Highlights:
Online region repartition (SPLIT/MERGE) to adjust partitions at runtime (distributed clusters; shared object storage + GC).
Faster Metric Engine PK filters via memcomparable byte comparisons (microbench: ~20–90× on dense codec).
PromQL planner prefers TSID (skips unnecessary label columns).
Would love feedback from folks running observability/time-series workloads, especially on upgrade paths + repartition behavior in real clusters. GitHub releases/changelog: https://github.com/GreptimeTeam/greptimedb/releases