diff --git a/.changeset/plenty-items-build.md b/.changeset/plenty-items-build.md
new file mode 100644
index 0000000000..26c8a7c201
--- /dev/null
+++ b/.changeset/plenty-items-build.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+breaking: warn on quotes single-expression attributes in runes mode