Following the release of iOS 8.4.1, Apple has also released OS X 10.10.5 to the public. This update only went through three betas before release. It comes a month after the last release. 10.10.5 includes a fix for the DYLD_PRINT_TO_FILE vulnerability. We also see some other bug fixes, such as compatibility fixes with some email servers, an issue that prevented importing videos from GoPro cameras to Photos, and an issue that prevented QuickTime from playing Windows Media files.
This update is available from the Mac App Store > Updates > Software update > OS X 10.10.5.