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chore: rename module to @prometheus/client_js #751

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71443bb
chore: rename module to @prometheus/client_js
cjihrig Jun 25, 2026
63b3e6e
rename module to @prometheus-io/client
cjihrig Jun 25, 2026
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98 changes: 49 additions & 49 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -53,14 +53,14 @@ project adheres to [Semantic Versioning](http://semver.org/).

### Added

- Enable `bun.js` by catching `NotImplemented` error (Fixes [#570](https://github.com/siimon/prom-client/issues/570))
- Enable `bun.js` by catching `NotImplemented` error (Fixes [#570](https://github.com/prometheus/client_js/issues/570))

## [15.1.1] - 2024-03-26

### Changed

- Improve the memory usage of histograms when the `enableExemplars` option is disabled
- fix: Avoid updating exemplar values during subsequent metric changes (Fixes [#616](https://github.com/siimon/prom-client/issues/616))
- fix: Avoid updating exemplar values during subsequent metric changes (Fixes [#616](https://github.com/prometheus/client_js/issues/616))

## [15.1.0] - 2023-12-15

Expand All @@ -75,7 +75,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
- Allow Pushgateway to now require job names for compatibility with Gravel Gateway.
- Allow `histogram.startTime()` to be used with exemplars.

[15.1.0]: https://github.com/siimon/prom-client/compare/v15.0.0...v15.1.0
[15.1.0]: https://github.com/prometheus/client_js/compare/v15.0.0...v15.1.0

## [15.0.0] - 2023-10-09

Expand All @@ -101,7 +101,7 @@ project adheres to [Semantic Versioning](http://semver.org/).

- Support for OpenMetrics and Exemplars

[15.0.0]: https://github.com/siimon/prom-client/compare/v14.2.0...v15.0.0
[15.0.0]: https://github.com/prometheus/client_js/compare/v14.2.0...v15.0.0

## [14.2.0] - 2023-03-06

Expand All @@ -119,15 +119,15 @@ project adheres to [Semantic Versioning](http://semver.org/).

- Add `get` method to type definitions of metric classes

[14.2.0]: https://github.com/siimon/prom-client/compare/v14.1.1...v14.2.0
[14.2.0]: https://github.com/prometheus/client_js/compare/v14.1.1...v14.2.0

## [14.1.1] - 2022-12-31

### Changed

- Increase compatibility with external build system such as `rollup` by making perf_hooks optional in gc.js

[14.1.1]: https://github.com/siimon/prom-client/compare/v14.1.0...v14.1.1
[14.1.1]: https://github.com/prometheus/client_js/compare/v14.1.0...v14.1.1

## [14.1.0] - 2022-08-23

Expand Down Expand Up @@ -156,15 +156,15 @@ project adheres to [Semantic Versioning](http://semver.org/).

- Support gzipped pushgateway requests

[14.1.0]: https://github.com/siimon/prom-client/compare/v14.0.1...v14.1.0
[14.1.0]: https://github.com/prometheus/client_js/compare/v14.0.1...v14.1.0

## [14.0.1] - 2021-11-02

### Changed

- changed: typedef for pushgateway to reflect js implementation.

[14.0.1]: https://github.com/siimon/prom-client/compare/v14.0.0...v14.0.1
[14.0.1]: https://github.com/prometheus/client_js/compare/v14.0.0...v14.0.1

## [14.0.0] - 2021-09-18

Expand All @@ -173,7 +173,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
- changed: `linearBuckets` does not propagate rounding errors anymore.

Fewer bucket bounds will be affected by rounding errors. Histogram bucket
labels may change. [`6f1f3b2`](https://github.com/siimon/prom-client/commit/6f1f3b24c9c21311ff33e7d4b987b40c6b304e04)
labels may change. [`6f1f3b2`](https://github.com/prometheus/client_js/commit/6f1f3b24c9c21311ff33e7d4b987b40c6b304e04)

