diff --git a/.changeset/fuzzy-feet-exist.md b/.changeset/fuzzy-feet-exist.md
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+---
+'@backstage/frontend-plugin-api': patch
+'@backstage/plugin-app': patch
+---
+
+Deprecated the `namespace` option for `createExtensionBlueprint` and `createExtension`, these are no longer required and will default to the `pluginId` instead