Using it on a mid-2010 MacBook Pro, for about a week. OS X itself is stable.
However, WiFi with unreliable internet connection (like tethering over a phone) is very flaky – the WiFi connection itself keeps dropping.
Safari has trouble with some video streaming sites – YouTube at 1080p, Netflix. This can be because of my older hardware, but never had any issues with Mavericks. Also WebGL does not seem very performant. Chrome does all of this perfectly fine, though.
If you use virtualisation with VMWare Fusion, note you need 6.0.4 for it to work under Yosemite. 6.0.3 will not run.
The new dark mode menu bar and dock are nice, but there are some rendering issues. It seems 3rd party menu bar icons are also not compatible yet, so most will be invisible or broken in dark mode.
However, WiFi with unreliable internet connection (like tethering over a phone) is very flaky – the WiFi connection itself keeps dropping.
Safari has trouble with some video streaming sites – YouTube at 1080p, Netflix. This can be because of my older hardware, but never had any issues with Mavericks. Also WebGL does not seem very performant. Chrome does all of this perfectly fine, though.
If you use virtualisation with VMWare Fusion, note you need 6.0.4 for it to work under Yosemite. 6.0.3 will not run.
The new dark mode menu bar and dock are nice, but there are some rendering issues. It seems 3rd party menu bar icons are also not compatible yet, so most will be invisible or broken in dark mode.