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/props-default-value-reactivity/translations.svelte.js
@@ -0,0 +1,9 @@
+let greeting = $state('Hello');
+
+export function get_translation() {
+	return greeting;
+}
+
+export function set_translation(value) {
+	greeting = value;
+}
diff --git a/packages/svelte/tests/runtime-runes/samples/store-unsubscribe-not-referenced-after-2/_config.js b/packages/svelte/tests/runtime-runes/samples/store-unsubscribe-not-referenced-after-2/_config.js
new file mode 100644
index 0000000000..d7293f9b70
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/store-unsubscribe-not-referenced-after-2/_config.js
@@ -0,0 +1,54 @@
+import { tick } from 'svelte';
+import { ok, test } from '../../test';
+
+// Test that the store is unsubscribed from, even if it's not referenced once the store itself is set to null
+export default test({
+	skip_no_async: true,
+
+	async test({ target, assert }) {
+		assert.htmlEqual(
+			target.innerHTML,
+			`<input type="number"> <p>0</p> <button>add watcher</button>`
+		);
+
+		target.querySelector('button')?.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<input type="number"> <p>1</p> hello 1 <button>remove watcher</button>`
+		);
+
+		const input = target.querySelector('input');
+		ok(input);
+
+		input.stepUp();
+		input.dispatchEvent(new Event('input', { bubbles: true }));
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<input type="number"> <p>2</p> hello 2 <button>remove watcher</button>`
+		);
+
+		target.querySelector('button')?.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<input type="number"> <p>2</p> <button>add watcher</button>`
+		);
+
+		input.stepUp();
+		input.dispatchEvent(new Event('input', { bubbles: true }));
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<input type="number"> <p>2</p> <button>add watcher</button>`
+		);
+
+		target.querySelector('button')?.click();
+		await tick();
+		assert.htmlEqual(
+			target.innerHTML,
+			`<input type="number"> <p>3</p> hello 3 <button>remove watcher</button>`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/store-unsubscribe-not-referenced-after-2/main.svelte b/packages/svelte/tests/runtime-runes/samples/store-unsubscribe-not-referenced-after-2/main.svelte
new file mode 100644
index 0000000000..4abfd3c2f9
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/store-unsubscribe-not-referenced-after-2/main.svelte
@@ -0,0 +1,29 @@
+<script>
+	import { writable, derived } from "svelte/store";
+
+	const obj = writable({ a: 1 });
+	let count = $state(0);
+	let watcherA = $state();
+
+	function watch (prop) {
+		return derived(obj, (o) => {
+			count++;
+			return o[prop];
+		});
+	}
+</script>
+
+<input type="number" bind:value={$obj.a}>
+<p>{count}</p>
+
+{#if watcherA}
+	<!-- make sure the presence of async work doesn't break the `legacy_updates` mechanism -->
+	{#if true}
+		{await 'hello'}
+	{/if}
+
+	{$watcherA}
+	<button on:click={() => watcherA = null}>remove watcher</button>
+{:else}
+	<button on:click={() => watcherA = watch("a")}>add watcher</button>
+{/if}
diff --git a/packages/svelte/tests/runtime-runes/samples/transition-derived-uninitialized/Child.svelte b/packages/svelte/tests/runtime-runes/samples/transition-derived-uninitialized/Child.svelte
new file mode 100644
index 0000000000..20bd606d9b
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/transition-derived-uninitialized/Child.svelte
@@ -0,0 +1,10 @@
+<script>
+	import { fly } from 'svelte/transition';
+
+	// Not read before the outro, by which time the derived is destroyed
+	let duration = $derived(10);
+</script>
+
+<div in:fly={{ duration: 10 }} out:fly={{ duration }}>
+	hello
+</div>
diff --git a/packages/svelte/tests/runtime-runes/samples/transition-derived-uninitialized/_config.js b/packages/svelte/tests/runtime-runes/samples/transition-derived-uninitialized/_config.js
new file mode 100644
index 0000000000..734c84a0c4
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/transition-derived-uninitialized/_config.js
@@ -0,0 +1,32 @@
+import { flushSync } from 'svelte';
+import { raf } from '../../../animation-helpers';
+import { test } from '../../test';
+
+export default test({
+	async test({ assert, target }) {
+		const [fly_in, fly_out] = target.querySelectorAll('button');
+
+		fly_in.click();
+		flushSync();
+		raf.tick(25);
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>fly in</button>
+				<button>fly out</button>
+				<div style="">hello</div>
+			`
+		);
+
+		fly_out.click();
+		flushSync();
+		raf.tick(50);
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>fly in</button>
+				<button>fly out</button>
+			`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/transition-derived-uninitialized/main.svelte b/packages/svelte/tests/runtime-runes/samples/transition-derived-uninitialized/main.svelte
new file mode 100644
index 0000000000..4fc3395af8
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/transition-derived-uninitialized/main.svelte
@@ -0,0 +1,11 @@
+<script>
+	import Child from './Child.svelte';
+	let show = $state(false);
+</script>
+
+<button onclick={() => (show = true)}>fly in</button>
+<button onclick={() => (show = false)}>fly out</button>
+
+{#if show}
+	<Child />
+{/if}
diff --git a/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/_config.js b/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/_config.js
new file mode 100644
index 0000000000..aaf40e7a52
--- /dev/null
+++ b/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/_config.js
@@ -0,0 +1,8 @@
+import { test } from '../../test';
+
+export default test({
+	mode: ['async'],
+	compileOptions: {
+		dev: true
+	}
+});
diff --git a/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/_expected.html b/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/_expected.html
new file mode 100644
index 0000000000..93016d569c
--- /dev/null
+++ b/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/_expected.html
@@ -0,0 +1 @@
+<!--[--><img alt="test" src=""/><!--]-->
\ No newline at end of file
diff --git a/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/_expected_head.html b/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/_expected_head.html
new file mode 100644
index 0000000000..96ba2bba28
--- /dev/null
+++ b/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/_expected_head.html
@@ -0,0 +1 @@
+<!--1410iyz--><!----><title>Async multiple attributes</title>
\ No newline at end of file
diff --git a/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/main.svelte b/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/main.svelte
new file mode 100644
index 0000000000..f14ccd088b
--- /dev/null
+++ b/packages/svelte/tests/server-side-rendering/samples/async-multiple-attrs/main.svelte
@@ -0,0 +1,15 @@
+<script>
+	const user = $derived(Promise.resolve({ 
+		name: 'test',
+		image: '',
+	}))
+</script>
+
+<svelte:head>
+<title>Async multiple attributes</title>
+</svelte:head>
+
+<img
+	alt={(await user).name}
+	src={(await user).image}
+/>
diff --git a/packages/svelte/tests/server-side-rendering/samples/spread-attributes-event-handler-xss/main.svelte b/packages/svelte/tests/server-side-rendering/samples/spread-attributes-event-handler-xss/main.svelte
index 2a8c17f048..e47a19408e 100644
--- a/packages/svelte/tests/server-side-rendering/samples/spread-attributes-event-handler-xss/main.svelte
+++ b/packages/svelte/tests/server-side-rendering/samples/spread-attributes-event-handler-xss/main.svelte
@@ -5,7 +5,12 @@
 		onclick: 'alert(1)',
 		onerror: 'alert(1)',
 		onfocus: 'alert(1)',
-		onmouseover: 'alert(1)'
+		onmouseover: 'alert(1)',
+		' onload': 'alert(1)',
+		'\tonload': 'alert(1)',
+		'\u00a0onload': 'alert(1)',
+		"\t": "/onmouseover=alert(1)//",
+		"": "/onmouseover=alert(1)//"
 	};
 </script>
 
diff --git a/packages/svelte/tests/signals/test.ts b/packages/svelte/tests/signals/test.ts
index 9c61a18c75..c9cecee200 100644
--- a/packages/svelte/tests/signals/test.ts
+++ b/packages/svelte/tests/signals/test.ts
@@ -1391,8 +1391,12 @@ describe('signals', () => {
 		};
 	});
 
-	test('derived whose original parent effect has been destroyed keeps updating', () => {
+	test('derived whose original parent effect has been destroyed no longer updates', () => {
 		return () => {
+			const warn = console.warn;
+			const warnings: string[] = [];
+			console.warn = (...args) => warnings.push(...args);
+
 			let count: Source<number>;
 			let double: Derived<number>;
 			const destroy = effect_root(() => {
@@ -1404,17 +1408,23 @@ describe('signals', () => {
 
 			flushSync();
 			assert.equal($.get(double!), 0);
-
-			destroy();
 			flushSync();
 
 			set(count!, 1);
 			flushSync();
 			assert.equal($.get(double!), 2);
 
+			destroy();
+
+			assert.equal($.get(double!), 2);
+			assert.equal(warnings.length, 0); // value is unchanged, no warning yet
+
 			set(count!, 2);
 			flushSync();
-			assert.equal($.get(double!), 4);
+			assert.equal($.get(double!), 2);
+			assert.ok(warnings.some((str) => str.includes('derived_inert')));
+
+			console.warn = warn;
 		};
 	});
 
diff --git a/packages/svelte/tests/snapshot/samples/async-const/_expected/server/index.svelte.js b/packages/svelte/tests/snapshot/samples/async-const/_expected/server/index.svelte.js
index 5f3cfa6ca6..c0cb999e85 100644
--- a/packages/svelte/tests/snapshot/samples/async-const/_expected/server/index.svelte.js
+++ b/packages/svelte/tests/snapshot/samples/async-const/_expected/server/index.svelte.js
@@ -7,16 +7,7 @@ export default function Async_const($$renderer) {
 
 		let a;
 		let b;
-
-		var promises = $$renderer.run([
-			async () => {
-				a = (await $.save(1))();
-			},
-
-			() => {
-				b = a + 1;
-			}
-		]);
+		var promises = $$renderer.run([async () => a = (await $.save(1))(), () => b = a + 1]);
 
 		$$renderer.push(`<p>`);
 		$$renderer.async([promises[1]], ($$renderer) => $$renderer.push(() => $.escape(b)));
diff --git a/packages/svelte/tests/snapshot/samples/async-in-derived/_expected/client/index.svelte.js b/packages/svelte/tests/snapshot/samples/async-in-derived/_expected/client/index.svelte.js
index 4f06d9ddbf..79b8ad0040 100644
--- a/packages/svelte/tests/snapshot/samples/async-in-derived/_expected/client/index.svelte.js
+++ b/packages/svelte/tests/snapshot/samples/async-in-derived/_expected/client/index.svelte.js
@@ -2,6 +2,8 @@ import 'svelte/internal/disclose-version';
 import 'svelte/internal/flags/async';
 import * as $ from 'svelte/internal/client';
 
+var root = $.from_html(`<!> <!>`, 1);
+
 export default function Async_in_derived($$anchor, $$props) {
 	$.push($$props, true);
 
@@ -21,7 +23,7 @@ export default function Async_in_derived($$anchor, $$props) {
 		}
 	]);
 
-	var fragment = $.comment();
+	var fragment = root();
 	var node = $.first_child(fragment);
 
 	{
@@ -49,6 +51,23 @@ export default function Async_in_derived($$anchor, $$props) {
 		});
 	}
 
+	var node_1 = $.sibling(node, 2);
+
+	{
+		var consequent_1 = ($$anchor) => {
+			let x;
+
+			var promises_1 = $.run([
+				() => $$promises[2].promise,
+				() => x = $.derived(() => $.get(no2))
+			]);
+		};
+
+		$.if(node_1, ($$render) => {
+			if (true) $$render(consequent_1);
+		});
+	}
+
 	$.append($$anchor, fragment);
 	$.pop();
 }
\ No newline at end of file
diff --git a/packages/svelte/tests/snapshot/samples/async-in-derived/_expected/server/index.svelte.js b/packages/svelte/tests/snapshot/samples/async-in-derived/_expected/server/index.svelte.js
index 3a53475944..651a92f9a8 100644
--- a/packages/svelte/tests/snapshot/samples/async-in-derived/_expected/server/index.svelte.js
+++ b/packages/svelte/tests/snapshot/samples/async-in-derived/_expected/server/index.svelte.js
@@ -28,30 +28,31 @@ export default function Async_in_derived($$renderer, $$props) {
 			let no2;
 
 			var promises = $$renderer.run([
-				async () => {
-					yes1 = (await $.save(1))();
-				},
-
-				async () => {
-					yes2 = foo((await $.save(1))());
-				},
-
-				() => {
-					no1 = (async () => {
-						return await 1;
-					})();
-				},
-
-				() => {
-					no2 = (async () => {
-						return await 1;
-					})();
-				}
+				async () => yes1 = (await $.save(1))(),
+				async () => yes2 = foo((await $.save(1))()),
+				() => no1 = (async () => {
+					return await 1;
+				})(),
+
+				() => no2 = (async () => {
+					return await 1;
+				})()
 			]);
 		} else {
 			$$renderer.push('<!--[-1-->');
 		}
 
+		$$renderer.push(`<!--]--> `);
+
+		if (true) {
+			$$renderer.push('<!--[0-->');
+
+			let x;
+			var promises_1 = $$renderer.run([() => $$promises[2], () => x = no2()]);
+		} else {
+			$$renderer.push('<!--[-1-->');
+		}
+
 		$$renderer.push(`<!--]-->`);
 	});
 }
\ No newline at end of file
diff --git a/packages/svelte/tests/snapshot/samples/async-in-derived/index.svelte b/packages/svelte/tests/snapshot/samples/async-in-derived/index.svelte
index bda88fd3ae..b105bef189 100644
--- a/packages/svelte/tests/snapshot/samples/async-in-derived/index.svelte
+++ b/packages/svelte/tests/snapshot/samples/async-in-derived/index.svelte
@@ -19,3 +19,7 @@
 		return await 1;
 	})()}
 {/if}
+
+{#if true}
+	{@const x = no2}
+{/if}
diff --git a/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/_expected/client/index.svelte.js b/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/_expected/client/index.svelte.js
index 5281a86582..837a7cd65a 100644
--- a/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/_expected/client/index.svelte.js
+++ b/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/_expected/client/index.svelte.js
@@ -1,9 +1,9 @@
 import 'svelte/internal/disclose-version';
 import * as $ from 'svelte/internal/client';
 
