- Added custom retention and delete‑log‑stream capabilities, a new fast pattern LogQL parser, and IP/subnet filtering support.
- Introduced an index gateway, shardable ingester queriers and sharded instant queries, plus recording rules and new LogQL functions (template, math, first/last over time).
- Upgrade breaking change – queries now must include at least one equality matcher; includes a security fix for TenantID path segment restrictions (CVE‑2021‑36156/57) and bug fixes for a memory‑leak and a frontend panic.
v2.3.0
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Breaking: removed experimental LogQL variants() query support.
Fix bug in queryrange MergeLabels to preserve sketch
Preserve sketch data when merging labels in queryrange