Review Bot 4.1 Release Notes¶

Release date: April 7, 2026

Installation/Upgrade¶

Follow our installation guide for installing the Review Bot extension and worker.

To learn more, see:

Compatibility¶

Review Bot 4.1 is compatible with Review Board 5.x - 7.x and Python 3.8 - 3.13.

Fixed compatibility with setuptools version 82.

The setuptools package has removed the pkg_resources module, which was still used in the Review Bot worker. This has been fixed so that worker installations will work alongside setuptools version 82 or newer.

New Features¶

Added a new setting for tools allowing them to notify only the review request author via e-mail.
Added logging for long-running communication.

A user recently reported a situation where a networking misconfiguration was causing long communication delays between the Review Bot extension and the RabbitMQ service, which caused the entire Review Board application to seem very slow.

Communication delays of this sort will now show up as warnings in the Review Board log file if operations exceed 5 seconds, or as critical if operations exceed 15 seconds.

Tool Updates¶

A variety of the tools that Review Bot uses have changed their output format, causing either poor display of comments or (in rare cases) parse errors.

Updated cargo clippy and cargo test tools to correctly parse output from versions up to 1.94.
Updated cppcheck tool to correctly parse output from versions up to 2.20.
Updated go test and go vet tools to correctly parse output from versions up to 1.26.
Updated rubocop tool to correctly parse output from versions up to 1.85.

Contributors¶

Christian Hammond
David Trowbridge
Michelle Aubin