-var root = $.from_html(`<h1></h1> <b></b> <button> </button> <h1></h1>`, 1);
+var root = $.from_html(`<h1></h1> <b></b> <button> </button> <h1></h1> <div></div>`, 1);
 
-export default function Nullish_coallescence_omittance($$anchor) {
+export default function Nullish_coallescence_omittance($$anchor, $$props) {
 	let name = 'world';
 	let count = $.state(0);
 	var fragment = root();
@@ -23,7 +23,14 @@ export default function Nullish_coallescence_omittance($$anchor) {
 	var h1_1 = $.sibling(button, 2);
 
 	h1_1.textContent = 'Hello, world';
-	$.template_effect(() => $.set_text(text, `Count is ${$.get(count) ?? ''}`));
+
+	var div = $.sibling(h1_1, 2);
+
+	$.template_effect(() => {
+		$.set_text(text, `Count is ${$.get(count) ?? ''}`);
+		$.set_attribute(div, 'title', `Hello, world ${$.get(count) ?? ''}  1  ${typeof $$props.value} ${$$props.value ?? ''}`);
+	});
+
 	$.delegated('click', button, () => $.update(count));
 	$.append($$anchor, fragment);
 }
diff --git a/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/_expected/server/index.svelte.js b/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/_expected/server/index.svelte.js
index a7e580acb8..357a887c9b 100644
--- a/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/_expected/server/index.svelte.js
+++ b/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/_expected/server/index.svelte.js
@@ -1,8 +1,9 @@
 import * as $ from 'svelte/internal/server';
 
-export default function Nullish_coallescence_omittance($$renderer) {
+export default function Nullish_coallescence_omittance($$renderer, $$props) {
 	let name = 'world';
 	let count = 0;
+	let { value } = $$props;
 
