- Fixed a critical XSS issue in the UI and stopped forwarding credentials on cross‑host redirects, tightening security.
- Introduced several experimental features: search API endpoints, new PromQL min_of/max_of functions, smoothed/anchored rate, per‑query samplesRead stats, and TSDB chunk encoding options.
- Boosted performance and stability with faster case‑insensitive regex matching, reduced TSDB overhead and heap allocations, many PromQL/TSDB bug fixes, and added GHCR publishing for container images.
3.13.0 / 2026-07-01
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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.
Fixed TSDB head chunk cache returning samples from the wrong chunk after truncation.
Updated build to Go 1.25.12.