- Added experimental OpenMetrics support and made query sample limits and remote read concurrency configurable (feature).
- Implemented many minor enhancements: s390x Linux support, expanded discovery and SD metrics (Kubernetes, OpenStack, Triton), UI improvements, remote‑read metrics, and reduced memory usage (minor).
- Fixed bugs affecting max/min over time NaN handling, PromQL label count checks, and prevention of duplicate label sets in vectors/matrices (bugfix).
2.5.0 / 2018-11-06
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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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