Schema Upgrades

See the 1.21.0 release notes for schema upgrade information for upgrading to the 1.21 series. There are no new schema changes in 1.21.4.

Release Highlights

The release removes recent changes to cache handling to fix regressions that could cause excessive memory usage and block workflows under high load (5dbbc4522ff1d43c4002b9850b5b678054ac5aaf, 6c48ed2d942a95e37ee8b1484546ebcbc8aed552).

Details about the v1.21.0 release can be found here.

Helpful links to get you started with Temporal

Temporal Docs Server Docker Compose Helm Chart

Docker images for this release (use tag 1.21.4)

Server Server With Auto Setup (what is Auto-Setup?) Admin-Tools