Apple has seeded a new build of the OS X Lion 10.7.3 to developers. Build 11D24 of the 10.7.3 beta is now available for download in the Dev Center. The first build of the upcoming update for Lion was seeded to developers back on November 15th.
While we doubt to see any huge changes in this update, this update is asking developers to focus on debugging other areas of the OS including Sarai and Spotlight. It is unknown when this update will be released to the public, but the last release, 10.7.2 was released back in October.
Update: It looks like Apple has pulled the build from the Dev Center for some reason, we will keep you posted.