This is an update on my post concerning the Emacs GUI not working on the macOS Majave update. There’s lots of useful information in the comments to that post so you should read those if you’re a Mac Emacs user thinking about upgrading to Mojave. Things are moving fast now. I wrote this post yesterday and I’ve had to rewrite most of it because things have changed so quickly.
Alan Third, who’s been working on the patches to fix this, reports that he’s pushed the patches to the Emacs-26 branch. Davide Restivo says that these patches are now on master as well, and I’ve verified that they have indeed been merged.
Everyone I’ve heard from who is getting their Emacs from distributions like Brew say that they haven’t had any problems (see the comments to the original post) so that’s another avenue if you need or want to upgrade now.
It appears that it’s probably safe to upgrade now but I’ll probably wait a few more days just to see what happens. There may even be an official release, although I haven’t heard anyone who actually knows what’s going on say so. I’ll probably write another update when I upgrade. I compile directly from source so if that works, everything else should too.