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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1 version withdrawn
withdrawn after publishing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.
fixed_count: ability to spawn a specific number of users (as opposed to just using weights) #1964
Pass --tags and --exclude-tags to workers. (https://github.com/locustio/locust/pull/1976)
Clean up some logging messages (https://github.com/locustio/locust/pull/1973)
Ensure heartbeat_worker doesn't try to re-establish connection to workers when quit has been called (https://github.com/locustio/locust/pull/1972)
fixed_count: ability to spawn a specific number of users (as opposed to just using weights) (https://github.com/locustio/locust/pull/1964)
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Ignore empty host field in web ui (Fix running the web UI with class defined hosts)
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Change request event 'url' parameter to contain full URL (technically a breaking change, but very few users will have had time to start using this)
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* Fix crash on windows
Add --expect-workers-max-wait parameter
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Fix stat printing when using shapes #1907
Fix stat printing when using shapes #1907
Fix stat printing when using shapes (https://github.com/locustio/locust/pull/1907)
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Add start_time and url parameters to request event. #1900 Support (and test) Python 3.10 #1901 Make User.run/TaskSet.run final and raise an exception
Add start_time and url parameters to request event. #1900
Support (and test) Python 3.10 #1901
Make User.run/TaskSet.run final and raise an exception if someone marks it with @task #1895
Ensure target_user_count is set before ramping-up or down #1891/#1894
Release docker image for arm64. #1889
Add start_time and url parameters to request event. (https://github.com/locustio/locust/pull/1900)
Support (and test) Python 3.10 (https://github.com/locustio/locust/pull/1901)
Make User.run/TaskSet.run final and raise an exception if someone marks it as a task (https://github.com/locustio/locust/pull/1895)
Release docker image for arm64. (https://github.com/locustio/locust/pull/1889)
Automated change log generation is broken. Will fix this later, but until then you can look here: https://github.com/locustio/locust/compare/2.2.3...2.4.0
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Fix issue with custom arguments in config file (when not running headless) https://github.com/locustio/locust/pull/1888
Fix issue with custom arguments in config file (when not running headless) https://github.com/locustio/locust/pull/1888
Fix issue with custom arguments in config file (when not running headless) (https://github.com/locustio/locust/pull/1888)
Automated change log generation is broken. Will fix this later, but until then you can look here: https://github.com/locustio/locust/compare/2.2.2...2.2.3
Automated change log generation is broken. Will fix this later, but until then you can look here: https://github.com/locustio/locust/compare/2.2.1...2
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PR #1871 Disable setting custom parameters of None or boolean type in web UI. Fixes #1870
PR #1871 Disable setting custom parameters of None or boolean type in web UI. Fixes #1870
Automated change log generation is broken. Will fix this later, but until then you can look here: https://github.com/locustio/locust/compare/2.2.0...2.2.1
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Display locustfile and tasks ratio information on index.html
requests) (https://github.com/locustio/locust/pull/1858)Nothing published for this version
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