SDK .NET Files

Notable Changes

Added

• Added experimental AWS Lambda worker support packages, including OpenTelemetry helpers for Lambda workers.
• Added experimental workflow-side Workflow.SignalWithStartWorkflowAsync support.

Changed

• Changed the default TemporalConnectionOptions.GrpcCompression to GrpcCompression.Gzip, so connections now compress outbound requests and accept gzip-compressed responses by default. If the remote service does not support gzip compression, the connection is downgraded to uncompressed requests. Set it to GrpcCompression.None to opt out.

Fixed

• Fixed ClientEnvConfig empty OverrideEnvVars handling so an explicit empty dictionary no longer falls back to process environment variables.
• Fixed ClientEnvConfig TLS-disabled profiles to preserve disabled TLS in connection options.
• OTLP metric export failures are now logged through Core telemetry when OpenTelemetry's periodic metric reader reports an export error.
• Worker heartbeat now samples host CPU/memory at the heartbeat interval (only when enabled) rather than every 100ms.

What's Changed

• chore: update baseline to 1.16.0 by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/762
• chore(ci): use mise for installing protoc by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/765
• Document client configuration from environment by @eamsden in https://github.com/temporalio/sdk-dotnet/pull/766
• Align bridge env config loading behavior by @eamsden in https://github.com/temporalio/sdk-dotnet/pull/767
• Update Microsoft.VisualStudio.Threading.Analyzers version by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/768
• chore: pin .NET SDK with latest patch by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/769
• AWS Lambda by @eamsden in https://github.com/temporalio/sdk-dotnet/pull/721
• chore: update sdk-core submodule by @tconley1428 in https://github.com/temporalio/sdk-dotnet/pull/774
• build(deps): bump actions/setup-dotnet from 5.3.0 to 5.4.0 by @dependabot[bot] in https://github.com/temporalio/sdk-dotnet/pull/771
• chore: freeze Amazon.Lambda.Core version in dependabot by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/775
• Add system Nexus signal-with-start workflow API by @tconley1428 in https://github.com/temporalio/sdk-dotnet/pull/744
• Preserve disabled TLS env config by @eamsden in https://github.com/temporalio/sdk-dotnet/pull/770
• chore: add experimental to AWS Lambda worker types by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/779
• refactor(lambda): align Lambda worker APIs with .NET naming conventions by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/780
• chore: update sdk-core submodule by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/776
• feat(client): default gRPC compression to gzip by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/781
• fix(nuget): specify audience when logging into nuget repository by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/777
• chore: update sdk version to 1.17.0 by @jmaeagle99 in https://github.com/temporalio/sdk-dotnet/pull/778

SDK Core Update

Updated from https://github.com/temporalio/sdk-rust/commit/95d3a76dee5a495a009c58541ded8a6228a1d6e8 to https://github.com/temporalio/sdk-rust/commit/95e97686a079dcfe6c42e3254b2f3f5e3d97408f

• chore(client): use json payload converter in https://github.com/temporalio/sdk-core/pull/1368
• Respect SDK flags in history & gzip downgrade in https://github.com/temporalio/sdk-core/pull/1370
• cleanup changelog in https://github.com/temporalio/sdk-core/pull/1374
• chore: limit wasm test concurrency in https://github.com/temporalio/sdk-core/pull/1375
• fix(otel): install subscriber on PeriodicReader thread in https://github.com/temporalio/sdk-core/pull/1378
• Update api upstream in https://github.com/temporalio/sdk-core/pull/1367
• feat(sdk): switch to rich search attributes from all getters in https://github.com/temporalio/sdk-core/pull/1373
• fix(client): correctly handle Node gRPC style unimplemented method message in https://github.com/temporalio/sdk-core/pull/1379
• chore(ci): use mise for installing protoc in https://github.com/temporalio/sdk-core/pull/1382
• feat(schedules): provide typed accessor to schedule action in https://github.com/temporalio/sdk-core/pull/1372
• Test Cloud gzip support for GetSystemInfo and HealthCheck in https://github.com/temporalio/sdk-core/pull/1362
• chore(sdk): reject #[workflow(name=...)] for overriding workflow name in https://github.com/temporalio/sdk-core/pull/1390
• fix: use worker hearbeat interval for heartbeat system info poller in https://github.com/temporalio/sdk-core/pull/1393

Full Changelog: https://github.com/temporalio/sdk-dotnet/compare/1.16.0...1.17.0