Prometheus 3.5.0-rc.0

[Bryan Boreham]

We are pleased to announce that Prometheus 3.5 will soon be released, with a number of enhancements, performance improvements and bug-fixes.

3.5 will be a Long Term Support (LTS) release; see release https://prometheus.io/docs/introduction/release-cycle/

There are a number of new features, and no known breaking changes in this release:

* [FEATURE] PromQL: Add experimental type and unit metadata labels, behind feature flag `type-and-unit-labels`. #16228 #16632 #16718 #16743

* [FEATURE] PromQL: Add `ts_of_(min|max|last)_over_time`, behind feature flag `experimental-promql-functions`. #16722 #16733

* [FEATURE] Scraping: Add global option `always_scrape_classic_histograms` to scrape a classic histogram even if it is also exposed as native. #16452

* [FEATURE] OTLP: Support promoting OTel scope name/version/schema URL/attributes as metric labels, via `otlp.promote_scope_metadata`. #16730 #16760

* [FEATURE] OTLP: New config options `promote_all_resource_attributes` and `ignore_resource_attributes`. #16426

* [FEATURE] Discovery: New service discovery for STACKIT Cloud. #16401

Changelog and binaries are available at

https://github.com/prometheus/prometheus/releases/tag/v3.5.0-rc.0

As usual, container images are available at
https://hub.docker.com/r/prom/prometheus/tags?name=v3.5.0-rc.0 and
https://quay.io/repository/prometheus/prometheus?tab=tags.

Please try out the release candidate on a non-critical environment and let us know what you find.

Bryan Boreham

[Bryan Boreham]

Hi all, please note that a new RC was made with this feature removed:

* [FEATURE] OTLP: Support promoting OTel scope name/version/schema URL/attributes as metric labels, via `otlp.promote_scope_metadata`. #16730 #16760

This was due to some problems discovered in the implementation.

Changelog and binaries are available at

https://github.com/prometheus/prometheus/releases/tag/v3.5.0-rc.1

As usual, container images are available at

https://hub.docker.com/r/prom/prometheus/tags?name=v3.5.0-rc.1 and
https://quay.io/repository/prometheus/prometheus?tab=tags.

Please try out the release candidate on a non-critical environment and let us know what you find.

Bryan Boreham