I’ll install OS X 10.10 (Yosemite) when it’s released, but it would be handy to know what works and doesn’t beforehand. To test it out safely I downloaded the OS X 10.10 beta and installed it on an external drive. I allowed the installation process to migrate applications, settings and documents from the main drive, so I have the same set-up as before, but an upgraded OS. I don’t have time to test everything, but here’s what I found so far. (Please note this is an idiosyncratic list, as it reflects my illustration, web development and 3D work.)
A plug for VirtualHostX which helps set up virtual hosts on Mac OS X.
Issues when installing the new Adobe CS5 suite on Mac OS X, plus a manual solution of sorts.