Prometheus 3.8.0-rc.0

[Jan Fajerski]

We are pleased to announce that Prometheus 3.8 will soon be released,
with a number of enhancements, performance improvements and bug-fixes.

3.8 is going to declare the native histrogram feature as stable.

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

[CHANGE] TSDB: Native Histogram Custom Bounds with a NaN threshold are
now rejected. #17287
[FEATURE] Dockerfile: Add OpenContainers spec labels to Dockerfile. #16483
[FEATURE] SD: Add unified AWS service discovery for ec2, lightsail and
ecs services. #17046
[FEATURE] Native histograms are now a stable, but optional feature,
use the scrape_native_histogram config setting. #17232 #17315
[FEATURE] UI: Support anchored and smoothed keyword in promql editor. #17239
[FEATURE] UI: Show detailed relabeling steps for each discovered target. #17337
[FEATURE] Alerting: Add urlQueryEscape to template functions. #17403
[FEATURE] Promtool: Add Remote-Write 2.0 support to promtool push
metrics via the --protobuf_message flag. #17417

Changelog and binaries are available at

https://github.com/prometheus/prometheus/releases/tag/v3.8.0-rc.0

As usual, container images are available at
https://hub.docker.com/r/prom/prometheus/tags?name=v3.8.0-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.

Jan