-	$$renderer.push(`<h1>Hello, world!</h1> <b>123</b> <button>Count is ${$.escape(count)}</button> <h1>Hello, world</h1>`);
+	$$renderer.push(`<h1>Hello, world!</h1> <b>123</b> <button>Count is ${$.escape(count)}</button> <h1>Hello, world</h1> <div${$.attr('title', `Hello, world ${$.stringify(count)}  1  ${typeof value} ${$.stringify(value)}`)}></div>`);
 }
\ No newline at end of file
diff --git a/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/index.svelte b/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/index.svelte
index a67c574fee..ed88f5a269 100644
--- a/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/index.svelte
+++ b/packages/svelte/tests/snapshot/samples/nullish-coallescence-omittance/index.svelte
@@ -1,8 +1,10 @@
 <script>
     let name = 'world';
     let count = $state(0);
+    let { value } = $props();
 </script>
 <h1>Hello, {null}{name}!</h1>
 <b>{1 ?? 'stuff'}{2 ?? 'more stuff'}{3 ?? 'even more stuff'}</b>
 <button onclick={()=>count++}>Count is {count}</button>
-<h1>Hello, {name ?? 'earth' ?? null}</h1>
\ No newline at end of file
+<h1>Hello, {name ?? 'earth' ?? null}</h1>
+<div title="Hello, {name} {count} {null} {1} {undefined} {typeof value} {value}"></div>
diff --git a/packages/svelte/types/index.d.ts b/packages/svelte/types/index.d.ts
index 019baf45dd..3f71d44177 100644
--- a/packages/svelte/types/index.d.ts
+++ b/packages/svelte/types/index.d.ts
@@ -3345,6 +3345,8 @@ declare namespace $state {
 	 * </script>
 	 * ```
 	 *
+	 * If `state` has a `toJSON` method, the snapshot will clone the value returned from `toJSON` instead of the original object.
+	 *
 	 * @see {@link https://svelte.dev/docs/svelte/$state#$state.snapshot Documentation}
 	 *
 	 * @param state The value to snapshot
diff --git a/playgrounds/sandbox/package.json b/playgrounds/sandbox/package.json
index 629cb33b5a..12676777cb 100644
--- a/playgrounds/sandbox/package.json
+++ b/playgrounds/sandbox/package.json
@@ -21,7 +21,7 @@
     "polka": "^1.0.0-next.25",
     "svelte": "workspace:*",
     "tinyglobby": "^0.2.12",
-    "vite": "^7.1.11",
+    "vite": "^7.3.2",
     "vite-plugin-devtools-json": "^1.0.0",
     "vite-plugin-inspect": "^11.3.3"
   }
diff --git a/playgrounds/sandbox/scripts/download.js b/playgrounds/sandbox/scripts/download.js
index 538b4956fe..5b915c8abd 100644
--- a/playgrounds/sandbox/scripts/download.js
+++ b/playgrounds/sandbox/scripts/download.js
@@ -2,6 +2,7 @@ import fs from 'node:fs';
 import path from 'node:path';
 import { parseArgs } from 'node:util';
 import { execSync } from 'node:child_process';
+import readline from 'node:readline/promises';
 import { chromium } from 'playwright';
 
 const { values, positionals } = parseArgs({
@@ -546,9 +547,9 @@ function convert_vite_project(repo_dir) {
 /**
  * Process a local or cloned directory
  * @param {string} dir_path
- * @returns {Array<{name: string, contents: string}>}
+ * @returns {Promise<Array<{name: string, contents: string}> | null>}
  */
-function process_directory(dir_path) {
+async function process_directory(dir_path) {
 	const all_files = get_all_files(dir_path);
 	const project_info = detect_project_type(all_files);
 
@@ -558,7 +559,18 @@ function process_directory(dir_path) {
 	if (project_info.has_app_imports) {
 		console.error('Error: This SvelteKit project uses $app/* imports which cannot be converted.');
 		console.error('The playground does not support SvelteKit runtime features.');
-		process.exit(1);
+
+		const fallback_dir = path.resolve(base_dir, '..', '..', 'kit-sandbox-tmp');
+		const should_copy = await prompt_download_to_kit_sandbox_tmp(fallback_dir);
+
+		if (!should_copy) {
+			process.exit(1);
+		}
+
+		copy_project_to_directory(dir_path, fallback_dir);
+		console.log(`Project copied to ${fallback_dir}`);
+
+		return null;
 	}
 
 	// Convert based on project type
@@ -571,6 +583,66 @@ function process_directory(dir_path) {
 	}
 }
 
+/**
+ * Ask whether to copy the project to playgrounds/kit-sandbox-tmp
+ * @param {string} fallback_dir
+ * @returns {Promise<boolean>}
+ */
+async function prompt_download_to_kit_sandbox_tmp(fallback_dir) {
+	if (!process.stdin.isTTY || !process.stdout.isTTY) {
+		return false;
+	}
+
+	const rl = readline.createInterface({ input: process.stdin, output: process.stdout });
+
+	try {
+		const answer = await rl.question(
+			`Would you like to copy this project into ${fallback_dir} instead? [y/N] `
+		);
+		return /^(y|yes)$/i.test(answer.trim());
+	} finally {
+		rl.close();
+	}
+}
+
+/**
+ * Copy a project directory while skipping generated and dependency folders
+ * @param {string} source_dir
+ * @param {string} target_dir
+ */
+function copy_project_to_directory(source_dir, target_dir) {
+	const skip_dirs = new Set(['node_modules', '.git', '.svelte-kit', 'build', 'dist']);
+
+	if (fs.existsSync(target_dir)) {
+		fs.rmSync(target_dir, { recursive: true, force: true });
+	}
+
+	/** @param {string} from_dir */
+	function copy_recursive(from_dir) {
+		const relative_dir = path.relative(source_dir, from_dir);
+		const to_dir = relative_dir ? path.join(target_dir, relative_dir) : target_dir;
+
+		fs.mkdirSync(to_dir, { recursive: true });
+
+		for (const entry of fs.readdirSync(from_dir, { withFileTypes: true })) {
+			if (entry.isDirectory() && skip_dirs.has(entry.name)) {
+				continue;
+			}
+
+			const source_path = path.join(from_dir, entry.name);
+			const target_path = path.join(to_dir, entry.name);
+
+			if (entry.isDirectory()) {
+				copy_recursive(source_path);
+			} else if (entry.isFile()) {
+				fs.copyFileSync(source_path, target_path);
+			}
+		}
+	}
+
+	copy_recursive(source_dir);
+}
+
 /**
  * Reset a directory so it exists and is empty
  * @param {string} dir_path
@@ -602,7 +674,7 @@ let files;
 // Check if it's a local directory first (before URL parsing)
 if (is_local) {
 	console.log(`Processing local directory: ${url_arg}`);
-	files = process_directory(url_arg);
+	files = await process_directory(url_arg);
 } else if (resolved_test_path) {
 	// Copy files from test
 	console.log(`Processing test ${url_arg}`);
@@ -616,21 +688,21 @@ if (is_local) {
 		});
 } else if (url && is_github_url(url)) {
 	// GitHub repository handling
-	await with_tmp_dir(base_dir, (tmp_dir) => {
+	await with_tmp_dir(base_dir, async (tmp_dir) => {
 		clone_github_repo(url, tmp_dir);
-		files = process_directory(tmp_dir);
+		files = await process_directory(tmp_dir);
 	});
 } else if (url && is_stackblitz_github_url(url)) {
 	// StackBlitz GitHub project handling (redirect to GitHub clone)
-	await with_tmp_dir(base_dir, (tmp_dir) => {
+	await with_tmp_dir(base_dir, async (tmp_dir) => {
 		clone_stackblitz_github_project(url, tmp_dir);
-		files = process_directory(tmp_dir);
+		files = await process_directory(tmp_dir);
 	});
 } else if (url && is_stackblitz_edit_url(url)) {
 	// StackBlitz edit URLs - use browser automation to download
 	await with_tmp_dir(base_dir, async (tmp_dir) => {
 		await download_stackblitz_project(url, tmp_dir);
-		files = process_directory(tmp_dir);
+		files = await process_directory(tmp_dir);
 	});
 } else if (url && url.origin === 'https://svelte.dev' && url.pathname.startsWith('/playground/')) {
 	// Svelte playground URL handling (existing logic)
@@ -680,6 +752,10 @@ if (is_local) {
 	process.exit(1);
 }
 
+if (files === null) {
+	process.exit(0);
+}
+
 // Output files
 if (create_test_name) {
 	const test_parts = create_test_name.split('/').filter(Boolean);
diff --git a/playgrounds/sandbox/ssr-dev.js b/playgrounds/sandbox/ssr-dev.js
index 8a0c063d47..b770848ad1 100644
--- a/playgrounds/sandbox/ssr-dev.js
+++ b/playgrounds/sandbox/ssr-dev.js
@@ -29,8 +29,9 @@ polka()
 		const { head, body } = await render(App);
 
 		const html = transformed_template
-			.replace(`<!--ssr-head-->`, head)
-			.replace(`<!--ssr-body-->`, body)
+			// use function form to prevent any string replacement characters from being interpreted
+			.replace(`<!--ssr-head-->`, () => head)
+			.replace(`<!--ssr-body-->`, () => body)
 			// check that Safari doesn't break hydration
 			.replaceAll('+636-555-3226', '<a href="tel:+636-555-3226">+636-555-3226</a>');
 
diff --git a/playgrounds/sandbox/ssr-prod.js b/playgrounds/sandbox/ssr-prod.js
index 0c760188d4..e3ece4d5be 100644
--- a/playgrounds/sandbox/ssr-prod.js
+++ b/playgrounds/sandbox/ssr-prod.js
@@ -9,8 +9,9 @@ const { head, body } = await render(App);
 
 const rendered = fs
 	.readFileSync(path.resolve('./dist/client/index.html'), 'utf-8')
-	.replace(`<!--ssr-body-->`, body)
-	.replace(`<!--ssr-head-->`, head);
+	// use function form to prevent any string replacement characters from being interpreted
+	.replace(`<!--ssr-body-->`, () => body)
+	.replace(`<!--ssr-head-->`, () => head);
 
 const types = {
 	'.js': 'application/javascript',
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2987749c2a..25899b297d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -75,8 +75,8 @@ importers:
         specifier: ^1.5.0
         version: 1.5.0
       '@sveltejs/acorn-typescript':
-        specifier: ^1.0.5
-        version: 1.0.5(acorn@8.15.0)
+        specifier: ^1.0.10
+        version: 1.0.10(acorn@8.16.0)
       '@types/estree':
         specifier: ^1.0.5
         version: 1.0.8
@@ -85,7 +85,7 @@ importers:
         version: 2.0.7
       acorn:
         specifier: ^8.12.1
-        version: 8.15.0
+        version: 8.16.0
       aria-query:
         specifier: 5.3.1
         version: 5.3.1
@@ -96,14 +96,14 @@ importers:
         specifier: ^2.1.1
         version: 2.1.1
       devalue:
-        specifier: ^5.6.4
-        version: 5.6.4
+        specifier: ^5.8.1
+        version: 5.8.1
       esm-env:
         specifier: ^1.2.1
         version: 1.2.1
       esrap:
-        specifier: ^2.2.4
-        version: 2.2.4
+        specifier: ^2.2.9
+        version: 2.2.9(@typescript-eslint/types@8.56.0)
       is-reference:
         specifier: ^3.0.3
         version: 3.0.3
@@ -125,16 +125,16 @@ importers:
         version: 1.58.0
       '@rollup/plugin-commonjs':
         specifier: ^28.0.1
-        version: 28.0.1(rollup@4.59.0)
+        version: 28.0.1(rollup@4.60.1)
       '@rollup/plugin-node-resolve':
         specifier: ^15.3.0
-        version: 15.3.0(rollup@4.59.0)
+        version: 15.3.0(rollup@4.60.1)
       '@rollup/plugin-terser':
         specifier: ^0.4.4
-        version: 0.4.4(rollup@4.59.0)
+        version: 0.4.4(rollup@4.60.1)
       '@rollup/plugin-virtual':
         specifier: ^3.0.2
-        version: 3.0.2(rollup@4.59.0)
+        version: 3.0.2(rollup@4.60.1)
       '@types/aria-query':
         specifier: ^5.0.4
         version: 5.0.4
@@ -149,7 +149,7 @@ importers:
         version: 0.25.11
       rollup:
         specifier: ^4.59.0
-        version: 4.59.0
+        version: 4.60.1
       source-map:
         specifier: ^0.7.4
         version: 0.7.4
@@ -167,7 +167,7 @@ importers:
     devDependencies:
       '@sveltejs/vite-plugin-svelte':
         specifier: ^6.2.0
-        version: 6.2.0(svelte@packages+svelte)(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
+        version: 6.2.0(svelte@packages+svelte)(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
       '@types/node':
