Adobe has tested Photoshop CC 2017 and Lightroom CC 2015.7/6.7 running on macOS 10.12 (Sierra).
For details on known issues and workarounds, see:
- Known issues – Running Photoshop CC on macOS 10.12 Sierra
- Known issues – Running Lightroom CC on macOS 10.12 Sierra
Adobe strongly recommends that customers update Photoshop 2017 and Lightroom to 2015.7/6.7 prior to updating to macOS 10.12 (Sierra).
Older versions of Photoshop and Lightroom were not designed, nor extensively tested to run on macOS Sierra. We strongly recommend that customers do their own testing on a non-production partition to ensure that new operating systems work with their current hardware and drivers (printing, etc). You may wish to remain on an older version of the OS that is compatible with prior versions of our software.
If you do encounter issues that are not already documented, feel free to report them on our feedback site.