You can view the 3.7.3 milestone on GitHub for more details.
Fix imports of typing in python 3.5.0 / 3.5.1 (See also #1199, #674)
typing
Fix flake8 --statistics (See also #920, #675)
flake8 --statistics
Gracefully ignore flake8-per-file-ignores plugin if installed (See also #1201, #671)
flake8-per-file-ignores
Improve error message for malformed per-file-ignores (See also #921, #288)
per-file-ignores