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Running great on all 4 of my machines. No noticeable performance issues.
2016 tbMBP 15" 2.7 i7/16gb/512 SSD
2014 Mac mini 3.0 i7/16gb/1tb SSD (running as a Server)
2013 21.5" iMac 2.9 i7/16gb/512 SSD
2011 27" iMac 3.4 i7/32gb/1tb
 
I came back to 10.13.3 and feel the system UI more fluid and responsive than on 10.13.4, at least on my old 13" 2010 MBP. I'll upgrade it again and check if it's just my imagination or actually 10.13.4 is a bit less snappy UI wise
 
With 10.13.4 I finally made the jump from Sierra. So far everything seems to run fine except I was not able to get Photos to open up my Photos Library after I transferred that over. It would open, say it's repairing something, finish, but when I go to open up the App again, it would say that something was corrupted and quit the app. Anyone else have this issue?
 
Mac still ignores my quest to stop obnoxious notifications...runs as slow as my Powerbook 150

I am just not seeing any improvement.
It runs as great as 10.12.4 did at the time of its release and as great as 10.14.4 will run in a year from now.
Full of new and old bugs but nothing show stopping...
 
I was still having Finder bugs (not seeing files, etc.) as well as sluggishness. Restored back to El Capitan and it's been smooth since.
 
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Perfectly fine on my 2017 iMac. Probably the most stable release I've used since OS X Mavericks.
 
Not the most stable on my iMac Pro base model.

* Had a sleep/wake issue that required a forced powerdown
* Was using the machine today in the photos app and it decided to jump to sleep. On sleep wake, it booted from POST.
 
If I update my Macbook Air (which has an SSD) and I plug in external hard drives, will those drives automatically convert to APFS or stay they way they are? I use an older computer that is on El Capitan so I want to be able to transfer files and read files on both computers.
 
If I update my Macbook Air (which has an SSD) and I plug in external hard drives, will those drives automatically convert to APFS or stay they way they are? I use an older computer that is on El Capitan so I want to be able to transfer files and read files on both computers.

The external drives should stay the way they are, especially if the are spinners. They do not automatically convert.
 
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Running super smooth and extremely hot in the same time compared to previous update.
My MBP has constantly fans on even when I watch something on Vimeo.
Also I noticed this happens also when I launch apps or when the system boots.

I do hope they address this in the next update because it does affect the battery performance a bit.
 
Runs great on my four machines. In fact, it runs cooler on all of them.
I was getting kernel panics fairly often on my iMac using earlier versions of High Sierra but that seems to have stopped with 10.13.4.
 
The eternal drives should stay the way they are, especially if the are spinners. They do not automatically convert.
Yes, they are all non SSDs. This is good news. I might actually update my Air 2015 now as it seems High Sierra is finally stable.
 
I recommend doing a clean install when upgrading to High Sierra.

because? i have been updating my macs since 10,2, and have only once done a clean install (to resolve a crisis). there's certainly no harm in it, but what makes it essential? (just curious).
 
Maybe not essential, but advised. Many people in the FCP X community had problems with HS at first, except the ones who waited a version or two and did clean installs. I waited until 10.13.3, did a clean install on a new SSD and tested until I was satisfied that everything worked, then cloned that over to the drive on my late 2013 rMBP.
 
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