V2.9

Grafana Labs is excited to announce the release of Loki 2.9.0 Here’s a summary of new enhancements and important fixes:

Features and enhancements

Structured metadata: The Structured Metadata feature, which was introduced as experimental in release 2.9.0, is generally available as of release 2.9.4.
Query Language Improvements: Several improvements to the query language that speed up line parsing and regex matching. PR #8646, PR #8659, PR #8724, PR #8734, PR #8739, PR #8763, PR #8890, PR #8914
Remote rule evaluation: Rule evaluation can now be handled by queriers to improve speed. PR #8744 PR #8848
Multi-store Index support: Loki now supports reading/writing indexes to multiple object stores which enables the use of different storage buckets across periods for storing index. PR #7754, PR #7447
New volume and volume_range endpoints: Two new endoints, index/volume and index/volume_range, have been added to Loki. They return aggregate volume information from the TSDB index for all streams matching a provided stream selector. This feature was introduced via multiple PRs, including PR #9988, PR #9966, PR #9833, PR #9832, PR #9776, PR #9762, PR #9704, PR #10248, PR #10099, PR #10076, PR #10047 and PR #10045
New Storage Client: Add support for IBM cloud object storage as storage client. PR #8826
Block queries by hash: Queries can now be blocked by a query hash. PR #8953
logfmt stage improvements: logfmt parser now performs non-strict parsing by default which helps scan semi-structured log lines. PR #9626
Deprecations
- Legacy index and chunk stores that are not “single store” (such as tsdb, boltdb-shipper) are deprecated. These storage backends are Cassandra (cassandra), DynamoDB (aws, aws-dynamo), BigTable (bigtable, bigtable-hashed), GCP (gcp, gcp-columnkey), and gRPC (grpc). See https://grafana.com/docs/loki/latest/storage/ for more information.
- The table-manager target is deprecated, because it is not used by “single store” implementations.
- The -boltdb.shipper.compactor.* CLI flags are deprecated in favor of -compactor.*.
- The -ingester.unordered-writes CLI flag is deprecated and will always default to true in the next major release.
- For the full list of deprecations, see CHANGELOG.md

Bug fixes

2.9.4 (2024-01-24)

Fixed a couple of data races that can cause panics due to concurrent read-write access of tenant configs.
Fixed a bug in the log results cache.
Fixed the cache to atomically check background cache size limit correctly.
Fixed the discrepancy between the semantics of logs and metrics queries.
Fixed promtail default scrape config causing CPU and memory load
Update golang.org/x/crypto to v0.18.0

2.9.3 (2023-12-11)

Upgrade otelhttp from 0.40.0 -> 0.44.0 and base alpine image from 3.18.3 -> 3.18.5 to fix a few CVES (CVE-2023-45142, CVE-2022-21698, CVE-2023-5363).
Fix querying ingester for label values with a matcher (previously didn’t respect the matcher).
Ensure all lifecycler cfgs ref a valid IPv6 addr and port combination

2.9.2 (2023-10-16)

Upgrade go to v1.21.3, golang.org/x/net to v0.17.0 and grpc-go to v1.56.3 to patch CVE-2023-39325 / CVE-2023-44487

For a full list of all changes and fixes, look at the CHANGELOG.

2.9.1 (2023-09-14)

Update Docker base images to mitigate security vulnerability CVE-2022-48174
Fix bugs in indexshipper (tsdb, boltdb-shipper) that could result in not showing all ingested logs in query results.