# Changelog All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/). ## [Unreleased] ### Breaking ### Changed ### Added ## [11.5.3] - 2019-06-27 ### Changed - Parameter `compressCount` in Summaries to control compression of data in t-digest. - Compress t-digest in Summaries ## [11.5.2] - 2019-06-20 ### Changed - fix: avoid mutation bug in registry ## [11.5.1] - 2019-06-13 ### Changed - fix: guard against missing constructor ## [11.5.0] - 2019-06-04 ### Added - Added `timestamps` toggle to `collectDefaultMetrics` options - Export `validateMetricName` ## [11.4.0] - 2019-06-04 ### Added - `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. ## [11.3.0] - 2019-04-02 ### Changed - Check that cluster worker is still connected before attempting to query it for metrics. (#244) ### Added - 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) ## [11.2.1] ### Breaking ### Changed ### Added - Updated types for Summary in typescript definition file ## [11.2.0] ### Changed - Updated child dependency `merge` patch version to remove vulnerability. ### Added - Added an initial `benchmark` suite which can be run with `npm run benchmarks`. - Add support for sliding windows in Summaries ## [11.1.3] - 2018-09-22 ### Changed - Fixed performance by avoiding `Object.assign` on hot paths, as well as mutating objects when appropriate. ## [11.1.2] - 2018-09-19 ### Changed - 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 ## [11.1.1] - 2018-06-29 ### Changed - Fixed `processOpenFileDescriptors` metric when no custom config was set ## [11.1.0] - 2018-06-29 - Added ability to set a name prefix in the default metrics ### Changed - Fixed `startTimer` utility to not mutate objects passed as `startLabels` - Fixed `Counter` to validate labels parameter of `inc()` against initial labelset - Fixed `AggregatorFactory` losing the aggregator method of metrics ## [11.0.0] - 2018-03-10 ### Breaking - Fixed `gauge.setToCurrentTime()` to use seconds instead of milliseconds - This conforms to Prometheus [best practices](https://prometheus.io/docs/practices/naming/#base-units) - Dropped support for node 4 ## [10.2.3] - 2018-02-28 ### Breaking ### Changed - Fixed issue that `registry.getMetricsAsJSON()` ignores registry default labels ### Added ## [10.2.2] - 2017-11-02 ### Changed - Fixed invalid `process_virtual_memory_bytes` reported under linux ## [10.2.1] - 2017-10-27 ### Changed - Only resolve/reject `clusterMetrics` promise if no callback is provided ## [10.2.0] - 2017-10-16 ### Changed - Don't add event listeners if cluster module is not used. - Fixed issue with counters having extra records when using empty labels ### Added - Added `reset` to Counter and Gauge - Added `resetMetrics` to register to calling `reset` of all metric instances ## [10.1.1] - 2017-09-26 ### Changed - Update TypeScript definitions and JSDoc comments to match JavaScript sources - Fix lexical scope of `arguments` in cluster code ## [10.1.0] - 2017-09-04 ### Added - Support aggregating metrics across workers in a Node.js cluster. ## [10.0.4] - 2017-08-22 ### Changed - Include invalid values in the error messages ## [10.0.3] - 2017-08-07 ### Added - Added registerMetric to definitions file ### Changed - Fixed typing of DefaultMetricsCollectorConfiguration in definitions file - Don't pass timestamps through to pushgateway by default ## [10.0.2] - 2017-07-07 ### Changed - Don't poll default metrics every single tick ## [10.0.1] - 2017-07-06 ### Added - Metrics should be initialized to 0 when there are no labels ## [10.0.0] - 2017-07-04 ### Breaking - Print deprecation warning when metrics are constructed using non-objects - Print deprecation warning when `collectDefaultMetrics` is called with a number ### Added - Ability to set default labels by registry - Allow passing in `registry` as second argument to `collectDefaultMetrics` to use that instead of the default registry ### Changed - Convert code base to ES2015 code (node 4) - add engines field to package.json - Use object shorthand - Remove `util-extend` in favor of `Object.assign` - Arrow functions over binding or putting `this` in a variable - Use template strings - `prototype` -> `class` ## [9.1.1] - 2017-06-17 ### Changed - Don't set timestamps for metrics that are never updated ## [9.1.0] - 2017-06-07 ### Added - Ability to merge registries ### Changed - Correct typedefs for object constructor of metrics ## [9.0.0] - 2017-05-06 ### Added - Support for multiple registers - Support for object literals in metric constructors - Timestamp support ### Changed - Collection of default metrics is now disabled by default. Start collection by running `collectDefaultMetrics()`. ### Deprecated - Creating metrics with one argument per parameter - use object literals instead. [unreleased]: https://github.com/siimon/prom-client/compare/v10.2.2...HEAD [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