- Added multiple PromQL enhancements including stable smoothed/anchored selectors, experimental integral() and query cost estimation, start‑timestamp handling via header, and Unicode support in identifiers.
- Improved Remote Write/Read and TSDB with new metadata handling, exemplar validation, deduplication, performance optimizations, and removal of deprecated remote‑storage metrics.
- Fixed numerous bugs across API, PromQL, TSDB, OTLP, discovery and search, and added several experimental flags and performance tweaks.