Today Apple seeded a new build of OS X 10.6.3, build 10D548. The last seed, build number 10D538, was just released on January 22, 2010.
According to reports, today’s build provides a number of enhancements for QuickTime X, 64-bit, OpenGL, and Logic.
The first 10.6.3 build was seeded in early January and the builds seem to be getting released closer and closer together. This may be an indicator of a soon to be released OS X 10.6.3.
The Mac OS X 10.6.2 update was officially released on November 9, 2009. The first build of 10.6.3 was issued on January 6, 2010 and the second build on January 22, 2010.
Mac OS X 10.6.3 will mark the third main revision to the latest Apple operating system, Snow Leopard.