- changed: The push gateway methods `pushAdd()`, `push()` and `delete()` now
return Promises instead of accepting a callback:
Expand All @@ -190,20 +190,20 @@ project adheres to [Semantic Versioning](http://semver.org/).
const { resp, body } = await gateway.pushAdd({ jobName: 'test' });
```

[`f177b1f`](https://github.com/siimon/prom-client/commit/f177b1fd3d4db5fc48fcb1ec02d94069fffcf144)
[`f177b1f`](https://github.com/prometheus/client_js/commit/f177b1fd3d4db5fc48fcb1ec02d94069fffcf144)

- changed: The default `nodejs_eventloop_lag_*` metrics are now reset every time
they are observed. This prevents these metrics from "stabilizing" over a long
period of time and becoming insensitive to small changes. For more info, see
[#370](https://github.com/siimon/prom-client/issues/370). [`0f444cd`](https://github.com/siimon/prom-client/commit/0f444cd38e4c7074991270106c270f731bafddb8)
[#370](https://github.com/prometheus/client_js/issues/370). [`0f444cd`](https://github.com/prometheus/client_js/commit/0f444cd38e4c7074991270106c270f731bafddb8)

### Changed

- Add missing `await`/`then`s to examples. [`074f339`](https://github.com/siimon/prom-client/commit/074f339914e5d71b5829cd4a949affae23dbc409)
- Add missing type declaration for `client.contentType`. [`3b66641`](https://github.com/siimon/prom-client/commit/3b6664160bdd1555045b03d8f4c421022f30e1db)
- Modernize some label processing code. [`c9bf1d8`](https://github.com/siimon/prom-client/commit/c9bf1d8e3db3b5fb97faf2df9ca9b9af670288f3)
- Add missing `await`/`then`s to examples. [`074f339`](https://github.com/prometheus/client_js/commit/074f339914e5d71b5829cd4a949affae23dbc409)
- Add missing type declaration for `client.contentType`. [`3b66641`](https://github.com/prometheus/client_js/commit/3b6664160bdd1555045b03d8f4c421022f30e1db)
- Modernize some label processing code. [`c9bf1d8`](https://github.com/prometheus/client_js/commit/c9bf1d8e3db3b5fb97faf2df9ca9b9af670288f3)

[14.0.0]: https://github.com/siimon/prom-client/compare/v13.2.0...v14.0.0
[14.0.0]: https://github.com/prometheus/client_js/compare/v13.2.0...v14.0.0

## [13.2.0] - 2021-08-08

Expand All @@ -212,30 +212,30 @@ project adheres to [Semantic Versioning](http://semver.org/).
- Don't add event listener to `process` if cluster module is not used.
- fix: set labels for default memory metrics on linux.
- fix: fix DEP0152 deprecation warning in Node.js v16+.
- fix: Set aggregation mode for newer event loop metrics. (Fixes [#418](https://github.com/siimon/prom-client/issues/418))
- fix: Set aggregation mode for newer event loop metrics. (Fixes [#418](https://github.com/prometheus/client_js/issues/418))
- Improve performance of/reduce memory allocations in Gauge.

### Added

- feat: added `zero()` to `Histogram` for setting the metrics for a given label combination to zero
- fix: allow `Gauge.inc/dec(0)` without defaulting to 1

[13.2.0]: https://github.com/siimon/prom-client/compare/v13.1.0...v13.2.0
[13.2.0]: https://github.com/prometheus/client_js/compare/v13.1.0...v13.2.0

## [13.1.0] - 2021-01-24

### Changed

- fix: push client attempting to write Promise (fixes [#390](https://github.com/siimon/prom-client/issues/390))
- fix: push client attempting to write Promise (fixes [#390](https://github.com/prometheus/client_js/issues/390))
- types: improve type checking of labels
- fix: Summary#observe should throw when adding additional labels to labelset (fixes [#262](https://github.com/siimon/prom-client/issues/262))
- fix: Summary#observe should throw when adding additional labels to labelset (fixes [#262](https://github.com/prometheus/client_js/issues/262))

### Added

- feat: added the ability to pass labels as an object to `labels()` and `remove()`
- Added: More examples with commented output

[13.1.0]: https://github.com/siimon/prom-client/compare/v13.0.0...v13.1.0
[13.1.0]: https://github.com/prometheus/client_js/compare/v13.0.0...v13.1.0

