- Removed Classic UI (breaking) and switched tracing from Jaeger to OpenTelemetry.
- Introduced numerous enhancements: configurable TSDB chunk queue, UI alerts search bar and color fixes, OpenMetrics support, remote‑read selector option, and added failure counters/user‑agent settings for service discovery.
- Fixed bugs affecting PromQL histogram quantile errors, TSDB shutdown panic, parser metadata typing, UI range input handling, and scrape label‑limit application.