- breaking: Bundlers must specify the `browser` condition when building a frontend bundle for the browser ([#8516](https://github.com/sveltejs/svelte/pull/8516))
- breaking: Bundlers must specify the `browser` condition when building a frontend bundle for the browser ([#8516](https://github.com/sveltejs/svelte/pull/8516))
- breaking: Minimum supported vite-plugin-svelte version is now 2.4.1. SvelteKit users can upgrade to 1.20.0 or newer to ensure a compatible version ([#8516]
- breaking: Minimum supported vite-plugin-svelte version is now 2.4.1. SvelteKit users can upgrade to 1.20.0 or newer to ensure a compatible version ([#8516](https://github.com/sveltejs/svelte/pull/8516))
(https://github.com/sveltejs/svelte/pull/8516))
- breaking: Minimum supported `rollup-plugin-svelte` version is now 7.1.5 ([198dbcf](https://github.com/sveltejs/svelte/commit/198dbcf))
- breaking: Minimum supported `rollup-plugin-svelte` version is now 7.1.5 ([198dbcf](https://github.com/sveltejs/svelte/commit/198dbcf))
- breaking: Minimum supported `svelte-loader` is now 3.1.8 ([198dbcf](https://github.com/sveltejs/svelte/commit/198dbcf))
- breaking: Minimum supported `svelte-loader` is now 3.1.8 ([198dbcf](https://github.com/sveltejs/svelte/commit/198dbcf))
- breaking: Minimum supported TypeScript version is now TypeScript 5 (it will likely work with lower versions, but we make no guarantees about that) ([#8488]
- breaking: Minimum supported TypeScript version is now TypeScript 5 (it will likely work with lower versions, but we make no guarantees about that) ([#8488](https://github.com/sveltejs/svelte/pull/8488))
(https://github.com/sveltejs/svelte/pull/8488))
- breaking: Remove `svelte/register` hook, CJS runtime version and CJS compiler output ([#8613](https://github.com/sveltejs/svelte/pull/8613))
- breaking: Remove `svelte/register` hook, CJS runtime version and CJS compiler output ([#8613](https://github.com/sveltejs/svelte/pull/8613))
@ -29,8 +27,7 @@
- breaking: Stricter types for `onMount` - now throws a type error when returning a function asynchronously to catch potential mistakes around callback functions
- breaking: Stricter types for `onMount` - now throws a type error when returning a function asynchronously to catch potential mistakes around callback functions
(see PR for migration instructions) ([#8136](https://github.com/sveltejs/svelte/pull/8136))
(see PR for migration instructions) ([#8136](https://github.com/sveltejs/svelte/pull/8136))
- breaking: Overhaul and drastically improve creating custom elements with Svelte (see PR for list of changes and migration instructions) ([#8457](https://github.
- breaking: Overhaul and drastically improve creating custom elements with Svelte (see PR for list of changes and migration instructions) ([#8457](https://github.com/sveltejs/svelte/pull/8457))
com/sveltejs/svelte/pull/8457))
- breaking: Deprecate `SvelteComponentTyped` in favor of `SvelteComponent` ([#8512](https://github.com/sveltejs/svelte/pull/8512))
- breaking: Deprecate `SvelteComponentTyped` in favor of `SvelteComponent` ([#8512](https://github.com/sveltejs/svelte/pull/8512))
- breaking: Error on falsy values instead of stores passed to `derived` ([#7947](https://github.com/sveltejs/svelte/pull/7947))
- breaking: Error on falsy values instead of stores passed to `derived` ([#7947](https://github.com/sveltejs/svelte/pull/7947))
- breaking: Custom store implementers now need to pass an `update` function additionally to the `set` function ([#6750](https://github.com/sveltejs/svelte/pull/
- breaking: Custom store implementers now need to pass an `update` function additionally to the `set` function ([#6750](https://github.com/sveltejs/svelte/pull/6750))
6750))
- breaking: Do not expose default slot bindings to named slots and vice versa ([#6049](https://github.com/sveltejs/svelte/pull/6049))
- breaking: Do not expose default slot bindings to named slots and vice versa ([#6049](https://github.com/sveltejs/svelte/pull/6049))
- breaking: Change order in which preprocessors are applied ([#8618](https://github.com/sveltejs/svelte/pull/8618))
- breaking: Change order in which preprocessors are applied ([#8618](https://github.com/sveltejs/svelte/pull/8618))
- breaking: The runtime now makes use of `classList.toggle(name, boolean)` which does not work in very old browsers ([#8629](https://github.com/sveltejs/svelte/
- breaking: The runtime now makes use of `classList.toggle(name, boolean)` which does not work in very old browsers ([#8629](https://github.com/sveltejs/svelte/pull/8629))
pull/8629))
- breaking: apply `inert` to outroing elements ([#8627](https://github.com/sveltejs/svelte/pull/8627))
- breaking: apply `inert` to outroing elements ([#8627](https://github.com/sveltejs/svelte/pull/8627))