NewYour coding agent can read the release notes before it upgrades.Set up the MCP server →

Go modules · #245 by repository stars

github.com/thanos-io/thanos

v0.42.4thanos-io/thanos ↗New releases in your daily digest, changelog included.

Last release 5 days ago
02 Oct 2026
Ships on a steady schedule
a new release about every 9 days
Nearly every release is documented
notes for 59 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
9 years old
1523 releases · first in 2018

Release timeline

1523 releases since 2018

2018202020222024

Releases

v0.32.023 Aug 20232 sources agree
### Added - #6437 Receive: make tenant stats limit configurable - #6369 Receive: add az-aware replication support for Ketama algorithm - #6185 Tracing
Added

#6437 Receive: make tenant stats limit configurable

#6369 Receive: add az-aware replication support for Ketama algorithm

#6185 Tracing: tracing in OTLP support configuring service_name.

#6192 Store: add flag bucket-web-label to select the label to use as timeline title in web UI

#6195 Receive: add flag tsdb.too-far-in-future.time-window to prevent clock skewed samples to pollute TSDB head and block all valid incoming samples.

#6273 Mixin: Allow specifying an instance name filter in dashboards

#6163 Receiver: Add hidden flag --receive-forward-max-backoff to configure the max backoff for forwarding requests.

#5777 Receive: Allow specifying tenant-specific external labels in Router Ingestor.

#6352 Store: Expose store gateway query stats in series response hints.

#6420 Index Cache: Cache expanded postings.

#6441 Compact: Compactor will set index_stats in meta.json file with max series and chunk size information.

#6466 Mixin (Receive): add limits alerting for configuration reload and meta-monitoring.

#6467 Mixin (Receive): add alert for tenant reaching head series limit.

#6528 Index Cache: Add histogram metric thanos_store_index_cache_stored_data_size_bytes for item size.

#6560 Thanos ruler: add flag to optionally disable adding Thanos params when querying metrics

#6574 Tools: Add min and max compactions range flags to bucket replicate command.

#6593 Store: Add thanos_bucket_store_chunk_refetches_total metric to track number of chunk refetches.

#6264 Query: Add Thanos logo in navbar

#6234 Query: Add ability to switch between thanos and prometheus engines dynamically via UI and API.

#6346 Query: Add ability to generate SQL-like query explanations when thanos engine is used.

#6646 Compact and Bucket: Add --disable-admin-operations flag in Compactor UI and Bucket UI

Fixed

#6503 *: Change the engine behind ContentPathReloader to be completely independent of any filesystem concept. This effectively fixes this configuration reload when used with Kubernetes ConfigMaps, Secrets, or other volume mounts.

#6456 Store: fix crash when computing set matches from regex pattern

#6427 Receive: increased log level for failed uploads to error

#6172 query-frontend: return JSON formatted errors for invalid PromQL expression in the split by interval middleware.

#6171 Store: fix error handling on limits.

#6183 Receiver: fix off by one in multitsdb flush that will result in empty blocks if the head only contains one sample

#6197 Exemplar OTel: Fix exemplar for otel to use traceId instead of spanId and sample only if trace is sampled

#6207 Receive: Remove the shipper once a tenant has been pruned.

#6216 Receiver: removed hard-coded value of EnableExemplarStorage flag and set it according to max-exemplar value.

#6222 mixin(Receive): Fix tenant series received dashboard widget.

#6218 mixin(Store): handle ResourceExhausted as a non-server error. As a consequence, this error won't contribute to Store's grpc errors alerts.

#6271 Receive: Fix segfault in LabelValues during head compaction.

#6306 Tracing: tracing in OTLP utilize the OTEL_TRACES_SAMPLER env variable

#6330 Store: Fix inconsistent error for series limits.

#6342 Cache/Redis: Upgrade rueidis to v1.0.2 to to improve error handling while shrinking a redis cluster.

#6325 Store: return gRPC resource exhausted error for byte limiter.

#6399 *: Fix double-counting bug in http_request_duration metric

#6428 Report gRPC connection errors in the logs.

#6519 Reloader: Use timeout for initial apply.

#6509 Store Gateway: Remove memWriter from fileWriter to reduce memory usage when sync index headers.

#6556 Thanos compact: respect block-files-concurrency setting when downsampling

#6592 Query Frontend: fix bugs in vertical sharding without and union function to allow more queries to be shardable.

#6317 *: Fix internal label deduplication bug, by resorting store response set.

#6189 Rule: Fix panic when calling API /api/v1/rules?type=alert.

#6598 compact: fix data corruption with "invalid size" error during downsample

Changed

#6049 Compact: breaking :warning: Replace group with resolution in compact metrics to avoid cardinality explosion on compact metrics for large numbers of groups.

#6168 Receiver: Make ketama hashring fail early when configured with number of nodes lower than the replication factor.

#6201 Query-Frontend: Disable absent and absent_over_time for vertical sharding.

#6212 Query-Frontend: Disable scalar for vertical sharding.

#6107 breaking :warning: Change default user id in container image from 0(root) to 1001

#6228 Conditionally generate debug messages in ProxyStore to avoid memory bloat.

#6231 mixins: Add code/grpc-code dimension to error widgets.

#6244 mixin(Rule): Add rule evaluation failures to the Rule dashboard.

#6303 Store: added and start using streamed snappy encoding for postings list instead of block based one. This leads to constant memory usage during decompression. This approximately halves memory usage when decompressing a postings list in index cache.

#6071 Query Frontend: breaking :warning: Add experimental native histogram support for which we updated and aligned with the Prometheus common model, which is used for caching so a cache reset required.

#6163 Receiver: changed default max backoff from 30s to 5s for forwarding requests. Can be configured with --receive-forward-max-backoff.

#6327 *: breaking :warning: Use histograms instead of summaries for instrumented handlers.

#6322 Logging: Avoid expensive log.Valuer evaluation for disallowed levels.

#6358 Query: Add +Inf bucket to query duration metrics

#6363 Store: Check context error when expanding postings.

#6405 Index Cache: Change postings cache key to include the encoding format used so that older Thanos versions would not try to decode it during the deployment of a new version.

#6479 Store: breaking :warning: Rename thanos_bucket_store_cached_series_fetch_duration_seconds to thanos_bucket_store_series_fetch_duration_seconds and thanos_bucket_store_cached_postings_fetch_duration_seconds to thanos_bucket_store_postings_fetch_duration_seconds.

#6474 Store/Compact: Reduce a large amount of Exists API calls against object storage when synchronizing meta files in favour of a recursive Iter call.

#6548 Objstore: Bump minio-go to v7.0.61.

#6187 *: Unify gRPC flags for all servers.

#6267 Query: Support unicode external label truncation.

#6371 Query: Only keep name in UI store_matches param.

#6609 *: Bump go4.org/intern to fix Go 1.21 builds.

Removed

#6496 *: Remove unnecessary configuration reload from ContentPathReloader and improve its tests.

#6432 Receive: Remove duplicated gopkg.in/fsnotify.v1 dependency.

#6332 *: Remove unmaintained gzip dependency.