         specifier: ^24.5.2
         version: 24.5.2
@@ -181,14 +181,14 @@ importers:
         specifier: ^0.2.12
         version: 0.2.15
       vite:
-        specifier: ^7.1.11
-        version: 7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
+        specifier: ^7.3.2
+        version: 7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
       vite-plugin-devtools-json:
         specifier: ^1.0.0
-        version: 1.0.0(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
+        version: 1.0.0(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
       vite-plugin-inspect:
         specifier: ^11.3.3
-        version: 11.3.3(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
+        version: 11.3.3(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
 
 packages:
 
@@ -294,6 +294,12 @@ packages:
     cpu: [ppc64]
     os: [aix]
 
+  '@esbuild/aix-ppc64@0.27.7':
+    resolution: {integrity: sha512-EKX3Qwmhz1eMdEJokhALr0YiD0lhQNwDqkPYyPhiSwKrh7/4KRjQc04sZ8db+5DVVnZ1LmbNDI1uAMPEUBnQPg==}
+    engines: {node: '>=18'}
+    cpu: [ppc64]
+    os: [aix]
+
   '@esbuild/android-arm64@0.21.5':
     resolution: {integrity: sha512-c0uX9VAUBQ7dTDCjq+wdyGLowMdtR/GoC2U5IYk/7D1H1JYC0qseD7+11iMP2mRLN9RcCMRcjC4YMclCzGwS/A==}
     engines: {node: '>=12'}
@@ -306,6 +312,12 @@ packages:
     cpu: [arm64]
     os: [android]
 
+  '@esbuild/android-arm64@0.27.7':
+    resolution: {integrity: sha512-62dPZHpIXzvChfvfLJow3q5dDtiNMkwiRzPylSCfriLvZeq0a1bWChrGx/BbUbPwOrsWKMn8idSllklzBy+dgQ==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [android]
+
   '@esbuild/android-arm@0.21.5':
     resolution: {integrity: sha512-vCPvzSjpPHEi1siZdlvAlsPxXl7WbOVUBBAowWug4rJHb68Ox8KualB+1ocNvT5fjv6wpkX6o/iEpbDrf68zcg==}
     engines: {node: '>=12'}
@@ -318,6 +330,12 @@ packages:
     cpu: [arm]
     os: [android]
 
+  '@esbuild/android-arm@0.27.7':
+    resolution: {integrity: sha512-jbPXvB4Yj2yBV7HUfE2KHe4GJX51QplCN1pGbYjvsyCZbQmies29EoJbkEc+vYuU5o45AfQn37vZlyXy4YJ8RQ==}
+    engines: {node: '>=18'}
+    cpu: [arm]
+    os: [android]
+
   '@esbuild/android-x64@0.21.5':
     resolution: {integrity: sha512-D7aPRUUNHRBwHxzxRvp856rjUHRFW1SdQATKXH2hqA0kAZb1hKmi02OpYRacl0TxIGz/ZmXWlbZgjwWYaCakTA==}
     engines: {node: '>=12'}
@@ -330,6 +348,12 @@ packages:
     cpu: [x64]
     os: [android]
 
+  '@esbuild/android-x64@0.27.7':
+    resolution: {integrity: sha512-x5VpMODneVDb70PYV2VQOmIUUiBtY3D3mPBG8NxVk5CogneYhkR7MmM3yR/uMdITLrC1ml/NV1rj4bMJuy9MCg==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [android]
+
   '@esbuild/darwin-arm64@0.21.5':
     resolution: {integrity: sha512-DwqXqZyuk5AiWWf3UfLiRDJ5EDd49zg6O9wclZ7kUMv2WRFr4HKjXp/5t8JZ11QbQfUS6/cRCKGwYhtNAY88kQ==}
     engines: {node: '>=12'}
@@ -342,6 +366,12 @@ packages:
     cpu: [arm64]
     os: [darwin]
 
+  '@esbuild/darwin-arm64@0.27.7':
+    resolution: {integrity: sha512-5lckdqeuBPlKUwvoCXIgI2D9/ABmPq3Rdp7IfL70393YgaASt7tbju3Ac+ePVi3KDH6N2RqePfHnXkaDtY9fkw==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [darwin]
+
   '@esbuild/darwin-x64@0.21.5':
     resolution: {integrity: sha512-se/JjF8NlmKVG4kNIuyWMV/22ZaerB+qaSi5MdrXtd6R08kvs2qCN4C09miupktDitvh8jRFflwGFBQcxZRjbw==}
     engines: {node: '>=12'}
@@ -354,6 +384,12 @@ packages:
     cpu: [x64]
     os: [darwin]
 
+  '@esbuild/darwin-x64@0.27.7':
+    resolution: {integrity: sha512-rYnXrKcXuT7Z+WL5K980jVFdvVKhCHhUwid+dDYQpH+qu+TefcomiMAJpIiC2EM3Rjtq0sO3StMV/+3w3MyyqQ==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [darwin]
+
   '@esbuild/freebsd-arm64@0.21.5':
     resolution: {integrity: sha512-5JcRxxRDUJLX8JXp/wcBCy3pENnCgBR9bN6JsY4OmhfUtIHe3ZW0mawA7+RDAcMLrMIZaf03NlQiX9DGyB8h4g==}
     engines: {node: '>=12'}
@@ -366,6 +402,12 @@ packages:
     cpu: [arm64]
     os: [freebsd]
 
+  '@esbuild/freebsd-arm64@0.27.7':
+    resolution: {integrity: sha512-B48PqeCsEgOtzME2GbNM2roU29AMTuOIN91dsMO30t+Ydis3z/3Ngoj5hhnsOSSwNzS+6JppqWsuhTp6E82l2w==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [freebsd]
+
   '@esbuild/freebsd-x64@0.21.5':
     resolution: {integrity: sha512-J95kNBj1zkbMXtHVH29bBriQygMXqoVQOQYA+ISs0/2l3T9/kj42ow2mpqerRBxDJnmkUDCaQT/dfNXWX/ZZCQ==}
     engines: {node: '>=12'}
@@ -378,6 +420,12 @@ packages:
     cpu: [x64]
     os: [freebsd]
 
+  '@esbuild/freebsd-x64@0.27.7':
+    resolution: {integrity: sha512-jOBDK5XEjA4m5IJK3bpAQF9/Lelu/Z9ZcdhTRLf4cajlB+8VEhFFRjWgfy3M1O4rO2GQ/b2dLwCUGpiF/eATNQ==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [freebsd]
+
   '@esbuild/linux-arm64@0.21.5':
     resolution: {integrity: sha512-ibKvmyYzKsBeX8d8I7MH/TMfWDXBF3db4qM6sy+7re0YXya+K1cem3on9XgdT2EQGMu4hQyZhan7TeQ8XkGp4Q==}
     engines: {node: '>=12'}
@@ -390,6 +438,12 @@ packages:
     cpu: [arm64]
     os: [linux]
 
+  '@esbuild/linux-arm64@0.27.7':
+    resolution: {integrity: sha512-RZPHBoxXuNnPQO9rvjh5jdkRmVizktkT7TCDkDmQ0W2SwHInKCAV95GRuvdSvA7w4VMwfCjUiPwDi0ZO6Nfe9A==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [linux]
+
   '@esbuild/linux-arm@0.21.5':
     resolution: {integrity: sha512-bPb5AHZtbeNGjCKVZ9UGqGwo8EUu4cLq68E95A53KlxAPRmUyYv2D6F0uUI65XisGOL1hBP5mTronbgo+0bFcA==}
     engines: {node: '>=12'}
@@ -402,6 +456,12 @@ packages:
     cpu: [arm]
     os: [linux]
 
+  '@esbuild/linux-arm@0.27.7':
+    resolution: {integrity: sha512-RkT/YXYBTSULo3+af8Ib0ykH8u2MBh57o7q/DAs3lTJlyVQkgQvlrPTnjIzzRPQyavxtPtfg0EopvDyIt0j1rA==}
+    engines: {node: '>=18'}
+    cpu: [arm]
+    os: [linux]
+
   '@esbuild/linux-ia32@0.21.5':
     resolution: {integrity: sha512-YvjXDqLRqPDl2dvRODYmmhz4rPeVKYvppfGYKSNGdyZkA01046pLWyRKKI3ax8fbJoK5QbxblURkwK/MWY18Tg==}
     engines: {node: '>=12'}
@@ -414,6 +474,12 @@ packages:
     cpu: [ia32]
     os: [linux]
 
+  '@esbuild/linux-ia32@0.27.7':
+    resolution: {integrity: sha512-GA48aKNkyQDbd3KtkplYWT102C5sn/EZTY4XROkxONgruHPU72l+gW+FfF8tf2cFjeHaRbWpOYa/uRBz/Xq1Pg==}
+    engines: {node: '>=18'}
+    cpu: [ia32]
+    os: [linux]
+
   '@esbuild/linux-loong64@0.21.5':
     resolution: {integrity: sha512-uHf1BmMG8qEvzdrzAqg2SIG/02+4/DHB6a9Kbya0XDvwDEKCoC8ZRWI5JJvNdUjtciBGFQ5PuBlpEOXQj+JQSg==}
     engines: {node: '>=12'}
@@ -426,6 +492,12 @@ packages:
     cpu: [loong64]
     os: [linux]
 
+  '@esbuild/linux-loong64@0.27.7':
+    resolution: {integrity: sha512-a4POruNM2oWsD4WKvBSEKGIiWQF8fZOAsycHOt6JBpZ+JN2n2JH9WAv56SOyu9X5IqAjqSIPTaJkqN8F7XOQ5Q==}
+    engines: {node: '>=18'}
+    cpu: [loong64]
+    os: [linux]
+
   '@esbuild/linux-mips64el@0.21.5':
     resolution: {integrity: sha512-IajOmO+KJK23bj52dFSNCMsz1QP1DqM6cwLUv3W1QwyxkyIWecfafnI555fvSGqEKwjMXVLokcV5ygHW5b3Jbg==}
     engines: {node: '>=12'}
@@ -438,6 +510,12 @@ packages:
     cpu: [mips64el]
     os: [linux]
 
+  '@esbuild/linux-mips64el@0.27.7':
+    resolution: {integrity: sha512-KabT5I6StirGfIz0FMgl1I+R1H73Gp0ofL9A3nG3i/cYFJzKHhouBV5VWK1CSgKvVaG4q1RNpCTR2LuTVB3fIw==}
+    engines: {node: '>=18'}
+    cpu: [mips64el]
+    os: [linux]
+
   '@esbuild/linux-ppc64@0.21.5':
     resolution: {integrity: sha512-1hHV/Z4OEfMwpLO8rp7CvlhBDnjsC3CttJXIhBi+5Aj5r+MBvy4egg7wCbe//hSsT+RvDAG7s81tAvpL2XAE4w==}
     engines: {node: '>=12'}
@@ -450,6 +528,12 @@ packages:
     cpu: [ppc64]
     os: [linux]
 
+  '@esbuild/linux-ppc64@0.27.7':
+    resolution: {integrity: sha512-gRsL4x6wsGHGRqhtI+ifpN/vpOFTQtnbsupUF5R5YTAg+y/lKelYR1hXbnBdzDjGbMYjVJLJTd2OFmMewAgwlQ==}
+    engines: {node: '>=18'}
+    cpu: [ppc64]
+    os: [linux]
+
   '@esbuild/linux-riscv64@0.21.5':
     resolution: {integrity: sha512-2HdXDMd9GMgTGrPWnJzP2ALSokE/0O5HhTUvWIbD3YdjME8JwvSCnNGBnTThKGEB91OZhzrJ4qIIxk/SBmyDDA==}
     engines: {node: '>=12'}
@@ -462,6 +546,12 @@ packages:
     cpu: [riscv64]
     os: [linux]
 
+  '@esbuild/linux-riscv64@0.27.7':
+    resolution: {integrity: sha512-hL25LbxO1QOngGzu2U5xeXtxXcW+/GvMN3ejANqXkxZ/opySAZMrc+9LY/WyjAan41unrR3YrmtTsUpwT66InQ==}
+    engines: {node: '>=18'}
+    cpu: [riscv64]
+    os: [linux]
+
   '@esbuild/linux-s390x@0.21.5':
     resolution: {integrity: sha512-zus5sxzqBJD3eXxwvjN1yQkRepANgxE9lgOW2qLnmr8ikMTphkjgXu1HR01K4FJg8h1kEEDAqDcZQtbrRnB41A==}
     engines: {node: '>=12'}
@@ -474,6 +564,12 @@ packages:
     cpu: [s390x]
     os: [linux]
 
+  '@esbuild/linux-s390x@0.27.7':
+    resolution: {integrity: sha512-2k8go8Ycu1Kb46vEelhu1vqEP+UeRVj2zY1pSuPdgvbd5ykAw82Lrro28vXUrRmzEsUV0NzCf54yARIK8r0fdw==}
+    engines: {node: '>=18'}
+    cpu: [s390x]
+    os: [linux]
+
   '@esbuild/linux-x64@0.21.5':
     resolution: {integrity: sha512-1rYdTpyv03iycF1+BhzrzQJCdOuAOtaqHTWJZCWvijKD2N5Xu0TtVC8/+1faWqcP9iBCWOmjmhoH94dH82BxPQ==}
     engines: {node: '>=12'}
@@ -486,12 +582,24 @@ packages:
     cpu: [x64]
     os: [linux]
 
+  '@esbuild/linux-x64@0.27.7':
+    resolution: {integrity: sha512-hzznmADPt+OmsYzw1EE33ccA+HPdIqiCRq7cQeL1Jlq2gb1+OyWBkMCrYGBJ+sxVzve2ZJEVeePbLM2iEIZSxA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [linux]
+
   '@esbuild/netbsd-arm64@0.25.11':
     resolution: {integrity: sha512-hr9Oxj1Fa4r04dNpWr3P8QKVVsjQhqrMSUzZzf+LZcYjZNqhA3IAfPQdEh1FLVUJSiu6sgAwp3OmwBfbFgG2Xg==}
     engines: {node: '>=18'}
     cpu: [arm64]
     os: [netbsd]
 
+  '@esbuild/netbsd-arm64@0.27.7':
+    resolution: {integrity: sha512-b6pqtrQdigZBwZxAn1UpazEisvwaIDvdbMbmrly7cDTMFnw/+3lVxxCTGOrkPVnsYIosJJXAsILG9XcQS+Yu6w==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [netbsd]
+
   '@esbuild/netbsd-x64@0.21.5':
     resolution: {integrity: sha512-Woi2MXzXjMULccIwMnLciyZH4nCIMpWQAs049KEeMvOcNADVxo0UBIQPfSmxB3CWKedngg7sWZdLvLczpe0tLg==}
     engines: {node: '>=12'}
@@ -504,12 +612,24 @@ packages:
     cpu: [x64]
     os: [netbsd]
 
+  '@esbuild/netbsd-x64@0.27.7':
+    resolution: {integrity: sha512-OfatkLojr6U+WN5EDYuoQhtM+1xco+/6FSzJJnuWiUw5eVcicbyK3dq5EeV/QHT1uy6GoDhGbFpprUiHUYggrw==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [netbsd]
+
   '@esbuild/openbsd-arm64@0.25.11':
     resolution: {integrity: sha512-Qq6YHhayieor3DxFOoYM1q0q1uMFYb7cSpLD2qzDSvK1NAvqFi8Xgivv0cFC6J+hWVw2teCYltyy9/m/14ryHg==}
     engines: {node: '>=18'}
     cpu: [arm64]
     os: [openbsd]
 
+  '@esbuild/openbsd-arm64@0.27.7':
+    resolution: {integrity: sha512-AFuojMQTxAz75Fo8idVcqoQWEHIXFRbOc1TrVcFSgCZtQfSdc1RXgB3tjOn/krRHENUB4j00bfGjyl2mJrU37A==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [openbsd]
+
   '@esbuild/openbsd-x64@0.21.5':
     resolution: {integrity: sha512-HLNNw99xsvx12lFBUwoT8EVCsSvRNDVxNpjZ7bPn947b8gJPzeHWyNVhFsaerc0n3TsbOINvRP2byTZ5LKezow==}
     engines: {node: '>=12'}
@@ -522,12 +642,24 @@ packages:
     cpu: [x64]
     os: [openbsd]
 
+  '@esbuild/openbsd-x64@0.27.7':
+    resolution: {integrity: sha512-+A1NJmfM8WNDv5CLVQYJ5PshuRm/4cI6WMZRg1by1GwPIQPCTs1GLEUHwiiQGT5zDdyLiRM/l1G0Pv54gvtKIg==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [openbsd]
+
   '@esbuild/openharmony-arm64@0.25.11':
     resolution: {integrity: sha512-rOREuNIQgaiR+9QuNkbkxubbp8MSO9rONmwP5nKncnWJ9v5jQ4JxFnLu4zDSRPf3x4u+2VN4pM4RdyIzDty/wQ==}
     engines: {node: '>=18'}
     cpu: [arm64]
     os: [openharmony]
 
+  '@esbuild/openharmony-arm64@0.27.7':
+    resolution: {integrity: sha512-+KrvYb/C8zA9CU/g0sR6w2RBw7IGc5J2BPnc3dYc5VJxHCSF1yNMxTV5LQ7GuKteQXZtspjFbiuW5/dOj7H4Yw==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [openharmony]
+
   '@esbuild/sunos-x64@0.21.5':
