- Security: upgraded golang.org/x/crypto to patch CVE‑2024‑45337.
- Bugfixes: fixed many stability issues (segfault on exit, histogram handling in PromQL, race conditions in TSDB, panics in remote write/scrape, UI selector errors, etc.).
- Enhancements & performance: added pagination for rule groups, new rule‑duration metric, preserved OTLP identifying attributes, and numerous TSDB/remote‑write optimizations.
3.1.0 / 2025-01-02
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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.