chore(main): release 0.3.0 (a2aproject#83)

🤖 I have created a release *beep* *boop*
---


## 0.3.0 (2025-11-04)


### Features

* add JSON-RPC client transport implementation
([a2aproject#79](a2aproject#79))
([1690088](a2aproject@1690088))
* agent card resolver
([a2aproject#48](a2aproject#48))
([0951293](a2aproject@0951293))
* blocking flag handling
([a2aproject#97](a2aproject#97))
([f7aa465](a2aproject@f7aa465)),
closes [a2aproject#96](a2aproject#96)
* client API proposal
([a2aproject#32](a2aproject#32))
([b6ca54f](a2aproject@b6ca54f))
* client auth interceptor
([a2aproject#90](a2aproject#90))
([25b9aae](a2aproject@25b9aae))
* client interceptor invocations
([a2aproject#51](a2aproject#51))
([3e9f2ae](a2aproject@3e9f2ae))
* core types JSON codec
([a2aproject#42](a2aproject#42))
([c5b3982](a2aproject@c5b3982))
* define core types and interfaces
([#16](a2aproject#16))
([69b96ea](a2aproject@69b96ea))
* disallow custom types and circular refs in Metadata
([a2aproject#43](a2aproject#43))
([53bc928](a2aproject@53bc928))
* get task implementation
([a2aproject#59](a2aproject#59))
([f74d854](a2aproject@f74d854))
* grpc authenticated agent card and producer utils
([a2aproject#85](a2aproject#85))
([9d82f31](a2aproject@9d82f31)),
closes [a2aproject#82](a2aproject#82)
* grpc client transport
([a2aproject#66](a2aproject#66))
([fee703e](a2aproject@fee703e))
* grpc code generation from A2A .proto spec
([#11](a2aproject#11))
([2993b98](a2aproject@2993b98))
* handling artifacts and implementing send message stream
([a2aproject#52](a2aproject#52))
([c3fa631](a2aproject@c3fa631))
* implement an a2aclient.Factory
([a2aproject#50](a2aproject#50))
([49deee7](a2aproject@49deee7))
* implementing grpc server wrapper
([a2aproject#37](a2aproject#37))
([071e952](a2aproject@071e952))
* implementing message-message interaction
([a2aproject#34](a2aproject#34))
([b568979](a2aproject@b568979))
* implementing task pushes
([a2aproject#86](a2aproject#86))
([c210240](a2aproject@c210240))
* input-required and auth-required handling
([a2aproject#70](a2aproject#70))
([3ac89ba](a2aproject@3ac89ba))
* jsonrpc server ([a2aproject#91](a2aproject#91))
([5491030](a2aproject@5491030))
* logger ([a2aproject#56](a2aproject#56))
([86ab9d2](a2aproject@86ab9d2))
* request context loading
([a2aproject#60](a2aproject#60))
([ab7a29b](a2aproject@ab7a29b))
* result aggregation part 1 - task store
([a2aproject#38](a2aproject#38))
([d3c02f5](a2aproject@d3c02f5))
* result aggregation part 3 - concurrent task executor
([a2aproject#40](a2aproject#40))
([265c3e7](a2aproject@265c3e7))
* result aggregation part 4 - integration
([a2aproject#41](a2aproject#41))
([bab72d9](a2aproject@bab72d9))
* SDK type utilities
([a2aproject#31](a2aproject#31))
([32b77b4](a2aproject@32b77b4))
* server middleware API
([a2aproject#63](a2aproject#63))
([738bf85](a2aproject@738bf85))
* server middleware integration
([a2aproject#64](a2aproject#64))
([5dc8be0](a2aproject@5dc8be0))
* smarter a2aclient
([a2aproject#88](a2aproject#88))
([322d05b](a2aproject@322d05b))
* task event factory
([a2aproject#95](a2aproject#95))
([fbf3bcf](a2aproject@fbf3bcf)),
closes [a2aproject#84](a2aproject#84)
* task executor docs
([a2aproject#36](a2aproject#36))
([b6868df](a2aproject@b6868df))
* task update logic
([0ac987f](a2aproject@0ac987f))


### Bug Fixes

* Execute() callers missing events
([a2aproject#74](a2aproject#74))
([4c3389f](a2aproject@4c3389f))
* mark task failed when execution fails
([a2aproject#94](a2aproject#94))
([ee0e7ed](a2aproject@ee0e7ed))
* push semantics update
([a2aproject#93](a2aproject#93))
([76bff9f](a2aproject@76bff9f))
* race detector queue closed access
([c07b7d0](a2aproject@c07b7d0))
* regenerate proto and update converters
([a2aproject#81](a2aproject#81))
([c732060](a2aproject@c732060))
* streaming ([a2aproject#92](a2aproject#92))
([ca7a64b](a2aproject@ca7a64b))


### Miscellaneous Chores

* release 0.3.0
([fa7cfba](a2aproject@fa7cfba))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Author: a2a-bot