     resolution: {integrity: sha512-6+gjmFpfy0BHU5Tpptkuh8+uw3mnrvgs+dSPQXQOv3ekbordwnzTVEb4qnIvQcYXq6gzkyTnoZ9dZG+D4garKg==}
     engines: {node: '>=12'}
@@ -540,6 +672,12 @@ packages:
     cpu: [x64]
     os: [sunos]
 
+  '@esbuild/sunos-x64@0.27.7':
+    resolution: {integrity: sha512-ikktIhFBzQNt/QDyOL580ti9+5mL/YZeUPKU2ivGtGjdTYoqz6jObj6nOMfhASpS4GU4Q/Clh1QtxWAvcYKamA==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [sunos]
+
   '@esbuild/win32-arm64@0.21.5':
     resolution: {integrity: sha512-Z0gOTd75VvXqyq7nsl93zwahcTROgqvuAcYDUr+vOv8uHhNSKROyU961kgtCD1e95IqPKSQKH7tBTslnS3tA8A==}
     engines: {node: '>=12'}
@@ -552,6 +690,12 @@ packages:
     cpu: [arm64]
     os: [win32]
 
+  '@esbuild/win32-arm64@0.27.7':
+    resolution: {integrity: sha512-7yRhbHvPqSpRUV7Q20VuDwbjW5kIMwTHpptuUzV+AA46kiPze5Z7qgt6CLCK3pWFrHeNfDd1VKgyP4O+ng17CA==}
+    engines: {node: '>=18'}
+    cpu: [arm64]
+    os: [win32]
+
   '@esbuild/win32-ia32@0.21.5':
     resolution: {integrity: sha512-SWXFF1CL2RVNMaVs+BBClwtfZSvDgtL//G/smwAc5oVK/UPu2Gu9tIaRgFmYFFKrmg3SyAjSrElf0TiJ1v8fYA==}
     engines: {node: '>=12'}
@@ -564,6 +708,12 @@ packages:
     cpu: [ia32]
     os: [win32]
 
+  '@esbuild/win32-ia32@0.27.7':
+    resolution: {integrity: sha512-SmwKXe6VHIyZYbBLJrhOoCJRB/Z1tckzmgTLfFYOfpMAx63BJEaL9ExI8x7v0oAO3Zh6D/Oi1gVxEYr5oUCFhw==}
+    engines: {node: '>=18'}
+    cpu: [ia32]
+    os: [win32]
+
   '@esbuild/win32-x64@0.21.5':
     resolution: {integrity: sha512-tQd/1efJuzPC6rCFwEvLtci/xNFcTZknmXs98FYDfGE4wP9ClFV98nyKrzJKVPMhdDnjzLhdUyMX4PsQAPjwIw==}
     engines: {node: '>=12'}
@@ -576,6 +726,12 @@ packages:
     cpu: [x64]
     os: [win32]
 
+  '@esbuild/win32-x64@0.27.7':
+    resolution: {integrity: sha512-56hiAJPhwQ1R4i+21FVF7V8kSD5zZTdHcVuRFMW0hn753vVfQN8xlx4uOPT4xoGH0Z/oVATuR82AiqSTDIpaHg==}
+    engines: {node: '>=18'}
+    cpu: [x64]
+    os: [win32]
+
   '@eslint-community/eslint-utils@4.9.1':
     resolution: {integrity: sha512-phrYmNiYppR7znFEdqgfWHXR6NCkZEK7hwWDHZUjit/2/U0r6XvkDl0SYnoM51Hq7FhCGdLDT6zxCCOY1hexsQ==}
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
@@ -755,128 +911,128 @@ packages:
       rollup:
         optional: true
 
-  '@rollup/rollup-android-arm-eabi@4.59.0':
-    resolution: {integrity: sha512-upnNBkA6ZH2VKGcBj9Fyl9IGNPULcjXRlg0LLeaioQWueH30p6IXtJEbKAgvyv+mJaMxSm1l6xwDXYjpEMiLMg==}
+  '@rollup/rollup-android-arm-eabi@4.60.1':
+    resolution: {integrity: sha512-d6FinEBLdIiK+1uACUttJKfgZREXrF0Qc2SmLII7W2AD8FfiZ9Wjd+rD/iRuf5s5dWrr1GgwXCvPqOuDquOowA==}
     cpu: [arm]
     os: [android]
 
-  '@rollup/rollup-android-arm64@4.59.0':
-    resolution: {integrity: sha512-hZ+Zxj3SySm4A/DylsDKZAeVg0mvi++0PYVceVyX7hemkw7OreKdCvW2oQ3T1FMZvCaQXqOTHb8qmBShoqk69Q==}
+  '@rollup/rollup-android-arm64@4.60.1':
+    resolution: {integrity: sha512-YjG/EwIDvvYI1YvYbHvDz/BYHtkY4ygUIXHnTdLhG+hKIQFBiosfWiACWortsKPKU/+dUwQQCKQM3qrDe8c9BA==}
     cpu: [arm64]
     os: [android]
 
-  '@rollup/rollup-darwin-arm64@4.59.0':
-    resolution: {integrity: sha512-W2Psnbh1J8ZJw0xKAd8zdNgF9HRLkdWwwdWqubSVk0pUuQkoHnv7rx4GiF9rT4t5DIZGAsConRE3AxCdJ4m8rg==}
+  '@rollup/rollup-darwin-arm64@4.60.1':
+    resolution: {integrity: sha512-mjCpF7GmkRtSJwon+Rq1N8+pI+8l7w5g9Z3vWj4T7abguC4Czwi3Yu/pFaLvA3TTeMVjnu3ctigusqWUfjZzvw==}
     cpu: [arm64]
     os: [darwin]
 
-  '@rollup/rollup-darwin-x64@4.59.0':
-    resolution: {integrity: sha512-ZW2KkwlS4lwTv7ZVsYDiARfFCnSGhzYPdiOU4IM2fDbL+QGlyAbjgSFuqNRbSthybLbIJ915UtZBtmuLrQAT/w==}
+  '@rollup/rollup-darwin-x64@4.60.1':
+    resolution: {integrity: sha512-haZ7hJ1JT4e9hqkoT9R/19XW2QKqjfJVv+i5AGg57S+nLk9lQnJ1F/eZloRO3o9Scy9CM3wQ9l+dkXtcBgN5Ew==}
     cpu: [x64]
     os: [darwin]
 
-  '@rollup/rollup-freebsd-arm64@4.59.0':
-    resolution: {integrity: sha512-EsKaJ5ytAu9jI3lonzn3BgG8iRBjV4LxZexygcQbpiU0wU0ATxhNVEpXKfUa0pS05gTcSDMKpn3Sx+QB9RlTTA==}
+  '@rollup/rollup-freebsd-arm64@4.60.1':
+    resolution: {integrity: sha512-czw90wpQq3ZsAVBlinZjAYTKduOjTywlG7fEeWKUA7oCmpA8xdTkxZZlwNJKWqILlq0wehoZcJYfBvOyhPTQ6w==}
     cpu: [arm64]
     os: [freebsd]
 
-  '@rollup/rollup-freebsd-x64@4.59.0':
-    resolution: {integrity: sha512-d3DuZi2KzTMjImrxoHIAODUZYoUUMsuUiY4SRRcJy6NJoZ6iIqWnJu9IScV9jXysyGMVuW+KNzZvBLOcpdl3Vg==}
+  '@rollup/rollup-freebsd-x64@4.60.1':
+    resolution: {integrity: sha512-KVB2rqsxTHuBtfOeySEyzEOB7ltlB/ux38iu2rBQzkjbwRVlkhAGIEDiiYnO2kFOkJp+Z7pUXKyrRRFuFUKt+g==}
     cpu: [x64]
     os: [freebsd]
 
-  '@rollup/rollup-linux-arm-gnueabihf@4.59.0':
-    resolution: {integrity: sha512-t4ONHboXi/3E0rT6OZl1pKbl2Vgxf9vJfWgmUoCEVQVxhW6Cw/c8I6hbbu7DAvgp82RKiH7TpLwxnJeKv2pbsw==}
+  '@rollup/rollup-linux-arm-gnueabihf@4.60.1':
+    resolution: {integrity: sha512-L+34Qqil+v5uC0zEubW7uByo78WOCIrBvci69E7sFASRl0X7b/MB6Cqd1lky/CtcSVTydWa2WZwFuWexjS5o6g==}
     cpu: [arm]
     os: [linux]
 
-  '@rollup/rollup-linux-arm-musleabihf@4.59.0':
-    resolution: {integrity: sha512-CikFT7aYPA2ufMD086cVORBYGHffBo4K8MQ4uPS/ZnY54GKj36i196u8U+aDVT2LX4eSMbyHtyOh7D7Zvk2VvA==}
+  '@rollup/rollup-linux-arm-musleabihf@4.60.1':
+    resolution: {integrity: sha512-n83O8rt4v34hgFzlkb1ycniJh7IR5RCIqt6mz1VRJD6pmhRi0CXdmfnLu9dIUS6buzh60IvACM842Ffb3xd6Gg==}
     cpu: [arm]
     os: [linux]
 
-  '@rollup/rollup-linux-arm64-gnu@4.59.0':
-    resolution: {integrity: sha512-jYgUGk5aLd1nUb1CtQ8E+t5JhLc9x5WdBKew9ZgAXg7DBk0ZHErLHdXM24rfX+bKrFe+Xp5YuJo54I5HFjGDAA==}
+  '@rollup/rollup-linux-arm64-gnu@4.60.1':
+    resolution: {integrity: sha512-Nql7sTeAzhTAja3QXeAI48+/+GjBJ+QmAH13snn0AJSNL50JsDqotyudHyMbO2RbJkskbMbFJfIJKWA6R1LCJQ==}
     cpu: [arm64]
     os: [linux]
 
-  '@rollup/rollup-linux-arm64-musl@4.59.0':
-    resolution: {integrity: sha512-peZRVEdnFWZ5Bh2KeumKG9ty7aCXzzEsHShOZEFiCQlDEepP1dpUl/SrUNXNg13UmZl+gzVDPsiCwnV1uI0RUA==}
+  '@rollup/rollup-linux-arm64-musl@4.60.1':
+    resolution: {integrity: sha512-+pUymDhd0ys9GcKZPPWlFiZ67sTWV5UU6zOJat02M1+PiuSGDziyRuI/pPue3hoUwm2uGfxdL+trT6Z9rxnlMA==}
     cpu: [arm64]
     os: [linux]
 
-  '@rollup/rollup-linux-loong64-gnu@4.59.0':
-    resolution: {integrity: sha512-gbUSW/97f7+r4gHy3Jlup8zDG190AuodsWnNiXErp9mT90iCy9NKKU0Xwx5k8VlRAIV2uU9CsMnEFg/xXaOfXg==}
+  '@rollup/rollup-linux-loong64-gnu@4.60.1':
+    resolution: {integrity: sha512-VSvgvQeIcsEvY4bKDHEDWcpW4Yw7BtlKG1GUT4FzBUlEKQK0rWHYBqQt6Fm2taXS+1bXvJT6kICu5ZwqKCnvlQ==}
     cpu: [loong64]
     os: [linux]
 
-  '@rollup/rollup-linux-loong64-musl@4.59.0':
-    resolution: {integrity: sha512-yTRONe79E+o0FWFijasoTjtzG9EBedFXJMl888NBEDCDV9I2wGbFFfJQQe63OijbFCUZqxpHz1GzpbtSFikJ4Q==}
+  '@rollup/rollup-linux-loong64-musl@4.60.1':
+    resolution: {integrity: sha512-4LqhUomJqwe641gsPp6xLfhqWMbQV04KtPp7/dIp0nzPxAkNY1AbwL5W0MQpcalLYk07vaW9Kp1PBhdpZYYcEw==}
     cpu: [loong64]
     os: [linux]
 
-  '@rollup/rollup-linux-ppc64-gnu@4.59.0':
-    resolution: {integrity: sha512-sw1o3tfyk12k3OEpRddF68a1unZ5VCN7zoTNtSn2KndUE+ea3m3ROOKRCZxEpmT9nsGnogpFP9x6mnLTCaoLkA==}
+  '@rollup/rollup-linux-ppc64-gnu@4.60.1':
+    resolution: {integrity: sha512-tLQQ9aPvkBxOc/EUT6j3pyeMD6Hb8QF2BTBnCQWP/uu1lhc9AIrIjKnLYMEroIz/JvtGYgI9dF3AxHZNaEH0rw==}
     cpu: [ppc64]
     os: [linux]
 
-  '@rollup/rollup-linux-ppc64-musl@4.59.0':
-    resolution: {integrity: sha512-+2kLtQ4xT3AiIxkzFVFXfsmlZiG5FXYW7ZyIIvGA7Bdeuh9Z0aN4hVyXS/G1E9bTP/vqszNIN/pUKCk/BTHsKA==}
+  '@rollup/rollup-linux-ppc64-musl@4.60.1':
+    resolution: {integrity: sha512-RMxFhJwc9fSXP6PqmAz4cbv3kAyvD1etJFjTx4ONqFP9DkTkXsAMU4v3Vyc5BgzC+anz7nS/9tp4obsKfqkDHg==}
     cpu: [ppc64]
     os: [linux]
 
-  '@rollup/rollup-linux-riscv64-gnu@4.59.0':
-    resolution: {integrity: sha512-NDYMpsXYJJaj+I7UdwIuHHNxXZ/b/N2hR15NyH3m2qAtb/hHPA4g4SuuvrdxetTdndfj9b1WOmy73kcPRoERUg==}
+  '@rollup/rollup-linux-riscv64-gnu@4.60.1':
+    resolution: {integrity: sha512-QKgFl+Yc1eEk6MmOBfRHYF6lTxiiiV3/z/BRrbSiW2I7AFTXoBFvdMEyglohPj//2mZS4hDOqeB0H1ACh3sBbg==}
     cpu: [riscv64]
     os: [linux]
 
-  '@rollup/rollup-linux-riscv64-musl@4.59.0':
-    resolution: {integrity: sha512-nLckB8WOqHIf1bhymk+oHxvM9D3tyPndZH8i8+35p/1YiVoVswPid2yLzgX7ZJP0KQvnkhM4H6QZ5m0LzbyIAg==}
+  '@rollup/rollup-linux-riscv64-musl@4.60.1':
+    resolution: {integrity: sha512-RAjXjP/8c6ZtzatZcA1RaQr6O1TRhzC+adn8YZDnChliZHviqIjmvFwHcxi4JKPSDAt6Uhf/7vqcBzQJy0PDJg==}
     cpu: [riscv64]
     os: [linux]
 
-  '@rollup/rollup-linux-s390x-gnu@4.59.0':
-    resolution: {integrity: sha512-oF87Ie3uAIvORFBpwnCvUzdeYUqi2wY6jRFWJAy1qus/udHFYIkplYRW+wo+GRUP4sKzYdmE1Y3+rY5Gc4ZO+w==}
+  '@rollup/rollup-linux-s390x-gnu@4.60.1':
+    resolution: {integrity: sha512-wcuocpaOlaL1COBYiA89O6yfjlp3RwKDeTIA0hM7OpmhR1Bjo9j31G1uQVpDlTvwxGn2nQs65fBFL5UFd76FcQ==}
     cpu: [s390x]
     os: [linux]
 
-  '@rollup/rollup-linux-x64-gnu@4.59.0':
-    resolution: {integrity: sha512-3AHmtQq/ppNuUspKAlvA8HtLybkDflkMuLK4DPo77DfthRb71V84/c4MlWJXixZz4uruIH4uaa07IqoAkG64fg==}
+  '@rollup/rollup-linux-x64-gnu@4.60.1':
+    resolution: {integrity: sha512-77PpsFQUCOiZR9+LQEFg9GClyfkNXj1MP6wRnzYs0EeWbPcHs02AXu4xuUbM1zhwn3wqaizle3AEYg5aeoohhg==}
     cpu: [x64]
     os: [linux]
 
-  '@rollup/rollup-linux-x64-musl@4.59.0':
-    resolution: {integrity: sha512-2UdiwS/9cTAx7qIUZB/fWtToJwvt0Vbo0zmnYt7ED35KPg13Q0ym1g442THLC7VyI6JfYTP4PiSOWyoMdV2/xg==}
+  '@rollup/rollup-linux-x64-musl@4.60.1':
+    resolution: {integrity: sha512-5cIATbk5vynAjqqmyBjlciMJl1+R/CwX9oLk/EyiFXDWd95KpHdrOJT//rnUl4cUcskrd0jCCw3wpZnhIHdD9w==}
     cpu: [x64]
     os: [linux]
 
-  '@rollup/rollup-openbsd-x64@4.59.0':
-    resolution: {integrity: sha512-M3bLRAVk6GOwFlPTIxVBSYKUaqfLrn8l0psKinkCFxl4lQvOSz8ZrKDz2gxcBwHFpci0B6rttydI4IpS4IS/jQ==}
+  '@rollup/rollup-openbsd-x64@4.60.1':
+    resolution: {integrity: sha512-cl0w09WsCi17mcmWqqglez9Gk8isgeWvoUZ3WiJFYSR3zjBQc2J5/ihSjpl+VLjPqjQ/1hJRcqBfLjssREQILw==}
     cpu: [x64]
     os: [openbsd]
 
-  '@rollup/rollup-openharmony-arm64@4.59.0':
-    resolution: {integrity: sha512-tt9KBJqaqp5i5HUZzoafHZX8b5Q2Fe7UjYERADll83O4fGqJ49O1FsL6LpdzVFQcpwvnyd0i+K/VSwu/o/nWlA==}
+  '@rollup/rollup-openharmony-arm64@4.60.1':
+    resolution: {integrity: sha512-4Cv23ZrONRbNtbZa37mLSueXUCtN7MXccChtKpUnQNgF010rjrjfHx3QxkS2PI7LqGT5xXyYs1a7LbzAwT0iCA==}
     cpu: [arm64]
     os: [openharmony]
 
-  '@rollup/rollup-win32-arm64-msvc@4.59.0':
-    resolution: {integrity: sha512-V5B6mG7OrGTwnxaNUzZTDTjDS7F75PO1ae6MJYdiMu60sq0CqN5CVeVsbhPxalupvTX8gXVSU9gq+Rx1/hvu6A==}
+  '@rollup/rollup-win32-arm64-msvc@4.60.1':
+    resolution: {integrity: sha512-i1okWYkA4FJICtr7KpYzFpRTHgy5jdDbZiWfvny21iIKky5YExiDXP+zbXzm3dUcFpkEeYNHgQ5fuG236JPq0g==}
     cpu: [arm64]
     os: [win32]
 
-  '@rollup/rollup-win32-ia32-msvc@4.59.0':
-    resolution: {integrity: sha512-UKFMHPuM9R0iBegwzKF4y0C4J9u8C6MEJgFuXTBerMk7EJ92GFVFYBfOZaSGLu6COf7FxpQNqhNS4c4icUPqxA==}
+  '@rollup/rollup-win32-ia32-msvc@4.60.1':
+    resolution: {integrity: sha512-u09m3CuwLzShA0EYKMNiFgcjjzwqtUMLmuCJLeZWjjOYA3IT2Di09KaxGBTP9xVztWyIWjVdsB2E9goMjZvTQg==}
     cpu: [ia32]
     os: [win32]
 
-  '@rollup/rollup-win32-x64-gnu@4.59.0':
-    resolution: {integrity: sha512-laBkYlSS1n2L8fSo1thDNGrCTQMmxjYY5G0WFWjFFYZkKPjsMBsgJfGf4TLxXrF6RyhI60L8TMOjBMvXiTcxeA==}
+  '@rollup/rollup-win32-x64-gnu@4.60.1':
+    resolution: {integrity: sha512-k+600V9Zl1CM7eZxJgMyTUzmrmhB/0XZnF4pRypKAlAgxmedUA+1v9R+XOFv56W4SlHEzfeMtzujLJD22Uz5zg==}
     cpu: [x64]
