Apple has continued its longer-than-usual development cycle for Mountain Lion v10.8.3
with a ninth beta release today to developers. The new build, 12D61, comes just six days after the previous one. No new changes have been made to the release notes, nor are any known issues listed. Testers are asked to focus on the same areas as with the previous few betas: Safari, Game Center, AirPlay, AirPort, and graphics drivers. As with one of the previous betas, Apple says the new build features further enhancements to Wi-Fi.