This is huge news that is all over the internet, it seems that Apple with OS X Yosemite has removed support for third party SSD in OS X 10.10 Yosemite. If you are using it as a boot drive with TRIM enabled (which cleans up garbage on an SSD) it will not boot of of it. This is due to a security update called KEXT SIGNING. It is possible to disable KEXT SIGNING, but if you do it does it across the board and not just for TRIM and will leave your system insecure.
Now this doesn’t affect may except power users, and neither does it affect SSD’s from Other World Computing, which do not need TRIM to work correctly.
I wonder what this means for Hackintosh’s? Probably means turning off KEXT SIGNING.
I have always waned to upgrade my old MacPro to SSD to speed it up, but just couldn’t afford it. I was thinking a Sonnet Tech Temp SSD Pro Plus 6 Gb/s Host, and one 6 GB 480gb Mercury Extreme Pro 480 GB, but that would be around $700, but would leave room for a second SSD. It would be a pain to move everything from my personal drive to a second drive, but I think not only would the SSD speed things up, but it would be great to start with a fresh system again, as my system has some serious issues that a fresh install would likely fix.
Still not something that is going to happen any time soon.