Apple issues fourth beta of Mac OS X 10.6.7 with no known issues
Apple released build 10J855, available either as a 1GB combo update or 412.6MB delta update, on Thursday. According to people familiar with documentation for the update, there are no known issues with the build.
Developers have been encouraged to focus on the Mac App Store, Airport, Bonjour, SMB file sharing and Graphics Drivers, said those familiar with the beta.
It is unclear what new features, if any, will be included in Mac OS X 10.6.7 when it is released to the public, but the launch of the Mac App Store last month is expected to be the last major feature added to Mac OS Snow Leopard.