Apple has just seeded a new pre-release version of OS X Lion 10.7.4 to developers. The update comes about two weeks after the previous build, and has a build number of 11E46. This is the second 10.7.4 build to list no known issues.
The update is available now through the Apple Developer Portal, and developers are asked to focus on the App Store, Graphics, Mail, QuickTime, Screen Sharing, and Time Machine.