- Added new features: Kubernetes SD failure metric and node/zone metadata, Azure authorization SDK support, native histogram templating for alerting, IPv6 range discovery in Linode SD, and several PromQL/TSDB performance improvements.
- Fixed bugs across components: TSDB predicate at retention boundary, histogram sample counting, duplicate label handling, native histogram schema factor, memory leak in Remote Read, API cancellation handling, and promtool panic.
- Enhanced observability with new logging for signal handling, drop series, WAL replay, block creation, and added a metric for duplicate timestamp samples during scrapes.