- Upgrade Go builder from 1.26.3 to 1.26.4, addressing Go security fixes.
- Fix MetricsQL integrate() to stop extrapolating past series end, and correct vmalert group evaluation timestamps after system clock shifts.
- Resolve multiple cluster issues: avoid HTTP 503 on partial results, properly escape UTF‑8 labels in /federate, and prevent intermittent connection‑timed‑out errors.