After a beta period spanning several weeks, Apple today released the final version of OS X 10.8.4. The update, which can be accessed via the Mac App Store, includes several notable bug fixes including improvements to both FaceTime and iMessage. - Compatibility improvements when connecting to certain enterprise Wi-Fi networks - Microsoft Exchange compatibility improvements in Calendar - A fix for an issue that prevented FaceTime calls to non-U.S. phone numbers - A fix for an issue that may prevent scheduled sleep after using Boot Camp - Improves VoiceOver compatibility with text in PDF documents - Includes Safari 6.0.5, which improves stability for some websites with chat features and games - A fix for an issue that may cause iMessages to display out of order in Messages - Resolve