It seems there are different "versions" of Yosemite, based on the hardware. For example, I have a late 2013 Retina MBP and I wanted to build a bootable external drive for emergencies and to do repairs ...
Reader Richard Spitzer is concerned about using a third-party SSD drive with his Mac running Yosemite. He writes: I just read an article that Apple is disabling the TRIM function for third-party SSDs ...
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