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PyPI · #1189 most downloaded on PyPI
Developer-friendly load testing framework
Last release today
04 Oct 2026
Ships on a steady schedule
a new release about every 2 weeks
Nearly every release is documented
notes for 60 of the last 60 stable releases
1 version withdrawn
withdrawn after publishing
6 years old
1050 releases · first in 2020
One column per quarter.
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update docker actions to get rid of node12 deprecation warnings by @mgor in https://github.com/locustio/locust/pull/2524
Full Changelog: https://github.com/locustio/locust/compare/2.20.0...2.20.1
run_single_user improvements https://github.com/locustio/locust/pull/2519
Support IPv6 for zmq connection between master and worker https://github.com/locustio/locust/pull/2521
Modern UI: Update Vite to 4.5.1 https://github.com/locustio/locust/pull/2530
Other tiny fixes
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Unable to modify custom parameters from the modern UI by @andrewbaldwin44 in https://github.com/locustio/locust/pull/2491
Full Changelog: https://github.com/locustio/locust/compare/2.19.1...2.20.0
Add event.measure context manager for simpler firing of request event (experimental) https://github.com/locustio/locust/pull/2511
Various improvements to modern UI https://github.com/locustio/locust/pull/2491
Various tiny fixes
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Create any directories as part of the CSV Prefix by @sillydan1 in https://github.com/locustio/locust/pull/2481
Full Changelog: https://github.com/locustio/locust/compare/2.19.0...2.19.1
Create any directories as part of the CSV Prefix https://github.com/locustio/locust/pull/2481
Dont suppress StopUser or GreenletExit in on_stop https://github.com/locustio/locust/pull/2486
FastHttpUser: Detect response text encoding when no information is present in headers https://github.com/locustio/locust/pull/2485
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Add --processes parameter to automatically fork worker processes by @cyberw in https://github.com/locustio/locust/pull/2472
Full Changelog: https://github.com/locustio/locust/compare/2.18.4...2.19.0
Add --processes parameter to automatically fork subprocesses for workers https://github.com/locustio/locust/pull/2472
Automatically shut down workers if master goes missing for too long https://github.com/locustio/locust/pull/2474
Update minimum version of various dependencies https://github.com/locustio/locust/pull/2476
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Log deprecation warning in python 3.8 by @cyberw in https://github.com/locustio/locust/pull/2473
tick() by @wiatrak2 in https://github.com/locustio/locust/pull/2465Full Changelog: https://github.com/locustio/locust/compare/2.18.3...2.18.4
Various fixes to Modern UI
Ensure to wait a second before next call to LoadTestShape's tick() https://github.com/locustio/locust/pull/2465
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Modern UI: Add sorting to columns on statistics page and downloaded report by @andrewbaldwin44 in https://github.com/locustio/locust/pull/2453
Full Changelog: https://github.com/locustio/locust/compare/2.18.2...2.18.3
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Fix docs: modern UI developing guide by @zifter in https://github.com/locustio/locust/pull/2446
Full Changelog: https://github.com/locustio/locust/compare/2.18.1...2.18.2
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Modern UI shows wrong (old) hostname when setting hostname in start dialog by @andrewbaldwin44 in https://github.com/locustio/locust/pull/2436
Full Changelog: https://github.com/locustio/locust/compare/2.18.0...2.18.1
Add Log Viewer to Modern UI https://github.com/locustio/locust/pull/2440
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