This release contains 11 PRs from 6 authors. Thank you!

Changelog

2.17.2

Grafana Mimir

• [BUGFIX] Add a missing attribute to the list of default promoted OTel resource attributes in the docs: deployment.environment. #12181
• [BUGFIX] Ingest: Fix memory pool poisoning in Remote-Write 2.0/OTLP by not cleaning created timestamp field before returning time series to the memory pool. #12735
• [BUGFIX] Distributor: Fix error when native histograms bucket limit is set then no NHCB passes validation. #12746
• [BUGFIX] Update Docker base images for tools from alpine:3.22.1 to alpine:3.22.2 to address CVE-2025-9230, CVE-2025-9231, CVE-2025-2025-9232. #12993
• [BUGFIX] Memcached: Ignore invalid responses when discovering cache servers using dnssrv+ or dnssrvnoa+ service discovery prefixes. #13206

Tools

• [ENHANCEMENT] Base mimirtool, metaconvert, copyblocks, and query-tee images on distroless/static-debian12. #13014

All changes in this release: mimir-2.17.1...mimir-2.17.2