Prometheus v3.10.0 released on 26-02-2026

Prometheus v3.10.0 is out now. This release introduces a distroless Docker image variant for enhanced security, alongside significant improvements in alerting metrics and new features in PromQL and the web interface.
Users need to visit the product GitHub or official pages for more information.
What’s in this release
- Introduction of a distroless Docker image variant for improved security, using UID/GID 65532.
- New PromQL modifiers `fill()`, `fill_left()`, and `fill_right()` for specifying default values for missing series.
- Added MSK Role for AWS Service Discovery and OpenAPI 3.2 specification for the HTTP API.
Upgrade notes
- Users migrating from the busybox image to the distroless variant should adjust volume ownership accordingly.
- Rollback to the busybox image is possible by using the appropriate tag suffix.
We invite users to share their comments on their experience with this release.