## [13.0.0] - 2020-12-16

Expand Down Expand Up @@ -284,7 +284,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
- feat: added support for adding labels to default metrics (#374)
- Added CHANGELOG reminder

[13.0.0]: https://github.com/siimon/prom-client/compare/v12.0.0...v13.0.0
[13.0.0]: https://github.com/prometheus/client_js/compare/v12.0.0...v13.0.0

## [12.0.0] - 2020-02-20

Expand Down Expand Up @@ -316,7 +316,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
- feat: implement GC metrics collection without native(C++) modules.
- feat: implement advanced event loop monitoring

[12.0.0]: https://github.com/siimon/prom-client/compare/v11.5.3...v12.0.0
[12.0.0]: https://github.com/prometheus/client_js/compare/v11.5.3...v12.0.0

## [11.5.3] - 2019-06-27

Expand All @@ -325,23 +325,23 @@ project adheres to [Semantic Versioning](http://semver.org/).
- Parameter `compressCount` in Summaries to control compression of data in t-digest.
- Compress t-digest in Summaries

[11.5.3]: https://github.com/siimon/prom-client/compare/v11.5.2...v11.5.3
[11.5.3]: https://github.com/prometheus/client_js/compare/v11.5.2...v11.5.3

## [11.5.2] - 2019-06-20

### Changed

- fix: avoid mutation bug in registry

[11.5.2]: https://github.com/siimon/prom-client/compare/v11.5.1...v11.5.2
[11.5.2]: https://github.com/prometheus/client_js/compare/v11.5.1...v11.5.2

## [11.5.1] - 2019-06-13

### Changed

- fix: guard against missing constructor

[11.5.1]: https://github.com/siimon/prom-client/compare/v11.5.0...v11.5.1
[11.5.1]: https://github.com/prometheus/client_js/compare/v11.5.0...v11.5.1

## [11.5.0] - 2019-06-04

Expand All @@ -350,7 +350,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
- Added `timestamps` toggle to `collectDefaultMetrics` options
- Export `validateMetricName`

[11.5.0]: https://github.com/siimon/prom-client/compare/v11.4.0...v11.5.0
[11.5.0]: https://github.com/prometheus/client_js/compare/v11.4.0...v11.5.0

## [11.4.0] - 2019-06-04

Expand All @@ -359,7 +359,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
- `nodejs_active_handles` metric to the `collectDefaultMetrics()`. Unlike `nodejs_active_handles_total` it split count of active handles by type.
- `nodejs_active_requests` metric to the `collectDefaultMetrics()`. Unlike `nodejs_active_requests_total` it split count of active requests by type.

[11.4.0]: https://github.com/siimon/prom-client/compare/v11.3.0...v11.4.0
[11.4.0]: https://github.com/prometheus/client_js/compare/v11.3.0...v11.4.0

## [11.3.0] - 2019-04-02

Expand All @@ -372,7 +372,7 @@ project adheres to [Semantic Versioning](http://semver.org/).

- Added a `remove()` method on each metric type, based on [Prometheus "Writing Client Libraries" section on labels](https://prometheus.io/docs/instrumenting/writing_clientlibs/#labels)

[11.3.0]: https://github.com/siimon/prom-client/compare/v11.2.1...v11.3.0
[11.3.0]: https://github.com/prometheus/client_js/compare/v11.2.1...v11.3.0

## [11.2.1]

Expand All @@ -384,7 +384,7 @@ project adheres to [Semantic Versioning](http://semver.org/).

- Updated types for Summary in typescript definition file

[11.2.1]: https://github.com/siimon/prom-client/compare/v11.2.0...v11.2.1
[11.2.1]: https://github.com/prometheus/client_js/compare/v11.2.0...v11.2.1

## [11.2.0]

Expand All @@ -397,7 +397,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
- Added an initial `benchmark` suite which can be run with `npm run benchmarks`.
- Add support for sliding windows in Summaries

[11.2.0]: https://github.com/siimon/prom-client/compare/v11.1.3...v11.2.0
[11.2.0]: https://github.com/prometheus/client_js/compare/v11.1.3...v11.2.0

## [11.1.3] - 2018-09-22

Expand All @@ -406,7 +406,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
- Fixed performance by avoiding `Object.assign` on hot paths, as well as
mutating objects when appropriate.

[11.1.3]: https://github.com/siimon/prom-client/compare/v11.1.2...v11.1.3
[11.1.3]: https://github.com/prometheus/client_js/compare/v11.1.2...v11.1.3

