Release notes for Mimir 2.10

[colega]

What this PR does

Publishes the release notes for Mimir 2.10.

Which issue(s) this PR fixes or relates to

#5849

Checklist

• Tests updated
• Documentation added
• CHANGELOG.md updated - the order of entries should be [CHANGE], [FEATURE], [ENHANCEMENT], [BUGFIX]

[dimitarvdimitrov]

Thanks for writing, I left a couple of small suggestions

[dimitarvdimitrov]

LGTM

[osg-grafana]

Please check with @krajorama about https://github.com/grafana/mimir/pull/5873/files#diff-7056e7f8e764ecb6c9252025d8ea49ef0a457eafcff49c998dbdc2e9a8b9696cR53. Otherwise, looks good. :)

[colega]

I see we've been repeating that for a few release notes now, I wonder if we should drop it or we should be explicit on that.

[pracucci]

LGTM!

[krajorama]

Missing release notes about

[FEATURE] Ingester: add new metrics for tracking native histograms in active series: `cortex_ingester_active_native_histogram_series`, `cortex_ingester_active_native_histogram_series_custom_tracker`, `cortex_ingester_active_native_histogram_buckets`, `cortex_ingester_active_native_histogram_buckets_custom_tracker`. The first 2 are the subsets of the existing and unmodified `cortex_ingester_active_series` and `cortex_ingester_active_series_custom_tracker` respectively, only tracking native histogram series, and the last 2 are the equivalents for tracking the number of buckets in native histogram series. #5318

[krajorama]

I see we've been repeating that for a few release notes now, I wonder if we should drop it or we should be explicit on that.

I don't think it hurts to have a reference to the Helm chart. Least effort is to keep copying the sentence :)

[colega]

@krajorama I didn't include new metrics, etc. As they're not really user features but ways to monitor the deployment. Do you think we should include these explicitly?

[krajorama]

@krajorama I didn't include new metrics, etc. As they're not really user features but ways to monitor the deployment. Do you think we should include these explicitly?

Hi @colega I think meta-monitoring and chargeback is a user feature , see for example https://grafana.com/docs/mimir/latest/operators-guide/monitor-grafana-mimir/ and https://grafana.com/docs/mimir/latest/configure/configure-custom-trackers/ . So yes I think it's worth mentioning.

[colega]

@krajorama I've added them: 7662b01