So glad I checked this forum before hitting install today. LOL
Non-High Sierra to remain on my MBP for now I suppose.
From (my) user's perspective, that's the recommended way for any mission-critical software during major OS upgrades (even reiterated by Camerabits on and on in the forums). Did not use to be that much, but with OS companies adopting the "user is our beta (sometimes even alpha) tester" model recently (well, not that recently, for those who remember Windows ME, heh), it's even more important. It is well suggested that users wait a while before the OS reaches at least the point number release before upgrading, for any mission-critical use. That's why Windows LTSB and Ubuntu LTS editions exist (Long Term Service Branch). Even though the betas of High Sierra were coming out during the whole of summer, you can't count on betas to uncover all the possible bugs, especially with their frequent changes and last minute additions (several developer betas of iOS, for example, added features to later remove them, and where is the Apple promised ZFS support, ha?). With High Sierra bringing a lot of not well documented changes (consider AFPS, the "revolutionary" new filesystem for SSDs, which is not much documented at all, but is still being forced onto all users of Apple notebooks with SSD, without any choice - although it might be much better than HPFS+, which is generally somewhat outdated - no meaningful developer documentation makes that pretty hard to debug for software vendors).
All the worse for us the users, though, since generaly new OSes often bring fixes to software vulnerabilities that old OSes do not get (except the really big ones). I am still waiting for any word from Apple (or Google, Android, for that matter) if and when at least the penultimate versions of their OSes get a fix for the latest (perhaps the most severe since the WEP WiFi vulnerability that allowed any script kiddie to hijack your network) WPA2 WiFi vulnerability (KRACK), for example. If only iOS 11 and HighSierra get it, that's gonna be a big disappointment (since a lot of still used iPhones, iPads and Macbooks can't get upgraded to HighSierra due to HW requirements).
I still upgrade my non mission critial HW to the latest OS possible, sometimes even beta, but I am prepared for the consequences of things breaking down - the workhorse HW (Macbook and iPad) are still perfectly fine running penultimate version of their respective OS until any bugs get ironed out (even if I have to resolve to stop using any WiFi if an point upgrade to Sierra and iOS 10 doesn't fix the KRACK vulnerability...)
To be clear, Camerabits did a great job of upgrading PM day over day to fix the issue with Ingest only locked files and other issues in High Sierra, but still I would way a while before adopting it for my main workflow machine unless absolutely neccessary
