Prometheus v2.11 Released

Prometheus v2.11, released on July 9, introduces several enhancements and new features following its adoption of a six-week release cycle post-graduation from CNCF. Key updates include an option to compress WAL records using Snappy, improvements in query performance, and a change in metric names, such as renaming prometheus_tsdb_wal_reader_corruption_errors to prometheus_tsdb_wal_reader_corruption_errors_total and adding a new metric prometheus_http_requests_total. The release also allows the use of Alertmanager API v2 and introduces Kubernetes service discovery for initContainers, which may provide valuable troubleshooting information. Performance enhancements include reduced allocations in PromQL aggregations, remote-write allocation improvements, and optimized query handling using regular expressions for set lookups, particularly benefitting Grafana dashboards. The update also addresses a bug related to unsafe snapshots. Users are encouraged to review the release notes for a comprehensive overview and to download the new version.

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