Apple on Thursday released the finished version of OS X 10.10.5, a maintenance update for Yosemite that mostly concentrates on bugfixes and security issues, including the DYLD_PRINT_TO_FILE privilege escalation exploit.
The update also solves Mail compatibility problems with some email servers, and quashes a Photos bug that prevented importing GoPro videos. QuickTime Player should once again be able to play Windows Media files. Across the OS, Apple has made various performance improvements.
The DYLD_PRINT_TO_FILE vulnerability allowed an installer to gain root access without entering a password, from which point it could insert further software such as adware.
OS X 10.10.5 can be downloaded via the Updates tab at the Mac App Store.
The release will likely be the last major update for Yosemite, as OS X 10.11 -- El Capitan -- is due to ship sometime this fall.