Apple today released OS X 10.9.5, after approximately a month of testing and two months after the release of OS X 10.9.4



From MacRumors:

The update, which is recommended for all Mavericks users, improves the reliability of VPN connections that use USB smart cards for authentication and it improves the reliability of accessing files located on an SMB server. Also included with OS X 10.9.5 is Safari 7.0.6. OS X 10.9.5 will likely be the final update to Mavericks ahead of the release of OS X Yosemite, which is expected in October. OS X Yosemite brings several improvements to the operating system, including a revamped look and several new features that improve integration with iOS.

  Apple Releases OS X 10.9.5 With Reliability Improvements,