diff --git a/.changeset/giant-buttons-guess.md b/.changeset/giant-buttons-guess.md
new file mode 100644
index 0000000000..7a7842259e
--- /dev/null
+++ b/.changeset/giant-buttons-guess.md
@@ -0,0 +1,14 @@
+---
+'@backstage/plugin-app-visualizer': patch
+'@backstage/plugin-catalog-graph': patch
+'@backstage/plugin-catalog-import': patch
+'@backstage/plugin-catalog': patch
+'@backstage/plugin-devtools': patch
+'@backstage/plugin-org': patch
+'@backstage/plugin-scaffolder': patch
+'@backstage/plugin-search': patch
+'@backstage/plugin-techdocs': patch
+'@backstage/plugin-user-settings': patch
+---
+
+Deprecate the old pattern of `create*Extension`, and replace it with the equivalent Blueprint implementation instead