4.0.0 -- 2021-10-10

You can view the 4.0.0 milestone on GitHub for more details.

Backwards Incompatible Changes

Remove --install-hook vcs integration (See also :issue:`1008`).
Remove setuptools command (See also :issue:`1009`).
Migrate from GitLab to GitHub (See also :pull:`1305`).
Due to constant confusion by users, user-level |Flake8| configuration files are no longer supported. Files will not be searched for in the user's home directory (e.g., ~/.flake8) nor in the XDG config directory (e.g., ~/.config/flake8). (See also :pull:`1404`).

New Dependency Information

pycodestyle has been updated to >= 2.8.0, < 2.9.0 (See also :pull:`1406`).
Pyflakes has been updated to >= 2.4.0, < 2.5.0 (See also :pull:`1406`).
flake8 requires python >= 3.6 (See also :issue:`1010`).

Features

Add --extend-select option (See also :pull:`1312` :issue:`1061`).
Automatically create directories for output files (See also :pull:`1329`).

Bugs Fixed

ast parse before tokenizing to improve SyntaxError errors (See also :pull:`1320` :issue:`740`).
Fix warning in --indent-size argparse help (See also :pull:`1367`).
Fix handling SyntaxError in python 3.10+ (See also :pull:`1374` :issue:`1372`).
Fix writing non-cp1252-encodable when output is piped on windows (See also :pull:`1382` :issue:`1381`).