Apple today seeded build 12D76 of OS X Mountain Lion to developers, marking the thirteenth beta iteration of the newest version of Mountain Lion. 10.8.3 was first seeded to developers in November of 2012.
Build 12D76 comes less than a week after build 12D74 and features no listed changes. Registered developers can download the update on Apple’s Developer Page.
Update: We’ve heard that Apple has seeded this version of OS X 10.8.3 to employees, suggesting that it is the final version of the software and is likely to be released to the public in the very near future.