diff --git a/.changeset/modern-brooms-grow.md b/.changeset/modern-brooms-grow.md
new file mode 100644
index 0000000000..0aff21dcca
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@@ -0,0 +1,10 @@
+---
+'@backstage/core-compat-api': patch
+'@backstage/frontend-app-api': patch
+'@backstage/frontend-test-utils': patch
+'@backstage/plugin-api-docs': patch
+'@backstage/plugin-home': patch
+'@backstage/plugin-kubernetes': patch
+---
+
+Migrating usages of the deprecated `createExtension` `v1` format to the newer `v2` format, and old `create*Extension` extension creators to blueprints.