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JakubWorek merged 3 commits into from
Jul 22, 2026
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chore(main): release 1.0.0 #590

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8a5c61d
chore(main): release 1.0.0
a2a-bot Jul 22, 2026
a0e45c6
update changelog
JakubWorek Jul 22, 2026
be61141
add desc to changelog
JakubWorek Jul 22, 2026
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2 changes: 1 addition & 1 deletion .release-please-manifest.json
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{
".": "1.0.0-beta.0"
".": "1.0.0"
}
34 changes: 34 additions & 0 deletions CHANGELOG.md
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# Changelog

## [1.0.0](https://github.com/a2aproject/a2a-js/compare/v1.0.0-beta.0...v1.0.0) (2026-07-22)

`@a2a-js/sdk` is now generally available. This release promotes the v1.0 line to stable, implementing the full [A2A Protocol Specification v1.0](https://a2a-protocol.org/v1.0.0/specification/) across all three transports (JSON-RPC, HTTP+JSON/REST, gRPC), with opt-in v0.3 backward compatibility for staged migrations.

Upgrading from `0.3.x`? See the [v0.3 → v1.0 migration guide](https://github.com/a2aproject/a2a-js/blob/v1.0.0/docs/migration-guide.md).
Interoperating with peers still on v0.3? See the [end-user v0.3 compatibility guide](https://github.com/a2aproject/a2a-js/blob/v1.0.0/docs/compatibility-v0_3.md).

Changes below cover what landed since `v1.0.0-beta.0` — for the complete v0.3 → v1.0 delta, see the [`1.0.0-beta.0`](#100-beta0-2026-07-01) and [`1.0.0-alpha.0`](#100-alpha0-2026-05-11) entries below.


### ⚠ BREAKING CHANGES

* unify A2AError hierarchy with transport specific subclasses ([#587](https://github.com/a2aproject/a2a-js/issues/587))
* **server:** replace individual properties with SendMessageRequest in RequestContext ([#581](https://github.com/a2aproject/a2a-js/issues/581))

### Features

* add state bag and ServerCallContextBuilder to ServerCallContext ([#364](https://github.com/a2aproject/a2a-js/issues/364)) ([477e394](https://github.com/a2aproject/a2a-js/commit/477e394981a92a118f3a738a0401fc45193612da))
* export SSE wire-format helpers from public entry point ([#548](https://github.com/a2aproject/a2a-js/issues/548)) ([8bc21f5](https://github.com/a2aproject/a2a-js/commit/8bc21f5697f4b3ea31a1788747db418e6619809f)), closes [#547](https://github.com/a2aproject/a2a-js/issues/547)
* **server:** expose SendMessageRequest metadata to AgentExecutor via RequestContext ([#564](https://github.com/a2aproject/a2a-js/issues/564)) ([a92f54e](https://github.com/a2aproject/a2a-js/commit/a92f54ec6ea5aa0c3d13891fd4ad110e97b07e93))
* **server:** replace individual properties with SendMessageRequest in RequestContext ([#581](https://github.com/a2aproject/a2a-js/issues/581)) ([7cd30de](https://github.com/a2aproject/a2a-js/commit/7cd30dea0082e2d1491f1ec4e037e06b2e408462))
* unify A2AError hierarchy with transport specific subclasses ([#587](https://github.com/a2aproject/a2a-js/issues/587)) ([4806f8f](https://github.com/a2aproject/a2a-js/commit/4806f8f757c7b945d1d588804cbfe06fc2d30a10))


### Bug Fixes

* **client:** bound SSE event size to prevent client-side memory exhaustion ([#582](https://github.com/a2aproject/a2a-js/issues/582)) ([e6e8ce9](https://github.com/a2aproject/a2a-js/commit/e6e8ce9af036f10ca020286fe4bfa649994e7b84))
* **client:** cancel the SSE stream on teardown to avoid leaking connections ([#580](https://github.com/a2aproject/a2a-js/issues/580)) ([83269a5](https://github.com/a2aproject/a2a-js/commit/83269a5a30f7a4860df80fe12f80d8f2d532e8cf))
* **grpc:** preserve null values in protobuf Struct ([#578](https://github.com/a2aproject/a2a-js/issues/578)) ([f447e4e](https://github.com/a2aproject/a2a-js/commit/f447e4e72332fd9f5aa32ba3fccd1464d2de4627)), closes [#576](https://github.com/a2aproject/a2a-js/issues/576)
* resolve sdk compatibility bugs ([#568](https://github.com/a2aproject/a2a-js/issues/568)) ([b57f026](https://github.com/a2aproject/a2a-js/commit/b57f026f82b022eee16bd09907a9ecac0162784f))
* **server:** await _handleProcessingError so blocking drains surface errors ([#579](https://github.com/a2aproject/a2a-js/issues/579)) ([5833652](https://github.com/a2aproject/a2a-js/commit/5833652fbe4eab1a3d10437b2d6db7b0fe22233f))
* support GET for resubscribe route ([#569](https://github.com/a2aproject/a2a-js/issues/569)) ([8dd43d1](https://github.com/a2aproject/a2a-js/commit/8dd43d1484bb7bf4dfc786eca1c4ce2d40441d73))


## [1.0.0-beta.0](https://github.com/a2aproject/a2a-js/compare/v1.0.0-alpha.0...v1.0.0-beta.0) (2026-07-01)

The v0.3 backward-compatibility layer is now complete, marking this release as the first one bringing v1.0 and v0.3 support together.
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4 changes: 2 additions & 2 deletions package-lock.json
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2 changes: 1 addition & 1 deletion package.json
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{
"name": "@a2a-js/sdk",
"version": "1.0.0-beta.0",
"version": "1.0.0",
"description": "Server & Client SDK for Agent2Agent protocol",
"license": "Apache-2.0",
"repository": {
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