     os: [win32]
 
-  '@rollup/rollup-win32-x64-msvc@4.59.0':
-    resolution: {integrity: sha512-2HRCml6OztYXyJXAvdDXPKcawukWY2GpR5/nxKp4iBgiO3wcoEGkAaqctIbZcNB6KlUQBIqt8VYkNSj2397EfA==}
+  '@rollup/rollup-win32-x64-msvc@4.60.1':
+    resolution: {integrity: sha512-lWMnixq/QzxyhTV6NjQJ4SFo1J6PvOX8vUx5Wb4bBPsEb+8xZ89Bz6kOXpfXj9ak9AHTQVQzlgzBEc1SyM27xQ==}
     cpu: [x64]
     os: [win32]
 
@@ -886,8 +1042,8 @@ packages:
     peerDependencies:
       eslint: '>=8.40.0'
 
-  '@sveltejs/acorn-typescript@1.0.5':
-    resolution: {integrity: sha512-IwQk4yfwLdibDlrXVE04jTZYlLnwsTT2PIOQQGNLWfjavGifnk1JD1LcZjZaBTRcxZu2FfPfNLOE04DSu9lqtQ==}
+  '@sveltejs/acorn-typescript@1.0.10':
+    resolution: {integrity: sha512-4WfKk68eTih+MiJD4fSbxN7E8kVBmTMPWHUPYjvl2N0rMs53YLTT8/YjKU5Dtnz5LqDjl7LEw4U7lXR2W3J5WA==}
     peerDependencies:
       acorn: ^8.9.0
 
@@ -1057,11 +1213,6 @@ packages:
     peerDependencies:
       acorn: ^6.0.0 || ^7.0.0 || ^8.0.0
 
-  acorn@8.15.0:
-    resolution: {integrity: sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==}
-    engines: {node: '>=0.4.0'}
-    hasBin: true
-
   acorn@8.16.0:
     resolution: {integrity: sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==}
     engines: {node: '>=0.4.0'}
@@ -1267,8 +1418,8 @@ packages:
     engines: {node: '>=0.10'}
     hasBin: true
 
-  devalue@5.6.4:
-    resolution: {integrity: sha512-Gp6rDldRsFh/7XuouDbxMH3Mx8GMCcgzIb1pDTvNyn8pZGQ22u+Wa+lGV9dQCltFQ7uVw0MhRyb8XDskNFOReA==}
+  devalue@5.8.1:
+    resolution: {integrity: sha512-4CXDYRBGqN+57wVJkuXBYmpAVUSg3L6JAQa/DFqm238G73E1wuyc/JhGQJzN7vUf/CMphYau2zXbfWzDR5aTEw==}
 
   dir-glob@3.0.1:
     resolution: {integrity: sha512-WkrWp9GR4KXfKGYzOLmTuGVi1UWFfws377n9cc55/tb6DuqyF6pcQ5AbiHEshaDpY9v6oaSr2XCDidGmMwdzIA==}
@@ -1293,8 +1444,8 @@ packages:
   emoji-regex@9.2.2:
     resolution: {integrity: sha512-L18DaJsXSUk2+42pv8mLs5jJT2hqFkFE4j21wOmgbUqsZ2hL72NsUU785g9RXgo3s0ZNgVl42TiHp3ZtOv/Vyg==}
 
-  enhanced-resolve@5.20.0:
-    resolution: {integrity: sha512-/ce7+jQ1PQ6rVXwe+jKEg5hW5ciicHwIQUagZkp6IufBoY3YDgdTTY1azVs0qoRgVmvsNB+rbjLJxDAeHHtwsQ==}
+  enhanced-resolve@5.20.1:
+    resolution: {integrity: sha512-Qohcme7V1inbAfvjItgw0EaxVX5q2rdVEZHRBrEQdRZTssLDGsL8Lwrznl8oQ/6kuTJONLaDcGjkNP247XEhcA==}
     engines: {node: '>=10.13.0'}
 
   enquirer@2.4.1:
@@ -1321,6 +1472,11 @@ packages:
     engines: {node: '>=18'}
     hasBin: true
 
+  esbuild@0.27.7:
+    resolution: {integrity: sha512-IxpibTjyVnmrIQo5aqNpCgoACA/dTKLTlhMHihVHhdkxKyPO1uBBthumT0rdHmcsk9uMonIWS0m4FljWzILh3w==}
+    engines: {node: '>=18'}
+    hasBin: true
+
   escape-string-regexp@4.0.0:
     resolution: {integrity: sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==}
     engines: {node: '>=10'}
@@ -1418,8 +1574,13 @@ packages:
     resolution: {integrity: sha512-Ap6G0WQwcU/LHsvLwON1fAQX9Zp0A2Y6Y/cJBl9r/JbW90Zyg4/zbG6zzKa2OTALELarYHmKu0GhpM5EO+7T0g==}
     engines: {node: '>=0.10'}
 
-  esrap@2.2.4:
-    resolution: {integrity: sha512-suICpxAmZ9A8bzJjEl/+rLJiDKC0X4gYWUxT6URAWBLvlXmtbZd5ySMu/N2ZGEtMCAmflUDPSehrP9BQcsGcSg==}
+  esrap@2.2.9:
+    resolution: {integrity: sha512-4KijP+NxCWthMCUC3qHbE6n4vCjqgJS1uAYKhuT/GWfFTf1Qyive2TgOjep+gzbSzRfnNyaN/UU9YmdOt8Eg0A==}
+    peerDependencies:
+      '@typescript-eslint/types': ^8.2.0
+    peerDependenciesMeta:
+      '@typescript-eslint/types':
+        optional: true
 
   esrecurse@4.3.0:
     resolution: {integrity: sha512-KmfKL3b6G+RXvP8N1vr3Tq1kL/oCFgn2NYXEtqP8/L3pKapUA4G8cFVaoF3SU323CD4XypR/ffioHmkti6/Tag==}
@@ -1523,8 +1684,8 @@ packages:
   function-bind@1.1.2:
     resolution: {integrity: sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==}
 
-  get-tsconfig@4.13.6:
-    resolution: {integrity: sha512-shZT/QMiSHc/YBLxxOkMtgSid5HFoauqCE3/exfsEcwg1WkeqjG+V40yBbBrsD+jW2HDXcs28xOfcbm2jI8Ddw==}
+  get-tsconfig@4.13.7:
+    resolution: {integrity: sha512-7tN6rFgBlMgpBML5j8typ92BKFi2sFQvIdpAqLA2beia5avZDrMs0FLZiM5etShWq5irVyGcGMEA1jcDaK7A/Q==}
 
   glob-parent@5.1.2:
     resolution: {integrity: sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==}
@@ -1974,12 +2135,12 @@ packages:
   picocolors@1.1.1:
     resolution: {integrity: sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==}
 
-  picomatch@2.3.1:
-    resolution: {integrity: sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==}
+  picomatch@2.3.2:
+    resolution: {integrity: sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA==}
     engines: {node: '>=8.6'}
 
-  picomatch@4.0.3:
-    resolution: {integrity: sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==}
+  picomatch@4.0.4:
+    resolution: {integrity: sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A==}
     engines: {node: '>=12'}
 
   pify@4.0.1:
@@ -2028,8 +2189,8 @@ packages:
     resolution: {integrity: sha512-8sLjZwK0R+JlxlYcTuVnyT2v+htpdrjDOKuMcOVdYjt52Lh8hWRYpxBPoKx/Zg+bcjc3wx6fmQevMmUztS/ccA==}
     engines: {node: '>=4'}
 
-  postcss@8.5.6:
-    resolution: {integrity: sha512-3Ybi1tAuwAP9s0r1UQ2J4n5Y0G05bJkpUIO0/bI9MhwmD70S5aTWbXGBwxHrelT+XM1k6dM0pk+SwNkpTRN7Pg==}
+  postcss@8.5.9:
+    resolution: {integrity: sha512-7a70Nsot+EMX9fFU3064K/kdHWZqGVY+BADLyXc8Dfv+mTLLVl6JzJpPaCZ2kQL9gIJvKXSLMHhqdRRjwQeFtw==}
     engines: {node: ^10 || ^12 || >=14}
 
   prelude-ls@1.2.1:
@@ -2092,8 +2253,8 @@ packages:
     resolution: {integrity: sha512-U9nH88a3fc/ekCF1l0/UP1IosiuIjyTh7hBvXVMHYgVcfGvt897Xguj2UOLDeI5BG2m7/uwyaLVT6fbtCwTyzw==}
     engines: {iojs: '>=1.0.0', node: '>=0.10.0'}
 
-  rollup@4.59.0:
-    resolution: {integrity: sha512-2oMpl67a3zCH9H79LeMcbDhXW/UmWG/y2zuqnF2jQq5uq9TbM9TVyXvA4+t+ne2IIkBdrLpAaRQAvo7YI/Yyeg==}
+  rollup@4.60.1:
+    resolution: {integrity: sha512-VmtB2rFU/GroZ4oL8+ZqXgSA38O6GR8KSIvWmEFv63pQ0G6KaBH9s07PO8XTXP4vI+3UJUEypOfjkGfmSBBR0w==}
     engines: {node: '>=18.0.0', npm: '>=8.0.0'}
     hasBin: true
 
@@ -2126,11 +2287,6 @@ packages:
     resolution: {integrity: sha512-xAg7SOnEhrm5zI3puOOKyy1OMcMlIJZYNJY7xLBwSze0UjhPLnWfj2GF2EpT0jmzaJKIWKHLsaSSajf35bcYnA==}
     engines: {node: '>=v12.22.7'}
 
-  semver@7.7.3:
-    resolution: {integrity: sha512-SdsKMrI9TdgjdweUSR9MweHA4EJ8YxHn8DFaDisvhVlUOe4BF1tLD7GAj0lIqWVl+dPb/rExr0Btby5loQm20Q==}
-    engines: {node: '>=10'}
-    hasBin: true
-
   semver@7.7.4:
     resolution: {integrity: sha512-vFKC2IEtQnVhpT78h1Yp8wzwrf8CM+MzKMHGJZfBtzhZNycRFnXsHk6E5TxIkkMsgNS7mdX3AGB7x2QM2di4lA==}
     engines: {node: '>=10'}
@@ -2232,8 +2388,8 @@ packages:
   symbol-tree@3.2.4:
     resolution: {integrity: sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw==}
 
-  tapable@2.3.0:
-    resolution: {integrity: sha512-g9ljZiwki/LfxmQADO3dEY1CbpmXT5Hm2fJ+QaGKwSXUylMybePR7/67YW7jOrrvjEgL1Fmz5kzyAjWVWLlucg==}
+  tapable@2.3.2:
+    resolution: {integrity: sha512-1MOpMXuhGzGL5TTCZFItxCc0AARf1EZFQkGqMm7ERKj8+Hgr5oLvJOVFcC+lRmR8hCe2S3jC4T5D7Vg/d7/fhA==}
     engines: {node: '>=6'}
 
   term-size@2.2.1:
@@ -2427,8 +2583,8 @@ packages:
       terser:
         optional: true
 
-  vite@7.1.11:
-    resolution: {integrity: sha512-uzcxnSDVjAopEUjljkWh8EIrg6tlzrjFUfMcR1EVsRDGwf/ccef0qQPRyOrROwhrTDaApueq+ja+KLPlzR/zdg==}
+  vite@7.3.2:
+    resolution: {integrity: sha512-Bby3NOsna2jsjfLVOHKes8sGwgl4TT0E6vvpYgnAYDIF/tie7MRaFthmKuHx1NSXjiTueXH3do80FMQgvEktRg==}
     engines: {node: ^20.19.0 || >=22.12.0}
     hasBin: true
     peerDependencies:
@@ -2620,7 +2776,7 @@ snapshots:
       outdent: 0.5.0
       prettier: 2.8.8
       resolve-from: 5.0.0
-      semver: 7.7.3
+      semver: 7.7.4
 
   '@changesets/assemble-release-plan@6.0.9':
     dependencies:
@@ -2629,7 +2785,7 @@ snapshots:
       '@changesets/should-skip-package': 0.1.2
       '@changesets/types': 6.1.0
       '@manypkg/get-packages': 1.1.3
-      semver: 7.7.3
+      semver: 7.7.4
 
   '@changesets/changelog-git@0.2.1':
     dependencies:
@@ -2662,7 +2818,7 @@ snapshots:
       package-manager-detector: 0.2.11
       picocolors: 1.1.1
       resolve-from: 5.0.0
-      semver: 7.7.3
+      semver: 7.7.4
       spawndamnit: 3.0.1
       term-size: 2.2.1
     transitivePeerDependencies:
@@ -2687,7 +2843,7 @@ snapshots:
       '@changesets/types': 6.1.0
       '@manypkg/get-packages': 1.1.3
       picocolors: 1.1.1
-      semver: 7.7.3
+      semver: 7.7.4
 
   '@changesets/get-github-info@0.5.2':
     dependencies:
@@ -2763,147 +2919,225 @@ snapshots:
   '@esbuild/aix-ppc64@0.25.11':
     optional: true
 
+  '@esbuild/aix-ppc64@0.27.7':
+    optional: true
+
   '@esbuild/android-arm64@0.21.5':
     optional: true
 
   '@esbuild/android-arm64@0.25.11':
     optional: true
 
+  '@esbuild/android-arm64@0.27.7':
+    optional: true
+
   '@esbuild/android-arm@0.21.5':
     optional: true
 
   '@esbuild/android-arm@0.25.11':
     optional: true
 
+  '@esbuild/android-arm@0.27.7':
+    optional: true
+
   '@esbuild/android-x64@0.21.5':
     optional: true
 
   '@esbuild/android-x64@0.25.11':
     optional: true
 
+  '@esbuild/android-x64@0.27.7':
+    optional: true
+
   '@esbuild/darwin-arm64@0.21.5':
     optional: true
 
   '@esbuild/darwin-arm64@0.25.11':
     optional: true
 
+  '@esbuild/darwin-arm64@0.27.7':
+    optional: true
+
   '@esbuild/darwin-x64@0.21.5':
     optional: true
 
   '@esbuild/darwin-x64@0.25.11':
     optional: true
 
+  '@esbuild/darwin-x64@0.27.7':
+    optional: true
+
   '@esbuild/freebsd-arm64@0.21.5':
     optional: true
 
   '@esbuild/freebsd-arm64@0.25.11':
     optional: true
 
+  '@esbuild/freebsd-arm64@0.27.7':
+    optional: true
+
   '@esbuild/freebsd-x64@0.21.5':
     optional: true
 
   '@esbuild/freebsd-x64@0.25.11':
     optional: true
 
+  '@esbuild/freebsd-x64@0.27.7':
+    optional: true
+
   '@esbuild/linux-arm64@0.21.5':
     optional: true
 
   '@esbuild/linux-arm64@0.25.11':
     optional: true
 
+  '@esbuild/linux-arm64@0.27.7':
+    optional: true
+
   '@esbuild/linux-arm@0.21.5':
     optional: true
 
   '@esbuild/linux-arm@0.25.11':
     optional: true
 
+  '@esbuild/linux-arm@0.27.7':
+    optional: true
+
   '@esbuild/linux-ia32@0.21.5':
     optional: true
 
   '@esbuild/linux-ia32@0.25.11':
     optional: true
 
+  '@esbuild/linux-ia32@0.27.7':
+    optional: true
+
   '@esbuild/linux-loong64@0.21.5':
     optional: true
 
   '@esbuild/linux-loong64@0.25.11':
     optional: true
 
+  '@esbuild/linux-loong64@0.27.7':
+    optional: true
+
   '@esbuild/linux-mips64el@0.21.5':
     optional: true
 
   '@esbuild/linux-mips64el@0.25.11':
     optional: true
 
+  '@esbuild/linux-mips64el@0.27.7':
+    optional: true
+
   '@esbuild/linux-ppc64@0.21.5':
     optional: true
 
   '@esbuild/linux-ppc64@0.25.11':
     optional: true
 
+  '@esbuild/linux-ppc64@0.27.7':
+    optional: true
+
   '@esbuild/linux-riscv64@0.21.5':
     optional: true
 
   '@esbuild/linux-riscv64@0.25.11':
     optional: true
 
+  '@esbuild/linux-riscv64@0.27.7':
+    optional: true
+
   '@esbuild/linux-s390x@0.21.5':
     optional: true
 
   '@esbuild/linux-s390x@0.25.11':
     optional: true
 
+  '@esbuild/linux-s390x@0.27.7':
+    optional: true
+
   '@esbuild/linux-x64@0.21.5':
     optional: true
 
   '@esbuild/linux-x64@0.25.11':
     optional: true
 
+  '@esbuild/linux-x64@0.27.7':
+    optional: true
+
   '@esbuild/netbsd-arm64@0.25.11':
     optional: true
 
+  '@esbuild/netbsd-arm64@0.27.7':
