v1.15.0

Notable Changes

• :warning: Fixed potential request storms when worker is configured with poller autoscaling, due to missing exponential backoff on ResourceExhausted and other gRPC errors. See PRs https://github.com/temporalio/sdk-core/pull/1110 and https://github.com/temporalio/sdk-core/pull/1111 for more details.
• :boom: Node.js 18 is no longer supported (#1930)
• :test_tube: Added experimental support for Bun runtime (#1906)

Features

• [opentelemetry] Expose functionality as plugin (#1884)
• [worker] Worker Connection Replacement (#1902)
• [workflow] Nexus Cancellation Types (#1894)
• [worker] Worker deployment versioning is now GA (#1924)
• [envconfig] Environment configuration is now GA (#1924)
• [testing] Add API to setup Nexus endpoint on ephemeral test server (#1897)
• [nexus] Expose Temporal Nexus operation info to Temporal Nexus operation (#1896)
• [bun] 🧪 Bun support - experimental (#1906)
• [runtime] 🧪 Buffered metrics - experimental (#1922)

Bug Fixes

• [worker] Add exponential backoff on ResourceExhausted and other gRPC errors in Poller autoscaler (#1938 and #1944)
• [native] Correct native binding type for workerValidate (#1939)
• [client] Expose operatorService on ConnectionLike interface (#1904)
• [opentelemetry] Serialize TraceState before exporting to sink (#1891)
• [opentelemetry] makeWorkflowExporter accepts SpanProcessor (#1886)
• [ai] Add await to tool execution (#1882)
• [ai] Description was missing from the derived mcp tools (#1905)
• [ai] Fix a bug in AI SDK MCP Schema conversion (#1890)
• [common] Make search attribute type more lenient when parsing (#1943)
• [workflow] Allow logging queries validators during replay (#1927)
• [ai] Add missing dependency to ai package (#1878)
• [worker] Fix wf_task_replay_latency metric recording for non-replay tasks (#1083)
• [worker] Always send shutdown_worker RPC, fix WorkerStatus state when shutting down worker (#1082)
• [worker] Fix bug where we count first WFT as sticky cache hit (#1091)

Dependencies

• :boom: Drop node 18 support (#1930)
• [api] Update Temporal Protobuf APIs to v1.61.0 (#1100)
• [deps] Bump vulnerable dependencies (hono, jws, tar, ...) (#1900)
• [deps] Run cargo update (#1937)
• [deps] Bump webpack from 5.94.0 to 5.104.1 (#1929)
• Upgrade eslint (#1933)
• [deps] Bump bytes from 1.10.1 to 1.11.1 in /packages/core-bridge (#1921)
• [deps] Bump @modelcontextprotocol/sdk from 1.25.2 to 1.26.0 (#1928)
• [deps] Bump tar from 7.5.3 to 7.5.7 (#1916)

Breaking changes are marked with :boom: Experimental features are marked with :test_tube:

Full Changelog: https://github.com/temporalio/sdk-typescript/compare/v1.14.1...v1.15.0