prometheus

Update docker.io/prom/prometheus Docker tag to v3.6.0

Michi Kofler-Häusler

25 Sep 2025 — 2 min read

Photo by Christian Paul Stobbe / Unsplash

No issues with this by means of Docker-compose YAML automated GitOps minor update of the Docker container and on the K3s Kubernetes cluster by means of Flux with dependency update facilitated by Mend's Renovate Bot.

This MR contains the following updates:

Package	Update	Change
docker.io/prom/prometheus	minor	`v3.5.0` -> `v3.6.0`

Release Notes

prometheus/prometheus (docker.io/prom/prometheus)

`v3.6.0`: 3.6.0 / 2025-09-17

Compare Source

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

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