+    optional: true
+
   '@esbuild/netbsd-x64@0.21.5':
     optional: true
 
   '@esbuild/netbsd-x64@0.25.11':
     optional: true
 
+  '@esbuild/netbsd-x64@0.27.7':
+    optional: true
+
   '@esbuild/openbsd-arm64@0.25.11':
     optional: true
 
+  '@esbuild/openbsd-arm64@0.27.7':
+    optional: true
+
   '@esbuild/openbsd-x64@0.21.5':
     optional: true
 
   '@esbuild/openbsd-x64@0.25.11':
     optional: true
 
+  '@esbuild/openbsd-x64@0.27.7':
+    optional: true
+
   '@esbuild/openharmony-arm64@0.25.11':
     optional: true
 
+  '@esbuild/openharmony-arm64@0.27.7':
+    optional: true
+
   '@esbuild/sunos-x64@0.21.5':
     optional: true
 
   '@esbuild/sunos-x64@0.25.11':
     optional: true
 
+  '@esbuild/sunos-x64@0.27.7':
+    optional: true
+
   '@esbuild/win32-arm64@0.21.5':
     optional: true
 
   '@esbuild/win32-arm64@0.25.11':
     optional: true
 
+  '@esbuild/win32-arm64@0.27.7':
+    optional: true
+
   '@esbuild/win32-ia32@0.21.5':
     optional: true
 
   '@esbuild/win32-ia32@0.25.11':
     optional: true
 
+  '@esbuild/win32-ia32@0.27.7':
+    optional: true
+
   '@esbuild/win32-x64@0.21.5':
     optional: true
 
   '@esbuild/win32-x64@0.25.11':
     optional: true
 
+  '@esbuild/win32-x64@0.27.7':
+    optional: true
+
   '@eslint-community/eslint-utils@4.9.1(eslint@10.0.0)':
     dependencies:
       eslint: 10.0.0
@@ -3037,121 +3271,121 @@ snapshots:
 
   '@polka/url@1.0.0-next.25': {}
 
-  '@rollup/plugin-commonjs@28.0.1(rollup@4.59.0)':
+  '@rollup/plugin-commonjs@28.0.1(rollup@4.60.1)':
     dependencies:
-      '@rollup/pluginutils': 5.1.0(rollup@4.59.0)
+      '@rollup/pluginutils': 5.1.0(rollup@4.60.1)
       commondir: 1.0.1
       estree-walker: 2.0.2
-      fdir: 6.5.0(picomatch@4.0.3)
+      fdir: 6.5.0(picomatch@4.0.4)
       is-reference: 1.2.1
       magic-string: 0.30.17
-      picomatch: 4.0.3
+      picomatch: 4.0.4
     optionalDependencies:
-      rollup: 4.59.0
+      rollup: 4.60.1
 
-  '@rollup/plugin-node-resolve@15.3.0(rollup@4.59.0)':
+  '@rollup/plugin-node-resolve@15.3.0(rollup@4.60.1)':
     dependencies:
-      '@rollup/pluginutils': 5.1.0(rollup@4.59.0)
+      '@rollup/pluginutils': 5.1.0(rollup@4.60.1)
       '@types/resolve': 1.20.2
       deepmerge: 4.3.1
       is-module: 1.0.0
       resolve: 1.22.8
     optionalDependencies:
-      rollup: 4.59.0
+      rollup: 4.60.1
 
-  '@rollup/plugin-terser@0.4.4(rollup@4.59.0)':
+  '@rollup/plugin-terser@0.4.4(rollup@4.60.1)':
     dependencies:
       serialize-javascript: 6.0.2
       smob: 1.4.1
       terser: 5.27.0
     optionalDependencies:
-      rollup: 4.59.0
+      rollup: 4.60.1
 
-  '@rollup/plugin-virtual@3.0.2(rollup@4.59.0)':
+  '@rollup/plugin-virtual@3.0.2(rollup@4.60.1)':
     optionalDependencies:
-      rollup: 4.59.0
+      rollup: 4.60.1
 
-  '@rollup/pluginutils@5.1.0(rollup@4.59.0)':
+  '@rollup/pluginutils@5.1.0(rollup@4.60.1)':
     dependencies:
       '@types/estree': 1.0.8
       estree-walker: 2.0.2
-      picomatch: 2.3.1
+      picomatch: 2.3.2
     optionalDependencies:
-      rollup: 4.59.0
+      rollup: 4.60.1
 
-  '@rollup/rollup-android-arm-eabi@4.59.0':
+  '@rollup/rollup-android-arm-eabi@4.60.1':
     optional: true
 
-  '@rollup/rollup-android-arm64@4.59.0':
+  '@rollup/rollup-android-arm64@4.60.1':
     optional: true
 
-  '@rollup/rollup-darwin-arm64@4.59.0':
+  '@rollup/rollup-darwin-arm64@4.60.1':
     optional: true
 
-  '@rollup/rollup-darwin-x64@4.59.0':
+  '@rollup/rollup-darwin-x64@4.60.1':
     optional: true
 
-  '@rollup/rollup-freebsd-arm64@4.59.0':
+  '@rollup/rollup-freebsd-arm64@4.60.1':
     optional: true
 
-  '@rollup/rollup-freebsd-x64@4.59.0':
+  '@rollup/rollup-freebsd-x64@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-arm-gnueabihf@4.59.0':
+  '@rollup/rollup-linux-arm-gnueabihf@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-arm-musleabihf@4.59.0':
+  '@rollup/rollup-linux-arm-musleabihf@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-arm64-gnu@4.59.0':
+  '@rollup/rollup-linux-arm64-gnu@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-arm64-musl@4.59.0':
+  '@rollup/rollup-linux-arm64-musl@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-loong64-gnu@4.59.0':
+  '@rollup/rollup-linux-loong64-gnu@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-loong64-musl@4.59.0':
+  '@rollup/rollup-linux-loong64-musl@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-ppc64-gnu@4.59.0':
+  '@rollup/rollup-linux-ppc64-gnu@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-ppc64-musl@4.59.0':
+  '@rollup/rollup-linux-ppc64-musl@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-riscv64-gnu@4.59.0':
+  '@rollup/rollup-linux-riscv64-gnu@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-riscv64-musl@4.59.0':
+  '@rollup/rollup-linux-riscv64-musl@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-s390x-gnu@4.59.0':
+  '@rollup/rollup-linux-s390x-gnu@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-x64-gnu@4.59.0':
+  '@rollup/rollup-linux-x64-gnu@4.60.1':
     optional: true
 
-  '@rollup/rollup-linux-x64-musl@4.59.0':
+  '@rollup/rollup-linux-x64-musl@4.60.1':
     optional: true
 
-  '@rollup/rollup-openbsd-x64@4.59.0':
+  '@rollup/rollup-openbsd-x64@4.60.1':
     optional: true
 
-  '@rollup/rollup-openharmony-arm64@4.59.0':
+  '@rollup/rollup-openharmony-arm64@4.60.1':
     optional: true
 
-  '@rollup/rollup-win32-arm64-msvc@4.59.0':
+  '@rollup/rollup-win32-arm64-msvc@4.60.1':
     optional: true
 
-  '@rollup/rollup-win32-ia32-msvc@4.59.0':
+  '@rollup/rollup-win32-ia32-msvc@4.60.1':
     optional: true
 
-  '@rollup/rollup-win32-x64-gnu@4.59.0':
+  '@rollup/rollup-win32-x64-gnu@4.60.1':
     optional: true
 
-  '@rollup/rollup-win32-x64-msvc@4.59.0':
+  '@rollup/rollup-win32-x64-msvc@4.60.1':
     optional: true
 
   '@stylistic/eslint-plugin-js@1.8.0(eslint@10.0.0)':
@@ -3163,9 +3397,9 @@ snapshots:
       eslint-visitor-keys: 3.4.3
       espree: 9.6.1
 
-  '@sveltejs/acorn-typescript@1.0.5(acorn@8.15.0)':
+  '@sveltejs/acorn-typescript@1.0.10(acorn@8.16.0)':
     dependencies:
-      acorn: 8.15.0
+      acorn: 8.16.0
 
   '@sveltejs/eslint-config@9.0.0(@eslint/js@10.0.1(eslint@10.0.0))(@stylistic/eslint-plugin-js@1.8.0(eslint@10.0.0))(eslint-config-prettier@9.1.0(eslint@10.0.0))(eslint-plugin-n@17.24.0(eslint@10.0.0)(typescript@5.5.4))(eslint-plugin-svelte@3.15.0(eslint@10.0.0)(svelte@packages+svelte))(eslint@10.0.0)(typescript-eslint@8.56.0(eslint@10.0.0)(typescript@5.5.4))(typescript@5.5.4)':
     dependencies:
@@ -3179,24 +3413,24 @@ snapshots:
       typescript: 5.5.4
       typescript-eslint: 8.56.0(eslint@10.0.0)(typescript@5.5.4)
 
-  '@sveltejs/vite-plugin-svelte-inspector@5.0.1(@sveltejs/vite-plugin-svelte@6.2.0(svelte@packages+svelte)(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)))(svelte@packages+svelte)(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))':
+  '@sveltejs/vite-plugin-svelte-inspector@5.0.1(@sveltejs/vite-plugin-svelte@6.2.0(svelte@packages+svelte)(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)))(svelte@packages+svelte)(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))':
     dependencies:
-      '@sveltejs/vite-plugin-svelte': 6.2.0(svelte@packages+svelte)(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
+      '@sveltejs/vite-plugin-svelte': 6.2.0(svelte@packages+svelte)(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
       debug: 4.4.3
       svelte: link:packages/svelte
-      vite: 7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
+      vite: 7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
     transitivePeerDependencies:
       - supports-color
 
-  '@sveltejs/vite-plugin-svelte@6.2.0(svelte@packages+svelte)(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))':
+  '@sveltejs/vite-plugin-svelte@6.2.0(svelte@packages+svelte)(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))':
     dependencies:
-      '@sveltejs/vite-plugin-svelte-inspector': 5.0.1(@sveltejs/vite-plugin-svelte@6.2.0(svelte@packages+svelte)(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)))(svelte@packages+svelte)(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
+      '@sveltejs/vite-plugin-svelte-inspector': 5.0.1(@sveltejs/vite-plugin-svelte@6.2.0(svelte@packages+svelte)(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)))(svelte@packages+svelte)(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
       debug: 4.4.3
       deepmerge: 4.3.1
       magic-string: 0.30.17
       svelte: link:packages/svelte
-      vite: 7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
-      vitefu: 1.1.1(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
+      vite: 7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
+      vitefu: 1.1.1(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
     transitivePeerDependencies:
       - supports-color
 
@@ -3304,7 +3538,7 @@ snapshots:
       '@typescript-eslint/visitor-keys': 8.56.0
       debug: 4.4.3
       minimatch: 9.0.5
-      semver: 7.7.3
+      semver: 7.7.4
       tinyglobby: 0.2.15
       ts-api-utils: 2.4.0(typescript@5.5.4)
       typescript: 5.5.4
@@ -3385,16 +3619,10 @@ snapshots:
       loupe: 3.2.1
       tinyrainbow: 1.2.0
 
-  acorn-jsx@5.3.2(acorn@8.15.0):
-    dependencies:
-      acorn: 8.15.0
-
   acorn-jsx@5.3.2(acorn@8.16.0):
     dependencies:
       acorn: 8.16.0
 
-  acorn@8.15.0: {}
-
   acorn@8.16.0: {}
 
   agent-base@7.1.1:
@@ -3427,7 +3655,7 @@ snapshots:
   anymatch@3.1.3:
     dependencies:
       normalize-path: 3.0.0
-      picomatch: 2.3.1
+      picomatch: 2.3.2
     optional: true
 
   argparse@1.0.10:
@@ -3563,7 +3791,7 @@ snapshots:
   detect-libc@1.0.3:
     optional: true
 
-  devalue@5.6.4: {}
+  devalue@5.8.1: {}
 
   dir-glob@3.0.1:
     dependencies:
@@ -3589,10 +3817,10 @@ snapshots:
 
   emoji-regex@9.2.2: {}
 
-  enhanced-resolve@5.20.0:
+  enhanced-resolve@5.20.1:
     dependencies:
       graceful-fs: 4.2.11
-      tapable: 2.3.0
+      tapable: 2.3.2
 
   enquirer@2.4.1:
     dependencies:
@@ -3660,6 +3888,35 @@ snapshots:
       '@esbuild/win32-ia32': 0.25.11
       '@esbuild/win32-x64': 0.25.11
 
+  esbuild@0.27.7:
+    optionalDependencies:
+      '@esbuild/aix-ppc64': 0.27.7
+      '@esbuild/android-arm': 0.27.7
+      '@esbuild/android-arm64': 0.27.7
+      '@esbuild/android-x64': 0.27.7
+      '@esbuild/darwin-arm64': 0.27.7
+      '@esbuild/darwin-x64': 0.27.7
+      '@esbuild/freebsd-arm64': 0.27.7
+      '@esbuild/freebsd-x64': 0.27.7
+      '@esbuild/linux-arm': 0.27.7
+      '@esbuild/linux-arm64': 0.27.7
+      '@esbuild/linux-ia32': 0.27.7
+      '@esbuild/linux-loong64': 0.27.7
+      '@esbuild/linux-mips64el': 0.27.7
+      '@esbuild/linux-ppc64': 0.27.7
+      '@esbuild/linux-riscv64': 0.27.7
+      '@esbuild/linux-s390x': 0.27.7
+      '@esbuild/linux-x64': 0.27.7
+      '@esbuild/netbsd-arm64': 0.27.7
+      '@esbuild/netbsd-x64': 0.27.7
+      '@esbuild/openbsd-arm64': 0.27.7
+      '@esbuild/openbsd-x64': 0.27.7
+      '@esbuild/openharmony-arm64': 0.27.7
+      '@esbuild/sunos-x64': 0.27.7
+      '@esbuild/win32-arm64': 0.27.7
+      '@esbuild/win32-ia32': 0.27.7
+      '@esbuild/win32-x64': 0.27.7
