updated 02:00 pm EDT, Thu May 15, 2014
Includes Safari 7.0.3
Following a long beta period, Apple has released the final version of OS X 10.9.3. The update makes relatively few changes, but does improve support for 4K displays on 2013 models of the Mac Pro and 15-inch Retina MacBook Pro. It also restores the ability to sync contacts and calendars between a Mac and an iOS device using USB, instead of alternatives like iCloud.
Other inclusions are Safari 7.0.3 -- a maintenance patch -- and better reliability for VP connections using IPsec. The v10.9.3 update can be downloaded through the Mac App Store.