diff --git a/.changeset/major-papayas-run.md b/.changeset/major-papayas-run.md
new file mode 100644
index 0000000000..59909fb448
--- /dev/null
+++ b/.changeset/major-papayas-run.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: flush anything pending before invoking flushSync callback function
diff --git a/.changeset/short-radios-sneeze.md b/.changeset/short-radios-sneeze.md
new file mode 100644
index 0000000000..847c3eef17
--- /dev/null
+++ b/.changeset/short-radios-sneeze.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: read batch-local array on each-block commit
diff --git a/packages/svelte/src/internal/client/reactivity/batch.js b/packages/svelte/src/internal/client/reactivity/batch.js
index 4534498a2c..c9b7777da6 100644
--- a/packages/svelte/src/internal/client/reactivity/batch.js
+++ b/packages/svelte/src/internal/client/reactivity/batch.js
@@ -1243,7 +1243,7 @@ export function flushSync(fn) {
 		var result;
 
 		if (fn) {
-			flushSync(); // drain queue via the lower while(true) part
+			flushSync(); // flush anything pending through the while loop below
 
 			result = fn();
 		}