I was a bit startled this afternoon when I returned from lunch and my menu bar was hiding.
Naturally, I assumed the beta version of El Cap I’m running was to blame, so after toggling a few settings (full screen, etc), I restarted. Sadly, my menu bar was still hiding. And starting to annoy me.
Luckily, annoyance turned to something better when I realized that I hadn’t found a bug, I’d found a new feature! Turns out you can toggle your menu bar to automatically hide from System Preferences.
Right there under ‘dark mode’ you can check the box yourself.
Enjoy!