Enfocus Software warns PitStop users to switch to MacOS 11 (Big Sur).
Enfocus is testing this operating system and has found some compatibility issues with PitStop Pro and Server. It is therefore recommended that all PitStop users do NOT upgrade to this operating system when it is released. Enfocus is currently working on an update for PitStop 2020 that will provide support for MacOS 11 Big Sur.
UPDATE: Enfocus PitStop 2020 Update 1 supports MacOS 11 (Big Sur).