Prometheus 3.6.0

Release · · Official release notes ↗

← All Prometheus releases · Searchable index of all 403 changes

Changelog

PR / issue Type Description
#16777 Feature PromQL: Add step, and min and max on durations, behind feature flag promql-duration-expr.
#16695 Feature API: Add a /v1/status/tsdb/blocks endpoint exposing metadata about loaded blocks.
#16619 Feature Templates: Add toDuration and now functions.
#16831 Enhancement Discovery: Add support for attaching namespace metadata to targets.
#16849 Enhancement OTLP: Support new UnderscoreEscapingWithoutSuffixes strategy via otlp.translation_strategy.
#16878 Enhancement OTLP: Support including scope metadata as metric labels via otlp.promote_scope_metadata.
#16630 Enhancement OTLP: Add __type__ and __unit__ labels when feature flag type-and-unit-labels is enabled.
#16425 Enhancement Tracing: Send the traceparent HTTP header during scrapes.
#16901 Enhancement UI: Add option to disable info and warning query messages under Query page settings.
#16910 Enhancement UI: Improve metadata handling for _count/_sum/_bucket suffixes.
#16925 Enhancement TSDB: Track stale series in the Head block via the prometheus_tsdb_head_stale_series metric.
#16797 Performance PromQL: Improve performance due to internal optimizations.
#16801 Bug fix Config: Fix "unknown global name escaping method" error messages produced during config validation.
#16820 Bug fix Discovery: Fix race condition during shutdown.
#16737 Bug fix OTLP: Generate target_info samples between the earliest and latest samples per resource.
#16725 Bug fix PromQL: Fail when NaN is passed as parameter to topk, bottomk, limitk and limit_ratio.
#16828 Bug fix PromQL: Fix extrapolation for native counter histograms.
#16895 Bug fix PromQL: Reduce numerical errors by disabling some optimizations.
#16879 Bug fix PromQL: Fix inconsistencies when using native histograms in subqueries.
#16915 Bug fix PromQL: Fix inconsistent annotations for rate and increase on histograms when feature flag type-and-unit-labels is enabled.
#16946 Bug fix Scraping: Fix memory corruption in slicelabels builds.
#16332 Bug fix TSDB: Fix panic on append when feature flag created-timestamp-zero-ingestion is enabled.
#16893 Bug fix TSDB: Fix panic on append for native histograms with empty buckets.

Reproduced from the official Prometheus 3.6.0 release notes. Last checked 7 Jul 2026, 21:23 UTC.