Timing

When all P1 and P2 items in the Native Histograms milestone are merged.

Code

Remove the --enable-feature=native-histograms feature flag.

Documentation

Documentation should be updated to remove references to experimental. Including but not exclusive to : the specification and descriptions of PromQL.

Scrape protocols

No OpenMetrics 2.0 in time

Currently this would mean switching the scrape protocol order from
OpenMetricsText1.0.0, OpenMetricsText0.0.1, PrometheusText0.0.4 to the new order of PrometheusProto, OpenMetricsText1.0.0, OpenMetricsText0.0.1, PrometheusText0.0.4.

We need to verify that changing to ProtoBuf does not cause a significant overhead, otherwise this is breaking. In any case document that one can disable ProtoBuf via the scrape_protocols configuration options.

OpenMetrics 2.0

Switch default scrape protocols to OpenMetricsText2.0.0, OpenMetricsText1.0.0, OpenMetricsText0.0.1, PrometheusText0.0.4.