- Introduced optional “stringlabels” build/tag and Docker image for reduced heap usage and speed improvements in label handling.
- Added HTTP client configuration options (no‑proxy, env‑based proxy) and Promtool query HTTP settings; expanded scrape config to include multiple files and exemplars for all metric types.
- Implemented TSDB, API, and UI enhancements (per‑query lookback delta, corrected cancelled request status, scoped label autocompletion) and fixed several bugs in target limit metrics and TSDB chunk accounting.
2.43.0 / 2023-03-21
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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.
Updated golang.org/x/text to v0.39.0 and google.golang.org/grpc to v1.82.1, fixing CVE‑2026‑56852 and GHSA‑hrxh‑6v49‑42gf.