chore(main): release 0.4.0

Author: a2a-bot

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.0](https://github.com/a2aproject/a2a-python/compare/v0.3.13...v0.4.0) (2025-11-17)
+
+
+### Features
+
+* **jsonrpc:** add option to disable oversized payload check in JSONRPC applications ([#544](https://github.com/a2aproject/a2a-python/issues/544)) ([ba142df](https://github.com/a2aproject/a2a-python/commit/ba142df821d1c06be0b96e576fd43015120fcb0b))
+
 ## [0.3.13](https://github.com/a2aproject/a2a-python/compare/v0.3.12...v0.3.13) (2025-11-13)