+
   escape-string-regexp@4.0.0: {}
 
   eslint-compat-utils@0.5.1(eslint@10.0.0):
@@ -3685,10 +3942,10 @@ snapshots:
   eslint-plugin-n@17.24.0(eslint@10.0.0)(typescript@5.5.4):
     dependencies:
       '@eslint-community/eslint-utils': 4.9.1(eslint@10.0.0)
-      enhanced-resolve: 5.20.0
+      enhanced-resolve: 5.20.1
       eslint: 10.0.0
       eslint-plugin-es-x: 7.8.0(eslint@10.0.0)
-      get-tsconfig: 4.13.6
+      get-tsconfig: 4.13.7
       globals: 15.15.0
       globrex: 0.1.2
       ignore: 5.3.2
@@ -3705,10 +3962,10 @@ snapshots:
       esutils: 2.0.3
       globals: 16.3.0
       known-css-properties: 0.37.0
-      postcss: 8.5.6
-      postcss-load-config: 3.1.4(postcss@8.5.6)
-      postcss-safe-parser: 7.0.1(postcss@8.5.6)
-      semver: 7.7.3
+      postcss: 8.5.9
+      postcss-load-config: 3.1.4(postcss@8.5.9)
+      postcss-safe-parser: 7.0.1(postcss@8.5.9)
+      semver: 7.7.4
       svelte-eslint-parser: 1.4.1(svelte@packages+svelte)
     optionalDependencies:
       svelte: link:packages/svelte
@@ -3772,14 +4029,14 @@ snapshots:
 
   espree@10.1.0:
     dependencies:
-      acorn: 8.15.0
-      acorn-jsx: 5.3.2(acorn@8.15.0)
+      acorn: 8.16.0
+      acorn-jsx: 5.3.2(acorn@8.16.0)
       eslint-visitor-keys: 4.2.1
 
   espree@11.1.0:
     dependencies:
-      acorn: 8.15.0
-      acorn-jsx: 5.3.2(acorn@8.15.0)
+      acorn: 8.16.0
+      acorn-jsx: 5.3.2(acorn@8.16.0)
       eslint-visitor-keys: 5.0.0
 
   espree@9.6.1:
@@ -3794,9 +4051,10 @@ snapshots:
     dependencies:
       estraverse: 5.3.0
 
-  esrap@2.2.4:
+  esrap@2.2.9(@typescript-eslint/types@8.56.0):
     dependencies:
       '@jridgewell/sourcemap-codec': 1.5.0
+    optionalDependencies:
       '@typescript-eslint/types': 8.56.0
 
   esrecurse@4.3.0:
@@ -3835,9 +4093,9 @@ snapshots:
     dependencies:
       reusify: 1.0.4
 
-  fdir@6.5.0(picomatch@4.0.3):
+  fdir@6.5.0(picomatch@4.0.4):
     optionalDependencies:
-      picomatch: 4.0.3
+      picomatch: 4.0.4
 
   file-entry-cache@8.0.0:
     dependencies:
@@ -3895,7 +4153,7 @@ snapshots:
 
   function-bind@1.1.2: {}
 
-  get-tsconfig@4.13.6:
+  get-tsconfig@4.13.7:
     dependencies:
       resolve-pkg-maps: 1.0.0
 
@@ -4188,14 +4446,14 @@ snapshots:
 
   make-dir@4.0.0:
     dependencies:
-      semver: 7.7.3
+      semver: 7.7.4
 
   merge2@1.4.1: {}
 
   micromatch@4.0.8:
     dependencies:
       braces: 3.0.3
-      picomatch: 2.3.1
+      picomatch: 2.3.2
 
   mime-db@1.52.0: {}
 
@@ -4309,9 +4567,9 @@ snapshots:
 
   picocolors@1.1.1: {}
 
-  picomatch@2.3.1: {}
+  picomatch@2.3.2: {}
 
-  picomatch@4.0.3: {}
+  picomatch@4.0.4: {}
 
   pify@4.0.1: {}
 
@@ -4328,27 +4586,27 @@ snapshots:
       '@polka/url': 1.0.0-next.25
       trouter: 4.0.0
 
-  postcss-load-config@3.1.4(postcss@8.5.6):
+  postcss-load-config@3.1.4(postcss@8.5.9):
     dependencies:
       lilconfig: 2.1.0
       yaml: 1.10.2
     optionalDependencies:
-      postcss: 8.5.6
+      postcss: 8.5.9
 
-  postcss-safe-parser@7.0.1(postcss@8.5.6):
+  postcss-safe-parser@7.0.1(postcss@8.5.9):
     dependencies:
-      postcss: 8.5.6
+      postcss: 8.5.9
 
-  postcss-scss@4.0.9(postcss@8.5.6):
+  postcss-scss@4.0.9(postcss@8.5.9):
     dependencies:
-      postcss: 8.5.6
+      postcss: 8.5.9
 
   postcss-selector-parser@7.1.0:
     dependencies:
       cssesc: 3.0.0
       util-deprecate: 1.0.2
 
-  postcss@8.5.6:
+  postcss@8.5.9:
     dependencies:
       nanoid: 3.3.11
       picocolors: 1.1.1
@@ -4384,7 +4642,7 @@ snapshots:
 
   readdirp@3.6.0:
     dependencies:
-      picomatch: 2.3.1
+      picomatch: 2.3.2
     optional: true
 
   regexparam@3.0.0: {}
@@ -4401,35 +4659,35 @@ snapshots:
 
   reusify@1.0.4: {}
 
-  rollup@4.59.0:
+  rollup@4.60.1:
     dependencies:
       '@types/estree': 1.0.8
     optionalDependencies:
-      '@rollup/rollup-android-arm-eabi': 4.59.0
-      '@rollup/rollup-android-arm64': 4.59.0
-      '@rollup/rollup-darwin-arm64': 4.59.0
-      '@rollup/rollup-darwin-x64': 4.59.0
-      '@rollup/rollup-freebsd-arm64': 4.59.0
-      '@rollup/rollup-freebsd-x64': 4.59.0
-      '@rollup/rollup-linux-arm-gnueabihf': 4.59.0
-      '@rollup/rollup-linux-arm-musleabihf': 4.59.0
-      '@rollup/rollup-linux-arm64-gnu': 4.59.0
-      '@rollup/rollup-linux-arm64-musl': 4.59.0
-      '@rollup/rollup-linux-loong64-gnu': 4.59.0
-      '@rollup/rollup-linux-loong64-musl': 4.59.0
-      '@rollup/rollup-linux-ppc64-gnu': 4.59.0
-      '@rollup/rollup-linux-ppc64-musl': 4.59.0
-      '@rollup/rollup-linux-riscv64-gnu': 4.59.0
-      '@rollup/rollup-linux-riscv64-musl': 4.59.0
-      '@rollup/rollup-linux-s390x-gnu': 4.59.0
-      '@rollup/rollup-linux-x64-gnu': 4.59.0
-      '@rollup/rollup-linux-x64-musl': 4.59.0
-      '@rollup/rollup-openbsd-x64': 4.59.0
-      '@rollup/rollup-openharmony-arm64': 4.59.0
-      '@rollup/rollup-win32-arm64-msvc': 4.59.0
-      '@rollup/rollup-win32-ia32-msvc': 4.59.0
-      '@rollup/rollup-win32-x64-gnu': 4.59.0
-      '@rollup/rollup-win32-x64-msvc': 4.59.0
+      '@rollup/rollup-android-arm-eabi': 4.60.1
+      '@rollup/rollup-android-arm64': 4.60.1
+      '@rollup/rollup-darwin-arm64': 4.60.1
+      '@rollup/rollup-darwin-x64': 4.60.1
+      '@rollup/rollup-freebsd-arm64': 4.60.1
+      '@rollup/rollup-freebsd-x64': 4.60.1
+      '@rollup/rollup-linux-arm-gnueabihf': 4.60.1
+      '@rollup/rollup-linux-arm-musleabihf': 4.60.1
+      '@rollup/rollup-linux-arm64-gnu': 4.60.1
+      '@rollup/rollup-linux-arm64-musl': 4.60.1
+      '@rollup/rollup-linux-loong64-gnu': 4.60.1
+      '@rollup/rollup-linux-loong64-musl': 4.60.1
+      '@rollup/rollup-linux-ppc64-gnu': 4.60.1
+      '@rollup/rollup-linux-ppc64-musl': 4.60.1
+      '@rollup/rollup-linux-riscv64-gnu': 4.60.1
+      '@rollup/rollup-linux-riscv64-musl': 4.60.1
+      '@rollup/rollup-linux-s390x-gnu': 4.60.1
+      '@rollup/rollup-linux-x64-gnu': 4.60.1
+      '@rollup/rollup-linux-x64-musl': 4.60.1
+      '@rollup/rollup-openbsd-x64': 4.60.1
+      '@rollup/rollup-openharmony-arm64': 4.60.1
+      '@rollup/rollup-win32-arm64-msvc': 4.60.1
+      '@rollup/rollup-win32-ia32-msvc': 4.60.1
+      '@rollup/rollup-win32-x64-gnu': 4.60.1
+      '@rollup/rollup-win32-x64-msvc': 4.60.1
       fsevents: 2.3.3
 
   rrweb-cssom@0.7.1: {}
@@ -4459,8 +4717,6 @@ snapshots:
     dependencies:
       xmlchars: 2.2.0
 
-  semver@7.7.3: {}
-
   semver@7.7.4: {}
 
   serialize-javascript@6.0.2:
@@ -4542,22 +4798,22 @@ snapshots:
       eslint-scope: 8.4.0
       eslint-visitor-keys: 4.2.1
       espree: 10.1.0
-      postcss: 8.5.6
-      postcss-scss: 4.0.9(postcss@8.5.6)
+      postcss: 8.5.9
+      postcss-scss: 4.0.9(postcss@8.5.9)
       postcss-selector-parser: 7.1.0
     optionalDependencies:
       svelte: link:packages/svelte
 
   symbol-tree@3.2.4: {}
 
-  tapable@2.3.0: {}
+  tapable@2.3.2: {}
 
   term-size@2.2.1: {}
 
   terser@5.27.0:
     dependencies:
       '@jridgewell/source-map': 0.3.6
-      acorn: 8.15.0
+      acorn: 8.16.0
       commander: 2.20.3
       source-map-support: 0.5.21
 
@@ -4573,8 +4829,8 @@ snapshots:
 
   tinyglobby@0.2.15:
     dependencies:
-      fdir: 6.5.0(picomatch@4.0.3)
-      picomatch: 4.0.3
+      fdir: 6.5.0(picomatch@4.0.4)
+      picomatch: 4.0.4
 
   tinypool@1.1.1: {}
 
@@ -4620,7 +4876,7 @@ snapshots:
 
   ts-declaration-location@1.0.7(typescript@5.5.4):
     dependencies:
-      picomatch: 4.0.3
+      picomatch: 4.0.4
       typescript: 5.5.4
 
   type-check@0.4.0:
@@ -4649,7 +4905,7 @@ snapshots:
   unplugin-utils@0.3.0:
     dependencies:
       pathe: 2.0.3
-      picomatch: 4.0.3
+      picomatch: 4.0.4
 
   uri-js@4.4.1:
     dependencies:
@@ -4661,15 +4917,15 @@ snapshots:
 
   v8-natives@1.2.5: {}
 
-  vite-dev-rpc@1.1.0(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
+  vite-dev-rpc@1.1.0(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
     dependencies:
       birpc: 2.5.0
-      vite: 7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
-      vite-hot-client: 2.1.0(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
+      vite: 7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
+      vite-hot-client: 2.1.0(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
 
-  vite-hot-client@2.1.0(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
+  vite-hot-client@2.1.0(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
     dependencies:
-      vite: 7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
+      vite: 7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
 
   vite-node@2.1.9(@types/node@20.19.17)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0):
     dependencies:
@@ -4689,12 +4945,12 @@ snapshots:
       - supports-color
       - terser
 
-  vite-plugin-devtools-json@1.0.0(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
+  vite-plugin-devtools-json@1.0.0(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
     dependencies:
       uuid: 11.1.0
-      vite: 7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
+      vite: 7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
 
-  vite-plugin-inspect@11.3.3(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
+  vite-plugin-inspect@11.3.3(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
     dependencies:
       ansis: 4.1.0
       debug: 4.4.3
@@ -4704,16 +4960,16 @@ snapshots:
       perfect-debounce: 2.0.0
       sirv: 3.0.2
       unplugin-utils: 0.3.0
-      vite: 7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
-      vite-dev-rpc: 1.1.0(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
+      vite: 7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
+      vite-dev-rpc: 1.1.0(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0))
     transitivePeerDependencies:
       - supports-color
 
   vite@5.4.20(@types/node@20.19.17)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0):
     dependencies:
       esbuild: 0.21.5
-      postcss: 8.5.6
-      rollup: 4.59.0
+      postcss: 8.5.9
+      rollup: 4.60.1
     optionalDependencies:
       '@types/node': 20.19.17
       fsevents: 2.3.3
@@ -4721,13 +4977,13 @@ snapshots:
       sass: 1.70.0
       terser: 5.27.0
 
-  vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0):
+  vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0):
     dependencies:
-      esbuild: 0.25.11
-      fdir: 6.5.0(picomatch@4.0.3)
-      picomatch: 4.0.3
-      postcss: 8.5.6
-      rollup: 4.59.0
+      esbuild: 0.27.7
+      fdir: 6.5.0(picomatch@4.0.4)
+      picomatch: 4.0.4
+      postcss: 8.5.9
+      rollup: 4.60.1
       tinyglobby: 0.2.15
     optionalDependencies:
       '@types/node': 24.5.2
@@ -4736,9 +4992,9 @@ snapshots:
       sass: 1.70.0
       terser: 5.27.0
 
-  vitefu@1.1.1(vite@7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
+  vitefu@1.1.1(vite@7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)):
     optionalDependencies:
-      vite: 7.1.11(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
+      vite: 7.3.2(@types/node@24.5.2)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0)
 
   vitest@2.1.9(@types/node@20.19.17)(jsdom@25.0.1)(lightningcss@1.23.0)(sass@1.70.0)(terser@5.27.0):
     dependencies: