Witch 4.5 is out, with a couple of minor fixes. We resolved a problem that caused an incorrect free updates expiration date to appear on the license (in the About tab), and we worked around an issue caused by the new too-tall menu bars on the 14″ and 16″ notched MacBook Pros. You could read the release notes, but that’s about all you’ll find there.
As usual, you can update via the in-app updater, or by installing a fresh copy of the System Preferences panel from the Witch web page.