According to AppleInsider Apple has seeded another beta build of Mac OS X 10.6.7 to developers for testing. Those of you who downloaded the previous build will know that Build 10J855 comes just over a week after the previous beta release. This is the fourth build of 10.6.7 to be released within the last four weeks.
Apple is requesting that developers continue to test AirPort, SMB file sharing, Bonjour, graphics drivers and the Mac App Store application. No known issues are reported with this build. The combo build weighs in at 1 GB and 412.6 MB for the delta build.