Apple seeds new OS X 10.9.4 beta to AppleSeed testers
Apple has seeded a new beta build of OS X 10.9.4 to its AppleSeed testers. The seed was posted for developers yesterday. AppleSeed testers who have their computers registered with the program can go into the Updates section of the Mac App Store to download the new build.
Developers can of course download the new build from Apple's Developer Website right now.