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Just an update: Thanks to a consulting gig I was able to get a copy of Mac OS X 10.10.5 (Yosemite) and do an upgrade. The worst part was the initial upgrade itself—1 minute left = 30 minutes left—in Apple installer time, but past that I am quite happy. Thanks for the solid advice! – JakeGould Jan 3 '16 at 6:33 OS X Yosemite Security Updates for Mac. Download Free Aug 14, 2015 Quick Answer: How To Upgrade Mac Os X 10.6.8? - OS Today

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