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


##
[0.3.23](v0.3.22...v0.3.23)
(2026-02-13)


### Features

* add async context manager support to BaseClient
([#688](#688))
([ae9dc88](ae9dc88))
* add async context manager support to ClientTransport
([#682](#682))
([2e45c0d](2e45c0d))
* support async card modifiers
([#654](#654))
([a802500](a802500))
* support disabling OTel instrumentation via env var
([#611](#611))
([72216b9](72216b9))


### Bug Fixes

* do not crash on SSE comment line
([#636](#636))
([3dcb847](3dcb847))
* gRPC metadata header casing and invocation_metadata() call
([#676](#676))
([390b763](390b763))
* Improve error handling for Timeout exceptions on REST and JSON-RPC
clients ([#690](#690))
([2acd838](2acd838))
* map rejected task state in proto converters
([#668](#668))
([957e92b](957e92b)),
closes [#625](#625)
* **server:** fix deadlocks on agent execution failure in non-streaming
([#614](#614))
([d3c973f](d3c973f))


### Documentation

* explicitly mention supported spec version and transports in readme
([#681](#681))
([c91d4fb](c91d4fb)),
closes [#677](#677)
* Update README to include Code Wiki badge
([2698cc0](2698cc0))

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

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


### ⚠ BREAKING CHANGES

* **spec**: upgrade SDK to A2A 1.0 spec and use proto-based types
([#572](#572),
[#665](#665),
[#804](#804),
[#765](#765))
* **client:** introduce ServiceParameters for extensions and include it
in ClientCallContext
([#784](#784))
* **client:** rename "callback" -> "push_notification_config"
([#749](#749))
* **client:** transport agnostic interceptors
([#796](#796))
([a910cbc](a910cbc))
* add `protocol_version` column to Task and PushNotificationConfig
models and create a migration
([#789](#789))
([2e2d431](2e2d431))
* **server:** implement `Resource Scoping` for tasks and push
notifications
([#709](#709))
([f0d4669](f0d4669))

### Features

* add GetExtendedAgentCardRequest as input parameter to
GetExtendedAgentCard method
([#767](#767))
([13a092f](13a092f))
* add validation for the JSON-RPC version
([#808](#808))
([6eb7e41](6eb7e41))
* **client:** expose close() and async context manager support on
abstract Client
([#719](#719))
([e25ba7b](e25ba7b))
* **compat:** AgentCard backward compatibility helpers and tests
([#760](#760))
([81f3494](81f3494))
* **compat:** GRPC client compatible with 0.3 server
([#779](#779))
([0ebca93](0ebca93))
* **compat:** GRPC server compatible with 0.3 client
([#772](#772))
([80d827a](80d827a))
* **compat:** legacy v0.3 protocol models, conversion logic and
utilities ([#754](#754))
([26835ad](26835ad))
* **compat:** REST and JSONRPC clients compatible with 0.3 servers
([#798](#798))
([08794f7](08794f7))
* **compat:** REST and JSONRPC servers compatible with 0.3 clients
([#795](#795))
([9856054](9856054))
* **compat:** set a2a-version header to 1.0.0
([#764](#764))
([4cb68aa](4cb68aa))
* **compat:** unify v0.3 REST url prefix and expand cross-version tests
([#820](#820))
([0925f0a](0925f0a))
* database forward compatibility: make `owner` field optional
([#812](#812))
([cc29d1f](cc29d1f))
* handle tenant in Client
([#758](#758))
([5b354e4](5b354e4))
* implement missing push notifications related methods
([#711](#711))
([041f0f5](041f0f5))
* implement rich gRPC error details per A2A v1.0 spec
([#790](#790))
([245eca3](245eca3))
* **rest:** add tenant support to rest
([#773](#773))
([4771b5a](4771b5a))
* send task as a first subscribe event
([#716](#716))
([e71ac62](e71ac62))
* **server, grpc:** Implement tenant context propagation for gRPC
requests. ([#781](#781))
([164f919](164f919))
* **server, json-rpc:** Implement tenant context propagation for
JSON-RPC requests.
([#778](#778))
([72a330d](72a330d))
* **server:** add v0.3 legacy compatibility for database models
([#783](#783))
([08c491e](08c491e))
* **spec:** add `tasks/list` method with filtering and pagination to the
specification
([#511](#511))
([d5818e5](d5818e5))
* use StreamResponse as push notifications payload
([#724](#724))
([a149a09](a149a09))
* **rest:** update REST error handling to use `google.rpc.Status`
([#838](#838))
([ea7d3ad](ea7d3ad))


### Bug Fixes

* add history length and page size validations
([#726](#726))
([e67934b](e67934b))
* allign error codes with the latest spec
([#826](#826))
([709b1ff](709b1ff))
* **client:** align send_message signature with BaseClient
([#740](#740))
([57cb529](57cb529))
* get_agent_card trailing slash when agent_card_path=""
([#799](#799))
([#800](#800))
([a55c97e](a55c97e))
* handle parsing error in REST
([#806](#806))
([bbd09f2](bbd09f2))
* Improve error handling for Timeout exceptions on REST and JSON-RPC
clients ([#690](#690))
([2acd838](2acd838))
* Improve streaming errors handling
([#576](#576))
([7ea7475](7ea7475))
* properly handle unset and zero history length
([#717](#717))
([72a1007](72a1007))
* return entire history when history_length=0
([#537](#537))
([acdc0de](acdc0de))
* return mandatory fields from list_tasks
([#710](#710))
([6132053](6132053))
* taskslist error on invalid page token and response serialization
([#814](#814))
([a102d31](a102d31))
* use correct REST path for Get Extended Agent Card operation
([#769](#769))
([ced3f99](ced3f99))
* Use POST method for REST endpoint /tasks/{id}:subscribe
([#843](#843))
([a0827d0](a0827d0))

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

---------

Co-authored-by: Ivan Shymko <ishymko@google.com>