v3.0.0
This version is supposed to be a short-lived transitional breaking release to reserve the project name on all platforms. It also merges a big outstanding PR stalled from the past 3 years which refactor the core of the CLI to support mboxes, in addition to maildirs (hence the rename).
Because I was time-constrained I choose to compromise on quality and have it out as fast as possible. The plan is to fix all remaining issues in v4.0.0.
Python 2.x is no longer supported, but I did not properly remove it in this release. You may encounter some inconsistencies in this release.
Anyway: everything is now settled on that front since v4.0.0 has been released.