CHANGELOG.md

@@ -0,0 +1,54 @@
+# Changelog
+
+## 0.3.0 (2025-11-04)
+
+
+### Features
+
+* add JSON-RPC client transport implementation ([#79](https://github.com/a2aproject/a2a-go/issues/79)) ([1690088](https://github.com/a2aproject/a2a-go/commit/16900888cf3e84822b84611a8b85aefab7d1044f))
+* agent card resolver ([#48](https://github.com/a2aproject/a2a-go/issues/48)) ([0951293](https://github.com/a2aproject/a2a-go/commit/0951293e320a35202d2ca51a1761adb6e769419a))
+* blocking flag handling ([#97](https://github.com/a2aproject/a2a-go/issues/97)) ([f7aa465](https://github.com/a2aproject/a2a-go/commit/f7aa4653452b4f845facf237802ee9ab0e52846f)), closes [#96](https://github.com/a2aproject/a2a-go/issues/96)
+* client API proposal ([#32](https://github.com/a2aproject/a2a-go/issues/32)) ([b6ca54f](https://github.com/a2aproject/a2a-go/commit/b6ca54fa76f3a6d9c90e89d0dd7569442a1e9149))
+* client auth interceptor ([#90](https://github.com/a2aproject/a2a-go/issues/90)) ([25b9aae](https://github.com/a2aproject/a2a-go/commit/25b9aae1cdb6dece5c2b6cdb32716e4d2ebbd021))
+* client interceptor invocations ([#51](https://github.com/a2aproject/a2a-go/issues/51)) ([3e9f2ae](https://github.com/a2aproject/a2a-go/commit/3e9f2aef25c67a0cef56823b5f282a11cea59bb6))
+* core types JSON codec ([#42](https://github.com/a2aproject/a2a-go/issues/42)) ([c5b3982](https://github.com/a2aproject/a2a-go/commit/c5b3982a41aa01c428ad0e3b56aadc99157b23ee))
+* define core types and interfaces ([#16](https://github.com/a2aproject/a2a-go/issues/16)) ([69b96ea](https://github.com/a2aproject/a2a-go/commit/69b96ea0715cbdefe6d22f08e3fb0a11755f9476))
+* disallow custom types and circular refs in Metadata ([#43](https://github.com/a2aproject/a2a-go/issues/43)) ([53bc928](https://github.com/a2aproject/a2a-go/commit/53bc9283dddd591a3563e6b1ea070b1972967bfa))
+* get task implementation ([#59](https://github.com/a2aproject/a2a-go/issues/59)) ([f74d854](https://github.com/a2aproject/a2a-go/commit/f74d85423c678a907ae3a0f95cdb94ae3f2ebe1e))
+* grpc authenticated agent card and producer utils ([#85](https://github.com/a2aproject/a2a-go/issues/85)) ([9d82f31](https://github.com/a2aproject/a2a-go/commit/9d82f31874995065d2dac2afbb5c408ab9a42fc8)), closes [#82](https://github.com/a2aproject/a2a-go/issues/82)
+* grpc client transport ([#66](https://github.com/a2aproject/a2a-go/issues/66)) ([fee703e](https://github.com/a2aproject/a2a-go/commit/fee703e5d87e1c48fffe8138d8b57c1f37556bb8))
+* grpc code generation from A2A .proto spec ([#11](https://github.com/a2aproject/a2a-go/issues/11)) ([2993b98](https://github.com/a2aproject/a2a-go/commit/2993b9830c072cfc6bc1feac81ad6695fc919a3a))
+* handling artifacts and implementing send message stream ([#52](https://github.com/a2aproject/a2a-go/issues/52)) ([c3fa631](https://github.com/a2aproject/a2a-go/commit/c3fa6310a7b67d7f0771e688bbbd00730950ddb6))
+* implement an a2aclient.Factory ([#50](https://github.com/a2aproject/a2a-go/issues/50)) ([49deee7](https://github.com/a2aproject/a2a-go/commit/49deee794474104bb7ebaf281895e6dd47d03f0c))
+* implementing grpc server wrapper ([#37](https://github.com/a2aproject/a2a-go/issues/37)) ([071e952](https://github.com/a2aproject/a2a-go/commit/071e9522534e7aeaf0375451a73dc0b175e516b4))
+* implementing message-message interaction ([#34](https://github.com/a2aproject/a2a-go/issues/34)) ([b568979](https://github.com/a2aproject/a2a-go/commit/b5689797dc63c25c2e8165830dc5f556ce784ad3))
+* implementing task pushes ([#86](https://github.com/a2aproject/a2a-go/issues/86)) ([c210240](https://github.com/a2aproject/a2a-go/commit/c210240cc39787c6a66b508d4a5cb976612d5c5a))
