Today Apple seeded the third golden master of OS X Yosemite to registered developers. The update is available in the Mac App Store for those already on the Yosemite GM and through the Dev Center.
It’s been only two days since the second Yosemite GM, which is curious given that Apple has typically saved the GM label for OS versions that are ready for public release. That wasn’t the case for last year’s Mavericks release, however, as it also underwent multiple GM updates.
Apple is expected to announce the public availability of Yosemite at next week’s media event, and these GM updates indicate that the company has needed to make last minute changes to the OS.