Prepared to update to Sierra for Logic but from where?
I have decided to update to Logic 10.4 on my travelling laptop (Macbook Air) I am on El Capitan, but how do I update to Sierra!? I don't have the option in the app Store, just High Sierra, which isn't compatible with various other software I have.
MacBook Pro (Retina, 15-inch, Mid 2015), OS X El Capitan (10.11.3)