+* input-required and auth-required handling ([#70](https://github.com/a2aproject/a2a-go/issues/70)) ([3ac89ba](https://github.com/a2aproject/a2a-go/commit/3ac89ba98318964a960be7ae6b2be07909e7ac75))
+* jsonrpc server ([#91](https://github.com/a2aproject/a2a-go/issues/91)) ([5491030](https://github.com/a2aproject/a2a-go/commit/549103074cdcf8f3a12cdd1f0bcbbc3a599dd0f1))
+* logger ([#56](https://github.com/a2aproject/a2a-go/issues/56)) ([86ab9d2](https://github.com/a2aproject/a2a-go/commit/86ab9d2e8e41b27fd605c4025f04ffe1fcdcd368))
+* request context loading ([#60](https://github.com/a2aproject/a2a-go/issues/60)) ([ab7a29b](https://github.com/a2aproject/a2a-go/commit/ab7a29b1ff309361fcb240f9fb0d4eb00c022c53))
+* result aggregation part 1 - task store ([#38](https://github.com/a2aproject/a2a-go/issues/38)) ([d3c02f5](https://github.com/a2aproject/a2a-go/commit/d3c02f578ce72ce0ba2bf15299afc07d88f75594))
+* result aggregation part 3 - concurrent task executor ([#40](https://github.com/a2aproject/a2a-go/issues/40)) ([265c3e7](https://github.com/a2aproject/a2a-go/commit/265c3e7f183aa79cbbd1d3cba02cdb24d43d80f5))
+* result aggregation part 4 - integration ([#41](https://github.com/a2aproject/a2a-go/issues/41)) ([bab72d9](https://github.com/a2aproject/a2a-go/commit/bab72d9c72aa13614b2fac74925eb158c1daf91f))
+* SDK type utilities ([#31](https://github.com/a2aproject/a2a-go/issues/31)) ([32b77b4](https://github.com/a2aproject/a2a-go/commit/32b77b492b838f0f6284ce63ed0558886c811781))
+* server middleware API ([#63](https://github.com/a2aproject/a2a-go/issues/63)) ([738bf85](https://github.com/a2aproject/a2a-go/commit/738bf85565ebe190e163c87fb79d695254a4438b))
+* server middleware integration ([#64](https://github.com/a2aproject/a2a-go/issues/64)) ([5dc8be0](https://github.com/a2aproject/a2a-go/commit/5dc8be03b20f96a684ce3703c14d6c6b5f9234ee))
+* smarter a2aclient ([#88](https://github.com/a2aproject/a2a-go/issues/88)) ([322d05b](https://github.com/a2aproject/a2a-go/commit/322d05bc4fb73b4316adf88bbf3c42fb1e73379a))
+* task event factory ([#95](https://github.com/a2aproject/a2a-go/issues/95)) ([fbf3bcf](https://github.com/a2aproject/a2a-go/commit/fbf3bcff0c4af7424733aeaf02a7b982c9b6e743)), closes [#84](https://github.com/a2aproject/a2a-go/issues/84)
+* task executor docs ([#36](https://github.com/a2aproject/a2a-go/issues/36)) ([b6868df](https://github.com/a2aproject/a2a-go/commit/b6868df38d11f097e7a8d71bfec2d91ec9e7399e))
+* task update logic ([0ac987f](https://github.com/a2aproject/a2a-go/commit/0ac987fcacd94d374ea9141ca917afa12814665f))
+
+
+### Bug Fixes
+
+* Execute() callers missing events ([#74](https://github.com/a2aproject/a2a-go/issues/74)) ([4c3389f](https://github.com/a2aproject/a2a-go/commit/4c3389f887cbcc0d402a5d20a7a7112d5890f64d))
+* mark task failed when execution fails ([#94](https://github.com/a2aproject/a2a-go/issues/94)) ([ee0e7ed](https://github.com/a2aproject/a2a-go/commit/ee0e7ed693792782f4c3e0b3dc2361f03007a91f))
+* push semantics update ([#93](https://github.com/a2aproject/a2a-go/issues/93)) ([76bff9f](https://github.com/a2aproject/a2a-go/commit/76bff9f8fadd4d2d9611c872d07d4efc626bafaf))
+* race detector queue closed access ([c07b7d0](https://github.com/a2aproject/a2a-go/commit/c07b7d0014056a6b499d0363a13a3efc7b03519b))
+* regenerate proto and update converters ([#81](https://github.com/a2aproject/a2a-go/issues/81)) ([c732060](https://github.com/a2aproject/a2a-go/commit/c732060cb007a661a059fe51b9a3907fb1790af5))
+* streaming ([#92](https://github.com/a2aproject/a2a-go/issues/92)) ([ca7a64b](https://github.com/a2aproject/a2a-go/commit/ca7a64bd7b6d056b40b56b6ba14b38ef2eea8f8a))
+
+
+### Miscellaneous Chores
+
+* release 0.3.0 ([fa7cfba](https://github.com/a2aproject/a2a-go/commit/fa7cfbad3bbcf9fefe91a7fb769ee34f074a700a))