chore(main): release 0.2.9

Author: release-please[bot]

CHANGELOG.md

@@ -1,5 +1,26 @@
 # Changelog
 
+## [0.2.9](https://github.com/google-a2a/a2a-python/compare/v0.2.8...v0.2.9) (2025-06-18)
+
+
+### ⚠ BREAKING CHANGES
+
+* Update A2A types from specification 🤖 ([#197](https://github.com/google-a2a/a2a-python/issues/197))
+
+### Features
+
+* Add `append` and `last_chunk` to `add_artifact` method on `TaskUpdater` ([#186](https://github.com/google-a2a/a2a-python/issues/186)) ([8c6560f](https://github.com/google-a2a/a2a-python/commit/8c6560fd403887fab9d774bfcc923a5f6f459364))
+* add a2a routes to existing app ([#188](https://github.com/google-a2a/a2a-python/issues/188)) ([32fecc7](https://github.com/google-a2a/a2a-python/commit/32fecc7194a61c2f5be0b8795d5dc17cdbab9040))
+* Update A2A types from specification 🤖 ([#197](https://github.com/google-a2a/a2a-python/issues/197)) ([1fbf600](https://github.com/google-a2a/a2a-python/commit/1fbf600215ce85dbcfe36ef8112c24b89c285d37))
+* Update A2A types from specification 🤖 ([#206](https://github.com/google-a2a/a2a-python/issues/206)) ([3800c83](https://github.com/google-a2a/a2a-python/commit/3800c83471cd4bc996e4d9072bb717740ecb0831))
+
+
+### Bug Fixes
+
+* library release version ([a9567ea](https://github.com/google-a2a/a2a-python/commit/a9567ea4688858d907eab3d2f9915a9ceb5122c6))
+* Lower fastapi required version to `fastapi>=0.115.2` ([#193](https://github.com/google-a2a/a2a-python/issues/193)) ([8e713b7](https://github.com/google-a2a/a2a-python/commit/8e713b70c0cdddc115f04bc93155943a51069af8))
+* update regex references for pushNotificationConfigs ([#211](https://github.com/google-a2a/a2a-python/issues/211)) ([325ad8c](https://github.com/google-a2a/a2a-python/commit/325ad8cf949ffa91acd7a7f98e83f66bb77857e0))
+
 ## [0.2.8](https://github.com/google-a2a/a2a-python/compare/v0.2.7...v0.2.8) (2025-06-12)