Today we released Butler 4.4.8 and Witch 4.6.1. Both are minor updates to fix issues that cropped up with the release of macOS Sonoma. You can either check for updates from within the app, or just download a fresh copy of the full app from the above-linked pages (you won’t lose your settings if you do this).
Very important note: Due to changes in Xcode, the minimum macOS version required to run the updated apps is macOS 10.13 (High Sierra). If you need a version of our apps for an older version of macOS, you can find it on our Museum page.