chore(main): release 0.3.27

Author: a2a-bot

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.3.27](https://github.com/a2aproject/a2a-python/compare/v0.3.26...v0.3.27) (2026-04-16)
+
+
+### Bug Fixes
+
+* Don't generate empty metadata change events in VertexTaskStore ([#962](https://github.com/a2aproject/a2a-python/issues/962)) ([b44fa8f](https://github.com/a2aproject/a2a-python/commit/b44fa8f9d2180d56d8c95eeff8a2e9260447db36)), closes [#751](https://github.com/a2aproject/a2a-python/issues/751)
+
 ## [0.3.26](https://github.com/a2aproject/a2a-python/compare/v0.3.25...v0.3.26) (2026-04-09)