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A2A Java SDK 1.5.0.Final Released
We're happy to announce A2A Java SDK 1.5.0.Final ! This release brings unified HTTP client configuration, a first phase of expanded OpenTelemetry support, and improvements to authorized task listings, alongside fixes across JSON-RPC, REST, and gRPC. NOTE This release contains breaking changes: custom HTTP client configurations may need adjustment, JPA task stores require a schema migration, and custom server integrations must adapt to changes in the validation SPI. Programmatically built handlers...
2026, Nov 03 — 10 minute(s) readA2A Java SDK 1.4.0.Final Released
I am happy to announce the release of A2A Java SDK 1.4.0.Final . This release consolidates the multi-tenancy API with an important breaking change, brings SSE configuration improvements, strengthens interoperability testing, and delivers a large set of bug fixes across all transports. NOTE This release contains a breaking change affecting the @Tenant qualifier. See the migration section for details. What's New Multi-Tenancy: @Tenant Qualifier Consolidation The @Tenant qualifier annotation has...
2026, Sep 28 — 5 minute(s) readA2A Java SDK 1.3.0.Final Released
I am happy to announce the release of A2A Java SDK 1.3.0.Final . This release introduces multi-tenancy support, switches the authorization model to fail-closed by default, delivers a wave of security hardening, and improves protocol compliance across all transports. NOTE This release contains breaking changes . See the migration section for details. What's New Multi-Tenancy Support The headline feature of 1.3.0 is multi-tenancy ( #1084 ), which lets a...
2026, Aug 27 — 7 minute(s) readA2A Java SDK 1.2.0.Final Released
I am happy to announce the release of A2A Java SDK 1.2.0.Final . This release hardens the authorization model, adds stream lifecycle management, and fixes several protocol compliance issues. NOTE This release contains breaking changes . See the migration section for details. What's New Authorization Hardening The 1.1.0 release introduced the TaskAuthorizationProvider SPI for per-user task authorization. This release closes gaps in that model and makes the authorization API easier...
2026, Aug 07 — 7 minute(s) readA2A Java SDK 1.1.0.Final Released
I am pleased to announce the release of A2A Java SDK 1.1.0.Final. This is the first feature release after our 1.0.0.Final GA, bringing per-user task authorization and several stability fixes. What's New Task Authorization SPI The headline feature of 1.1.0 is the new TaskAuthorizationProvider SPI, which enables per-user task authorization for multi-tenant deployments. This is a breaking change for implementations that rely on...
2026, Jun 29 — 4 minute(s) read