- Introduce experimental native histogram support with a flag and switch default exposition to protobuf
- Add new service discovery integrations for OVHcloud and Consul enterprise admin partitions
- Enhance Kubernetes SD protobuf encoding, improve TSDB sorting speed, and fix API error codes for /api/v1/labels and /api/v1/series
2.40.0 / 2022-11-08
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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.