A couple of years ago, to test out some software I was helping develop, I installed the MacOS and iOS developer betas on my iPhone and trusty MacBook. And, in short, it was an unmitigated disaster. Features suddenly disappeared (apparently still in development), both devices unexpectedly rebooted repeatedly, and my productivity ground to a near halt. Eventually, I ended up rolling back both to stable, released software, and all was well, save the week or two of lost time.

In the time since, I completely forgot about that episode. Until this past weekend, when I once again, with software to test-drive, installed the developer betas of iOS 11 and MacOS High Sierra. And, once again, both of my daily-use devices are a total mess.

Given their fairly late-beta stage, this time I may just try to limp along through subsequent releases. But, if nothing else, it’s a good reminder: apparently, I just never learn.