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docs: Update native histograms from experimental to stable feature #2946

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10 changes: 6 additions & 4 deletions docs/concepts/metric_types.md
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Expand Up @@ -70,12 +70,14 @@ remember that the histogram is
[histograms and summaries](/docs/practices/histograms) for details of histogram
usage and differences to [summaries](#summary).

NOTE: Beginning with Prometheus v2.40, there is experimental support for native
histograms. A native histogram requires only one time series, which includes a
NOTE: Beginning with Prometheus v2.40, native histograms are supported as a stable
feature. A native histogram requires only one time series, which includes a
dynamic number of buckets in addition to the sum and count of
observations. Native histograms allow much higher resolution at a fraction of
the cost. Detailed documentation will follow once native histograms are closer
to becoming a stable feature.
the cost compared to classic histograms. They automatically adjust bucket boundaries
based on the observed values, eliminating the need to pre-configure bucket ranges.
For instrumentation details and best practices, see the
[native histograms documentation](/docs/practices/histograms#native-histograms).

NOTE: Beginning with Prometheus v3.0, the values of the `le` label of classic
histograms are normalized during ingestion to follow the format of
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