Loki v3.7.6 released on 06-08-2026
Loki v3.7.6 is out now. Operators and users who run queries that merge labels will no longer lose sketch metadata during queryrange operations.
See the release notes on the Loki GitHub for full details and the commit that implements the change.
What’s in this release
- Bug fix: Preserve sketch metadata in MergeLabels on the queryrange path (fixes issue #23770; implemented in commit d48329d).
- Affects queries that perform label merging and features that rely on sketches, such as approximate counts and cardinality estimations.
- Small patch release in the 3.7.x line to ensure sketch data is preserved when label sets are merged.
Upgrade notes
- No other functional changes are indicated; roll this patch into staging and validate queries that use MergeLabels and sketches by comparing pre- and post-upgrade results and watching query-related logs for unexpected errors.
- No rollback instructions are provided in the release notes; if issues persist, reference issue #23770 and commit d48329d when filing follow-ups.
Share your experience with the upgrade and any unexpected query behaviour on the Loki GitHub issue tracker, referencing issue #23770 where relevant.
