Apple's pattern of seeding new builds of Mac OS X 10.5.7 to developers each weekend continues, with Build 9J39 making its way out this weekend. World of Apple publishes the seed notes, which reveal only five documented changes since the previous seed.
This build in partcular fixes issues Mail signatures, System Profiler having problems with DisplayPort adapters and several other issues.
As with previous builds the inability to install Safari 4 Beta is the only remaining issue.
Apple has also added Safari to the list of "general focus areas" upon which developers are asked to concentrate their testing.