Capture One 8.3.4 Released - Fixes OS X El Capitan Issues
I didn't get to cover this at the time, but there were some issues with Capture One and El Capitan when it was released. Apparently the issue was to do with the Open CL support and it caused crashing. there was a work around which would temporarily disable Open CL support, but Phase One has now released an update which supposedly fixes the issue. If you had been holding off on updating to El Capitan because of this, then it's good to know that there is now an updated version which addresses the bug. You can get the updated version by using the "Check for Updates..." function in the Capture One menu.