- Added experimental TSDB memory snapshot on shutdown and configurable scrape intervals/timeout via relabeling, plus new scrape timeout and sample limit metrics.
- Improved performance: optimized WAL loading, remote write exemplar throughput, reduced allocations in scrape parsing, and docker service discovery now supports host network mode.
- Fixed several panics and bugs in exemplar handling, TSDB head appenders, promtool backfill behavior, and configuration reloading.
2.30.0 / 2021-09-14
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Deprecate non‑true/all values for the stats query parameter on /api/v1/query and /api/v1/query_range, now returning a warning and slated for removal in the next major release.
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