diff --git a/.changeset/popular-dancers-switch.md b/.changeset/popular-dancers-switch.md
new file mode 100644
index 0000000000..8d39dce64d
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+++ b/.changeset/popular-dancers-switch.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+fix: legacy mode: use coarse reactivity in the block's expressions