Also, the Preview app renders PDFs completely differently on non-retina screens now. The text is way lighter and blurrier than on all previous releases, which is unacceptable to me (I have huge collection of documents and books in PDF format that I read and search through all the time). Spotlight is now limited to smaller window to display its results, so you must scroll through them, which is also a usability regression.
If they ever create actual dark mode where the window titles are also dark (so the entire OS is like iPhoto or iMovies) then I will consider upgrading (I was also happy with the default UI in all previous releases by the way). But the way the OS looks now is just hideously ugly to me. I hate the all white everything, and I hate the inconsistency of "dark" theme if it can be called that, where menu bar and dock and folder grid views are dark but everything else is pale gray/white. Also the dock looks 2D but if you have dock magnification the icons pop out of the dock making it temporarily look like its 3D. Really silly.
I'm taken aback by the direction Apple is taking and regression in refinement and taste. I always wondered how long will it take for them to go from what they were to just another mediocre, faceless corporate software development company after Jobs. Apparently, not that long.
I'm actually looking forward to a more refined version of this in OSX 10.11.
That said, everything seems no faster nor slower, and battery life seems to be the same.
The improvements I do like is the About Mac dialog is a lot more useful than it was, Spotlight is a lot better than it was (I use Spotlight as an app launcher for anything I don't keep pinned to the dock), and the font rendering engine seems to improved (and the change in UI fonts really shows that off; other than that, thin fonts stay thin instead of suffering from the usual OSX fatness).
The dark menu bar/dock theme is a neat idea, but I don't really care for the execution. I'd rather it switch back and forth depending on the background I have (and I have backgrounds on rotation).
I use Chrome, iTerm2, Homebrew, Skype, Office365, Evernote, Todoist, and not much else, and everything seems to be working fine.
I still don't like the multi-monitor experience on OSX. I want "Displays have separate Spaces" off, but not have full screen apps take up all monitors, especially when they can't use them.
My work computer was a different story. MATLAB had lots of issues, and I ended up having to upgrade and watch youtube videos of workarounds to get it running.
Has anyone else had serious compatibility issues?