## [11.1.2] - 2018-09-19

Expand All @@ -415,15 +415,15 @@ project adheres to [Semantic Versioning](http://semver.org/).
- Allow setting Gauge values to NaN, +Inf, and -Inf
- Fixed `histogram` scrape performance by using `acc.push` instead of `acc.concat`. Fixes #216 with #219

[11.1.2]: https://github.com/siimon/prom-client/compare/v11.1.1...v11.1.2
[11.1.2]: https://github.com/prometheus/client_js/compare/v11.1.1...v11.1.2

## [11.1.1] - 2018-06-29

### Changed

- Fixed `processOpenFileDescriptors` metric when no custom config was set

[11.1.1]: https://github.com/siimon/prom-client/compare/v11.1.0...v11.1.1
[11.1.1]: https://github.com/prometheus/client_js/compare/v11.1.0...v11.1.1

## [11.1.0] - 2018-06-29

Expand All @@ -436,7 +436,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
labelset
- Fixed `AggregatorFactory` losing the aggregator method of metrics

[11.1.0]: https://github.com/siimon/prom-client/compare/v11.0.0...v11.1.0
[11.1.0]: https://github.com/prometheus/client_js/compare/v11.0.0...v11.1.0

## [11.0.0] - 2018-03-10

Expand All @@ -447,7 +447,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
[best practices](https://prometheus.io/docs/practices/naming/#base-units)
- Dropped support for node 4

[11.0.0]: https://github.com/siimon/prom-client/compare/v10.2.3...v11.0.0
[11.0.0]: https://github.com/prometheus/client_js/compare/v10.2.3...v11.0.0

## [10.2.3] - 2018-02-28

Expand All @@ -459,7 +459,7 @@ project adheres to [Semantic Versioning](http://semver.org/).

### Added

[10.2.3]: https://github.com/siimon/prom-client/compare/v10.2.2...v10.2.3
[10.2.3]: https://github.com/prometheus/client_js/compare/v10.2.2...v10.2.3

## [10.2.2] - 2017-11-02

Expand Down Expand Up @@ -584,16 +584,16 @@ project adheres to [Semantic Versioning](http://semver.org/).
- Creating metrics with one argument per parameter - use object literals
instead.

[10.2.2]: https://github.com/siimon/prom-client/compare/v10.2.1...v10.2.2
[10.2.1]: https://github.com/siimon/prom-client/compare/v10.2.0...v10.2.1
[10.2.0]: https://github.com/siimon/prom-client/compare/v10.1.1...v10.2.0
[10.1.1]: https://github.com/siimon/prom-client/compare/v10.1.0...v10.1.1
[10.1.0]: https://github.com/siimon/prom-client/compare/v10.0.4...v10.1.0
[10.0.4]: https://github.com/siimon/prom-client/compare/v10.0.3...v10.0.4
[10.0.3]: https://github.com/siimon/prom-client/compare/v10.0.2...v10.0.3
[10.0.2]: https://github.com/siimon/prom-client/compare/v10.0.1...v10.0.2
[10.0.1]: https://github.com/siimon/prom-client/compare/v10.0.0...v10.0.1
[10.0.0]: https://github.com/siimon/prom-client/compare/v9.1.1...v10.0.0
[9.1.1]: https://github.com/siimon/prom-client/compare/v9.1.0...v9.1.1
[9.1.0]: https://github.com/siimon/prom-client/compare/v9.0.0...v9.1.0
[9.0.0]: https://github.com/siimon/prom-client/commit/1ef835f908e1a5032f228bbc754479fe7ccf5201
[10.2.2]: https://github.com/prometheus/client_js/compare/v10.2.1...v10.2.2
[10.2.1]: https://github.com/prometheus/client_js/compare/v10.2.0...v10.2.1
[10.2.0]: https://github.com/prometheus/client_js/compare/v10.1.1...v10.2.0
[10.1.1]: https://github.com/prometheus/client_js/compare/v10.1.0...v10.1.1
[10.1.0]: https://github.com/prometheus/client_js/compare/v10.0.4...v10.1.0
[10.0.4]: https://github.com/prometheus/client_js/compare/v10.0.3...v10.0.4
[10.0.3]: https://github.com/prometheus/client_js/compare/v10.0.2...v10.0.3
[10.0.2]: https://github.com/prometheus/client_js/compare/v10.0.1...v10.0.2
[10.0.1]: https://github.com/prometheus/client_js/compare/v10.0.0...v10.0.1
[10.0.0]: https://github.com/prometheus/client_js/compare/v9.1.1...v10.0.0
[9.1.1]: https://github.com/prometheus/client_js/compare/v9.1.0...v9.1.1
[9.1.0]: https://github.com/prometheus/client_js/compare/v9.0.0...v9.1.0
[9.0.0]: https://github.com/prometheus/client_js/commit/1ef835f908e1a5032f228bbc754479fe7ccf5201
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