That release also introduced TRIM support for third-party SSDs. Developers can download OS X 10.10.5 Yosemite beta 2 via Software Update in the Mac App Store or through Apple's developer Web portal.

OS X 10.10.5 is likely to be one of the last updates to OS X Yosemite, which will soon be retired in favor of its successor, OS X 10.11 El Capitan.

Mac OS X Yosemite 10.10.5 addresses several bugs and technical glitches in the operating system, including the serious problem known as DYLD.

Apple releases OS X Yosemite 10.10.5, El Capitan 10.11.6 to patch security flaws that caused iOS attacks Jordan Novet @jordannovet September 1, 2016 5:29 PM ...

News New privilege escalation exploit discovered in OS X Yosemite, also affects just-released 10.10.5 Sam Oliver 92 Sun Aug 16 2015, 06:00 AM EDT · 1 minute read ...

Esser said the dyld flaw is present in the current 10.10.4 version of OS X, as well as a beta version of 10.10.5 he recently tested.

The first two brought bug fixes and security improvements, while OS X 10.10.3, the most significant update to Yosemite, introduced the new Photos app, Force Touch APIs, new emoji features, and more.