diff --git a/.changeset/fluffy-dolls-share.md b/.changeset/fluffy-dolls-share.md
new file mode 100644
index 0000000000..3eae889004
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+++ b/.changeset/fluffy-dolls-share.md
@@ -0,0 +1,5 @@
+---
+'svelte': patch
+---
+
+feat: implement nested CSS support