v0.12.0 (2026-05-31)

• Added:
  • MeasureOptions.warmups, a number of times to run the function before measuring its performance.

v0.11.0 (2025-05-08)

• Added:
  • In measure(), the measured function now has access to the return value of beforeEach(), and afterEach() now has access to the return values of beforeEach() and the measured function. (Contributed by berndfuhrmann)

v0.10.0 (2023-12-04)

• Changed:

  • A few improvements were made to avoid the need for Node polyfills in the browser:

    • Replaced browser-process-hrtime with browser-hrtime
    • Replaced events with eventemitter3
    • Removed reporter re-exports from root module (because Jest reporter requires fs)

    (Contributed by haven2world)

v0.9.0 (2023-02-19)

• Added:
  • A totalDuration field in the Measurement class and related output in the reporting. This is mainly useful when serial is false, so you can see the total real time spent. (Contributed by stephenh)

v0.8.0 (2022-05-12)

• Added:
  • Support for an extensions option in each reporter. Currently, this allows printing extra reports after the main one.

v0.7.0 (2021-10-08)

• Added:
  • Benchmark.measurements getter for a list of Measurement from the raw Benchmark.data.
  • Benchmark.find() and Criteria to determine the fastest/slowest measurement.
  • Measurement.description field, which is used by Benchmark.measurements and Benchmark.find() so that each measurement retains its context.
• Fixed:
  • Updated mathjs dependency to resolve a security vulnerability. (Contributed by buge)

v0.6.0 (2021-03-01)

• Added keepStateAtStart option for the Jest reporter. (Contributed by thomaschaplin)

v0.5.0 (2021-02-11)

• Added printReportAtEnd reporter option. (Contributed by thomaschaplin)
• Fixed an error in the Jest reporter when no Kelonio tests were executed. (Contributed by thomaschaplin)

v0.4.0 (2021-02-05)

• Added keepStateAtEnd option for the Jest reporter. (Contributed by thomaschaplin and electblake)
• Added marginOfErrorUnder and standardDeviationUnder measurement options. (Contributed by thomaschaplin)

v0.3.0 (2019-11-22)

• Added a reporter for Karma and a corresponding example project.
• Adjusted Kelonio so that it can work in the browser (at least in conjunction with something like Browserify).
• Added kelonio/out/plugin/jestReporterSetup.js as an alternative to writing your own jest.setup.js to call JestReporter.initializeKelonio().
• Added Benchmark.events, an event emitter.
• Added Benchmark.incorporate() for reporters to add data more easily in response to events.
• Moved the compiled reporters from kelonio/out/*Reporter.js to kelonio/out/plugin/*Reporter.js. This allows more easily accommodating export requirements for various frameworks, while still being able to export the classes normally from Kelonio's entry point.
• Removed data serialization and baseDescription from Benchmark since that can now be handled directly in reporters via the new emitter.