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+# ⚠️ Deprecation Notice
+
+**AutoRest and its ecosystem(including oad) is deprecated and was retired on July 1, 2026.**
+
+AutoRest is no longer under active development. No new features, language generators, or plugins will be added.
+
+### ✅ Recommended replacement: TypeSpec
+
+The recommended successor to AutoRest is **[TypeSpec](https://typespec.io/)** — a modern, actively developed API description language and code generation platform.
+
 # About openapi-diff
 
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