- Added OTLP translation and ingest features (native histogram flag, optional name/attribute translation, delta metrics support) and PromQL enhancements (arithmetic in durations, histogram fraction, corrected stddev/stdvar calculations).
- Introduced new configuration options (convert classic histograms, escape scheme request, alertmanager notification batch size) and metrics for TSDB WAL replay unknown series references.
- Fixed bugs in config auto‑reload, native histogram ingestion gating, TSDB duplicate series handling, exemplar time range handling, promtool feature flags, and rule logging; improved Kubernetes endpointSlice discovery performance.