- Promtool now supports PromQL formatting, label matcher set/delete commands, a push metrics command, and reads from stdin when no files are given for rule checks.
- TSDB gains Zstandard compression for write-ahead logs, native histogram support in snapshots on shutdown, and other enhancements like initializing HTTP request metrics.
- Numerous bugfixes: histogram parsing and ingestion fixes, Windows file‑SD directory monitoring, Linode SD overflow prevention, active query tracking for PromQL, and TSDB TOC parsing robustness.
2.46.0 / 2023-07-25
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