Apple pushes out 10.9.3 update to OS X Mavericks
Check the Mac App Store for a minor update to OS X which hit today. It's not a stellar update with tons of new features, but here's what Apple tells us:
Improves 4K display support on Mac Pro (Late 2013) and MacBook Pro with 15-inch Retina Display (Late 2013)
Adds the ability to sync contacts and calendars between a Mac and iOS device using a USB connection
Improves the reliability of VPN connections using IPsec
Resolves an issue that prevented Font Book from installing PostScript Type 1 fonts
Improves reliability of copying, editing and inspecting permissions of files on an SMB file server
Improves reliability of network home directories
Improves stability when installing configuration profiles
Improves login speed for users in Active Directory groups
Includes Safari 7.0.3
As always, after downloading the 10.9.3 update your Mac will require a reboot to complete installation. The update went smoothly for me, and I'm not seeing reports of troublesome issues so far. Apple also did a minor update to iTunes today, which is also available from the Mac App Store.