- [CHANGE] Remote-write: the following metrics are deprecated:
prometheus_remote_storage_samples_in_total, useprometheus_wal_watcher_records_read_total{type="samples"}andprometheus_remote_storage_samples_dropped_totalinstead,prometheus_remote_storage_histograms_in_total, useprometheus_wal_watcher_records_read_total{type=~".*histogram_samples"}andprometheus_remote_storage_histograms_dropped_totalinstead,prometheus_remote_storage_exemplars_in_total, useprometheus_wal_watcher_records_read_total{type="exemplars"}andprometheus_remote_storage_exemplars_dropped_totalinstead,prometheus_remote_storage_highest_timestamp_in_seconds, use the more accurateprometheus_remote_storage_queue_highest_timestamp_secondsinstead in dashboards and alerts to properly account for relabeling and for more accuracy. [#17065]- [FEATURE] PromQL: Add support for experimental anchored and smoothed rate behind feature flag
promql-extended-range-selectors. [#16457] - [FEATURE] Federation: Add support for native histograms with custom buckets (NHCB). [#17215]
- [FEATURE] PromQL: Add
first_over_time(...)andts_of_first_over_time(...)behind feature flagexperimental-promql-functions. [#16963] [#17021] - [FEATURE] Remote-write: Add support for Azure Workload Identity as an authentication method for the receiver. [#16788]
- [FEATURE] Remote-write: Add type and unit labels to outgoing time series in remote-write 2.0 when the
type-and-unit-labelsfeature flag is enabled. [#17033] - [FEATURE] OTLP: Write start time of metrics as created time zero samples into TSDB when
created-timestamp-zero-ingestionfeature flag is enabled. [#16951] - [ENHANCEMENT] PromQL: Add warn-level annotations for counter reset conflicts in certain histogram operations. [#17051] [#17094]
- [ENHANCEMENT] UI: Add scrape interval and scrape timeout to targets page. [#17158]
- [ENHANCEMENT] TSDB: Reduce the resolution of native histograms read from chunks or remote read if the schema is exponential. [#17213]
- [ENHANCEMENT] Remote write: Add logging for unexpected metadata in sample batches, when metadata entries are found in samples-only batches. [#17034] [#17082]
- [ENHANCEMENT] Rules: Support concurrent evaluation for rules querying
ALERTSandALERTS_FOR_STATE. [#17064] - [ENHANCEMENT] TSDB: Add logs to improve visibility into internal operations. [#17074]
- [PERF] OTLP: Write directly to TSDB instead of passing through a Remote-Write adapter when receiving OTLP metrics. [#16951]
- [PERF] OTLP: Reduce number of logs emitted from OTLP endpoint. No need to log duplicate sample errors. [#17201]
- [PERF] PromQL: Move more work to preprocessing step. [#16896]
- [PERF] PromQL: Reduce allocations when walking the syntax tree. [#16593]
- [PERF] TSDB: Optimize appender creation, slightly speeding up startup. [#16922]
- [PERF] TSDB: Improve speed of querying a series with multiple matchers. [#13971]
- [BUGFIX] Alerting: Mutating alerts relabeling (using
replaceactions, etc.) within aalertmanager_config.alert_relabel_configsblock is now scoped correctly and no longer yields altered alerts to subsequent blocks. [#17063] - [BUGFIX] Config: Infer valid escaping scheme when scrape config validation scheme is set. [#16923]
- [BUGFIX] TSDB: Correctly handle appending mixed-typed samples to the same series. [#17071] [#17241] [#17290] [#17295] [#17296]
- [BUGFIX] Remote-write: Prevent sending unsupported native histograms with custom buckets (NHCB) over Remote-write 1.0, log warning. [#17146]
- [BUGFIX] TSDB: Fix metadata entries handling on
metadata-wal-recordsexperimental feature for native histograms with custom buckets (NHCB) in protobuf scraping. [#17156] - [BUGFIX] TSDB: Ignore Native Histograms with invalid schemas during WAL/WBL replay. [#17214]
- [BUGFIX] PromQL: Avoid empty metric names in annotations for
histogram_quantile(). [#16794] - [BUGFIX] PromQL: Correct inaccurate character positions in errors for some aggregate expressions. [#16996] [#17031]
- [BUGFIX] PromQL: Fix
info()function on churning series. [#17135] - [BUGFIX] PromQL: Set native histogram to gauge type when subtracting or multiplying/dividing with negative factors. [#17004]
- [BUGFIX] TSDB: Reject unsupported native histogram schemas when attempting to append to TSDB. For scrape and remote-write implement reducing the resolution to fit the maximum if the schema is within the -9 to 52. [#17189]
- [BUGFIX] Remote-write: Fix HTTP handler to return after writing error response for invalid compression. [#17050]
- [BUGFIX] Remote-write: Return HTTP error
400instead of5xxfor wrongly formatted Native Histograms. [#17210] - [BUGFIX] Scrape: Prevent staleness markers from generating unnecessary series. [#16429]
- [BUGFIX] TSDB: Avoid misleading
Failed to calculate size of \"wal\" direrror logs during WAL clean-up. [#17006] - [BUGFIX] TSDB: Prevent erroneously dropping series records during WAL checkpoints. [#17029]
- [BUGFIX] UI: Fix redirect to path of
-web.external-urlif-web.route-prefixis configured. [#17240] - [BUGIFX] Remote-write: Do not panic on invalid symbol table in remote-write 2.0. [#17160]