Loki v3.7.6 released on 06-08-2026
Loki v3.7.6 is out now. It fixes label-merging behaviour in the queryrange path so the “sketch” component is preserved during MergeLabels, protecting sketch-based approximate counts.
See the GitHub release and compare for the single-commit fix and issue details: https://github.com/grafana/loki/compare/v3.7.5…v3.7.6
What’s in this release
- Preserve sketch in MergeLabels (queryrange) — restores preservation of the sketch when merging labels (commit d48329d, issue #23770).
- Patch update to the 3.7.x line with a focused, single-change bug fix, published 2026-08-06.
- Low-risk, targeted fix for users relying on queryrange label merges and sketch-based semantics.
Upgrade notes
- No breaking changes reported; operators on the 3.7.x branch who depend on sketches in merged label results should upgrade to v3.7.6. Refer to the linked commit and issue for code-level details.
- If you need to roll back, revert to the previous 3.7.x release (v3.7.5) and consult the compare view linked above.
Share any experience or feedback on how the fix affects your queryrange workflows.
