- update to 20.8
- bug fixes
- removed support for Python2
- removed support for Qt4 (PyQt4 and pyside)
-- added menu action for pip cache management
-- changed the dialog to allow the selection of checker categories
-- added several security related checks (ported from bandit)
-- extended the dialog to show a list of files still to be checked
-- updated pycodestyle to version 2.6.0
-- updated pyflakes to version 2.2.0
-- updated asttoken to version 2.0.4
- bug fixes
-- added a configurable URL entry color to indicate sites with certificate
issues
-- added code to ask for the title of a new bookmark folder
-- updated Pygments to 2.3.1