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Cut 1.13.0 #1110

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Cut 1.13.0 #1110

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20 changes: 18 additions & 2 deletions CHANGELOG.md
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## Unreleased

* [CHANGE] Minimum required Go version is now 1.16.
## 1.13.0 / 2022-08-05

* [CHANGE] Minimum required Go version is now 1.17 (we also test client_golang against new 1.19 version).
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* [ENHANCEMENT] Added `prometheus.TransactionalGatherer` interface for `promhttp.Handler` use which allows using low allocation update techniques for custom collectors. #989
* [ENHANCEMENT] Added exemplar support to `prometheus.NewConstHistogram`. See [`ExampleNewConstHistogram_WithExemplar`](prometheus/examples_test.go#L602) example on how to use it. #986
* [ENHANCEMENT] `prometheus/push.Pusher` has now context aware methods that pass context to HTTP request. #1028
* [ENHANCEMENT] `prometheus/push.Pusher` has now `Error` method that retrieve last error. #1075
* [ENHANCEMENT] `testutil.GatherAndCompare` provides now readable diff on failed comparisons. #998
* [ENHANCEMENT] Query API now supports timeouts. #1014
* [ENHANCEMENT] New `MetricVec` method `DeletePartialMatch(labels Labels)` for deleting all metrics that match provided labels. #1013
* [ENHANCEMENT] `api.Config` now accepts passing custom `*http.Client`. #1025
* [BUGFIX] Raise exemplar labels limit from 64 to 128 bytes as specified in OpenMetrics spec. #1091
* [BUGFIX] Allow adding exemplar to +Inf bucket to const histograms. #1094
* [ENHANCEMENT] Most `promhttp.Instrument*` middlewares now supports adding exemplars to metrics. This allows hooking those to your tracing middleware that retrieves trace ID and put it in exemplar if present. #1055
* [ENHANCEMENT] Added `testutil.ScrapeAndCompare` method. #1043
* [BUGFIX] Fixed `GopherJS` build support. #897
* [ENHANCEMENT] :warning: Added way to specify what `runtime/metrics` `collectors.NewGoCollector` should use. See [`ExampleGoCollector_WithAdvancedGoMetrics`](prometheus/collectors/go_collector_latest_test.go#L263). #1102

## 1.12.2 / 2022-05-13

* [CHANGE] Added `collectors.WithGoCollections` that allows to choose what collection of Go runtime metrics user wants: Equivalent of [`MemStats` structure](https://pkg.go.dev/runtime#MemStats) configured using `GoRuntimeMemStatsCollection`, new based on dedicated [runtime/metrics](https://pkg.go.dev/runtime/metrics) metrics represented by `GoRuntimeMetricsCollection` option, or both by specifying `GoRuntimeMemStatsCollection | GoRuntimeMetricsCollection` flag.
* [CHANGE] Added `collectors.WithGoCollections` that allows to choose what collection of Go runtime metrics user wants: Equivalent of [`MemStats` structure](https://pkg.go.dev/runtime#MemStats) configured using `GoRuntimeMemStatsCollection`, new based on dedicated [runtime/metrics](https://pkg.go.dev/runtime/metrics) metrics represented by `GoRuntimeMetricsCollection` option, or both by specifying `GoRuntimeMemStatsCollection | GoRuntimeMetricsCollection` flag. #1031
* [CHANGE] :warning: Change in `collectors.NewGoCollector` metrics: Reverting addition of new ~80 runtime metrics by default. You can enable this back with `GoRuntimeMetricsCollection` option or `GoRuntimeMemStatsCollection | GoRuntimeMetricsCollection` for smooth transition.
* [BUGFIX] Fixed the bug that causes generated histogram metric names to end with `_total`. ⚠️ This changes 3 metric names in the new Go collector that was reverted from default in this release.
* `go_gc_heap_allocs_by_size_bytes_total` -> `go_gc_heap_allocs_by_size_bytes`,
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2 changes: 1 addition & 1 deletion VERSION
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1.12.2
1.13.0