TypeScript SDK

What's Changed

Fixed

• Workflow Bundler: further strengthening of the webpack_module_cache replacement logic, addressing regressions introduced by the fix in 1.20.1.
• @temporalio/langsmith: install Workflow-bundle rewrites via compiler.webpack so they work under…

Fixed workflow interceptor module resolution for langsmith to use absolute paths instead of relative paths.

Backport of a fix addressing workflow state corruption that could occur when workflow updates fail. This resolves issue #2170.

Backport https://github.com/temporalio/sdk-typescript/pull/2169 to address https://github.com/temporalio/sdk-typescript/issues/2170

Backported a fix for activity heartbeat handling (PR #2169) to address issue #2170.

Backported a fix for workflow search attributes handling.

Backported a fix from PR #2169 to address issue #2170.

Backported a fix from PR #2169 addressing issue #2170.

New @temporalio/langsmith package hooks the client, Workflow, and Activity interceptors so Workflows and their Activities show up as a single LangSmith run tree. Core updated to improve gRPC decompression retry logic, honor SDK flags in Workflow replay, and fix OTLP metric export logging; @temporalio/openai-agents now derives trace span IDs from the SDK's replay-safe random source.

Node version requirement bumped to 20.3.0, and gRPC gzip compression is now enabled by default (disable via grpcCompression: { codec: none } if using a proxy without gzip support). Nexus operation link propagation now works for signals, making caller and callee mutually navigable in the UI, and WorkflowHandle.runId is now optional to support creating handles using only a workflow ID.

Bug Fixes

• [workflow-streams] Fix continue-as-new handling in workflow-streams subscribe (#2102)
• [activity] Correctly populate activity info task queue and namespace…

Corrective Release

Notable Changes

• [client, nexus] Standalone Nexus Operations support (#2027, #2085). Adds client.nexus, typed Nexus service clients, operation handles…

What's Changed

• [backport 1.16.2] Update core to pickup shutdown fix by @yuandrew in https://github.com/temporalio/sdk-typescript/pull/2057

Full Changelog: https://github.com/temporalio/sdk-typescript/compare/v1.16.1...v1.16.2

DNS Resolver Load Balancing Configuration

A new load balancing feature was added in https://github.com/temporalio/sdk-rust/pull/1212 which has caused networking issues in certain networking setups. This is now disabled by default via the change listed below…

Features

• Added new USE_RAMPING_VERSION versioning behavior to Continue-As-New (https://github.com/temporalio/sdk-typescript/pull/2034)

Bug Fixes

• [envconfig] fix(envconfig) - emit default configuration when no default file path found…

Notable Changes

• [lamba-worker, pre-release] New @temporalio/lambda-worker package (https://github.com/temporalio/sdk-typescript/pull/1995) that wraps the full per-invocation lifecycle for running Temporal workers inside AWS Lambda (connect, create worker, poll, graceful…

Bug Fixes

• [workflow] Fix NDE when multiple patches in a single WFT exceed SA's 2048-byte limit (Core SDK #1225)

Full Changelog: https://github.com/temporalio/sdk-typescript/compare/v1.16.0...v1.16.1

Notable Changes

• 💥 The Nexus API has several breaking changes in this release; see items marked 💥 in the sections below. Of particular note: NexusClient has been renamed to NexusServiceClient…

Notable Changes

• ⚠️ 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…