Sep 27 2017
MLA on macOS High Sierra
Initial testing has found that both the Canon and Image Capture camera control do not work on the recently released macOS High Sierra (10.13). It is recommended that for the time being, if you need to use camera control within MLA that you do not upgrade to macOS High Sierra. More information to follow once it has been thoroughly investigated.
Dec 10 2017
Public beta of MLA v1.3.1 for macOS
Due to camera control issues with MLA in macOS High Sierra (10.13), a public beta with a fix is now available from the Downloads page. The existing camera control setup is still available, but in this beta, a new camera control dialog is also available that will only work with cameras supported by the Image Capture framework on macOS High Sierra. It has been tested with Nikon DS5100 and Canon EOS 5D Mk2 DSLR cameras. Most Nikon DSLR cameras should work if they had before macOS High Sierra. Some Canon DSLR cameras will also work with the Image Capture framework.
As it is a beta version, thoroughly test your setup before relying on it in a time critical situation. Also ensure you have adequate backups of the show documents you are working on.
Here is also a link to download the macOS installer.