This week, Apple seeded two new OS X betas despite its Dev Center outage that seems to have affected only iOS development so far.
Developers looking to grab the latest Mac betas can now safely navigate to the Mac Dev Center and log in with their credentials to grab the goods.
OS X 10.9 Mavericks DP4 can be obtained in the form of a code which developers must then redeem in the Mac App Store. For those already testing Mavericks DP3, the latest development preview is just a click away in the Mac App Store’s Software Update tab.
As for OS X 10.8.5 build 12F26, developers can grab it straight from the Mac Dev Center as a delta or combo update. The beta asks testers to focus their coding efforts on WiFi, Graphics, Wake from Sleep, PDF viewing and accessibility, as well as Mobile Device Management.