APFS looks very promising, it's hard to let Apple use me as a live beta tester.
You at least patch your system right? Being behind did Equifax no favors.
There are also numerous incidents mentioned by Google Peoject Zero, if you read through their macOS disclosures.
It’s definitely unsafe from a security standpoint to run anything other than the latest release.
Still, running something like little snitch, behind a router, along with some browser plugins can go a long way. Until Sierra, I have never had an upgrade that went smoothly, something critical I used has always broken.
Unfortunately Apple's OS updates are as bad as a zer0 day exploit in how they can knock one's setup inoperable, sometimes for many weeks or months until there's a way to fix, or revert.
Software vendors I'm using seemed to be out ahead of the High Sierra train which was encouraging.
You do backup things right? Disk cloning through Carbon Copy Cloner is super fast and restores are painless.
Apples backups were the reason I switched to Mac from windows a decade ago. Can't be beat.
I run Time Machine on one hd at office, carbon copy cloner on another hd at home, all they the USB hub.
It's not a backup if it doesn't exist in more than 1 place.
I was referring to the case where half your apps don't work and the other half benefit greatly from the new version.
Being a major release behind (and staying patched) is something I picked up during using windows for far too long.
Once you have an environment you rely on more than having the latest, it makes a case for having a personal vs working device.
Usually the way they do it: Apple Store requires apps to work with this new feature on the latest iOS, or nothing gets approved. For the IDE to access these latest features, Xcode needs to be upgraded to the latest version. For Xcode to upgrade to the latest version, your MacOS has to be the latest version. And sometimes, to upgrade to the latest MacOS version, your computer has to be a newer version.
Apple stock goes up. Apple Store employees counter your criticism about the new gimped device by pointing to the large sales orders.
You question your sanity as the Apple distortion field warps around you. "Maybe this is a good device....."
I never do major MacOS upgrades without doing a full carbon copy clone disk image to restore if things go sideways.
The number of sales orders caused by iOS developers whose hardware is too old to upgrade to the new major OS is going to be so small as to be meaningless.
Speculators gonna speculate and sales people going to say non-objective sales people things.
I tend to like these refinement updates, like Snow Leopard and Mountain Lion, but I have to say that APFS gives me pause. If Apple doesn't have enough confidence in it to deploy on anything other than SSDs, then it doesn't sound like it's fully baked.