DON'T DO IT! I have updated my iMac 27 "Retina to High Sierra, and none of Adobe's programs work properly for me now. Lightroom has trouble loading and Premiere Pro CC 2018 is almost impossible to open. When the program finally opens, there are issues with the audio. The program can not find a valid audio source. In addition, Premiere Pro crashes 9 out of 10 times when importing files or colorgrading. So again, DO NOT update to High Sierra!
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