The developer preview of OS X Yosemite is already seeing rapid adoption numbers, and it isn’t even officially available yet.
According to new research, Yosemite accounted for 0.2% of OS X ad impressions in North America between the dates of June 2nd and July 2nd. That’s nearly four times the number of Macs running the developer preview of OS X Mavericks this time last year.
Why the big spike in usage? The answer is actually simple.