The new update is still broken.
Still can’t use Divvy even after the latest fix, though it may be an Apple bug. System Preferences > Security & Privacy > Accessibility refuses to remember that I enabled Divvy. I unlock the preferences, added Divvy, made sure the box next to Divvy is checked, lock the box. When I try to launch Divvy, it tells me I need to enable Divvy in Accessibility. When I go back to Accessibility, Divvy is unchecked!
neandrothal about Divvy - Window Manager