Errors on GetSystemInfo and healthcheck endpoints for latest SDK versions

Event timeline

How this incident unfolded, from the official status page.

1. Identified

   4 months ago

   Temporal

   Customers on the latest SDK versions may see decompression errors when calling the GetSystemInfo and gRPC health check endpoints, and in rare cases, some workflows may hit a non-determinism error (NDE) during replay. A fix for this is rolling out. Affected versions - Java 1.36.0 Go 1.45.0 TypeScript 1.19.0 Rust 0.5.0 Python 1.29.0 Workaround - Disable gzip compression in the SDK client (set gRPC compression to none)

2. Identified

   4 months ago

   Temporal

   Fix is being rolled out across all regions, current impact is limited to us-west-2 and us-east-1 regions. All systems stable and we're actively monitoring this. Next update will be posted once rollouts completed.

3. Monitoring

   4 months ago

   Temporal

   The fix has been rolled out across all regions, and we are actively monitoring.

4. Resolved

   4 months ago

   Temporal

   The rollout is complete and resolves the compression issues. All listed affected versions should no longer experience any compression-related errors.