💥 BREAKING CHANGES

Spring Boot

Customizers

The Java SDK Spring Boot integration now allows multiple customizers for the main Namespace. Multi-Namespace support coming as part of #2656.

Highlights

Environment Configuration

Added a new package temporal-envconfig to support Environment Configuration. Environment Configuration provides a way to configure clients using environment variables and TOML configuration files, rather than setting connection options programmatically in your code.

For more please see our docs page here, Java SDK specific docs coming soon.

What's Changed

2025-08-25 - 4ae92d3 - Ensure namespace exists on worker startup (#2609)
2025-08-28 - 31d044c - Make sure workflow_task_queue_poll_succeed is emitted (#2645)
2025-09-02 - eaad70d - Update Spring Boot README.md to link to docs (#2646)
2025-09-13 - bf0b196 - Allow multiple customizers in Springboot (#2649)
2025-09-18 - c67ca60 - Add NexusInfo (#2658)
2025-09-22 - 5629f0c - Don't set error status on otel spans for benign exceptions (#2663)
2025-09-24 - 4631b16 - Add support for environment config (#2660)
2025-09-25 - 785f5cd - Bump dependencies (#2668)
2025-09-26 - a05c855 - Fix UNKNOWN gRPC error on describe (#2672)
2025-10-09 - 6239adb - Use macOS 15 intel runner (#2678)
2025-10-10 - 89c427e - Fix gradle version determination breaking in some environments (#2682)
2025-10-10 - f9a5d74 - fix: set type metadata on search attribute payloads in test server (#2677)
2025-10-15 - 832785d - Add grpc-inprocess, grpc-util to shaded dependencies (#2686)
2025-10-15 - c040f0d - Add separate deployment name and build id fields for spring (#2681)
2025-10-17 - 69d2363 - Remove experimental status from worker tuners (#2683)
2025-10-21 - c46eb46 - Bump gradle action to v5 (#2700)
2025-10-21 - fd0351c - Add javadocs for in-workflow, workflow stubs (#2701)
2025-10-22 - 1b29853 - finish wiring up cancel cause to Workflow cancellation. (#2695)
2025-10-22 - 4e9cc06 - Set worker version on eager start requests (#2704)
2025-10-22 - 850515b - Align workflow_task_schedule_to_start_latency (#2669)
2025-10-22 - 9c7a5d1 - Update Jackson to 2.15.4 (#2691)
2025-10-22 - 9cd7ca8 - Clean up some test assertions and make sure naming is consistent. (#2690)
2025-10-22 - b12ee45 - Add support for FirstExecutionRunId to cancel and terminate (#2692)
2025-10-22 - b160fb0 - improve error messages in RpcRetryOptions (#2708)
2025-10-22 - f864e8a - Correct Preconditions error message in WorkerFactory (#2693)
2025-10-24 - 019ad70 - Replace tctl references with Temporal CLI (#2688)
2025-10-24 - 1c9b007 - Fix resource based tuner metrics missing temporal_ prefix (#2710)
2025-10-27 - e7c0c2a - Fix envconf path (#2715)
2025-10-29 - 9bc29c8 - Set explicit permissions for GitHub Actions workflows
2025-10-29 - fdf9994 - Report cpu/mem metrics on 0-100 range to match core (#2719)
2025-10-30 - a7e38ec - Add summary to side effect and mutable side effect (#2699)
2025-11-06 - 3f41b69 - Remove experimental labels from poller behavior options (#2721)
2025-11-06 - be353bc - add nightly throughput stress (#2717)
2025-11-12 - 5394310 - Set default workflow task failure cause to unhandled failure (#2706)
2025-11-13 - 7577911 - Add new constructor for WorkflowStub to target correct execution (#2709)