I'm a photographer upgrading from Yosemite to El Capitan in order to run Capture One 10, but last I heard there is a bug in 10.11.6 that shows TIFF files as black and issues with IIQ files in Capture One. Does anyone know if this issue has been resolved somehow? Alternatively, does anyone know where I can get a 10.11.5 installer file? Only a combo update is available directly from Apple. I'm not interested in upgrading to Sierra quite yet.