As promised Apple’s OS X 10.10.5 Update includes a patch for the heavily hyped yet difficult to exploit DYLD vulnerability. Additionally, Apple’s backed in fixes for Mail, Photos and QuickTime Player fixes and tweaks.
As is the wont, Apple states that “OS X Yosemite 10.10.5 update improves the stability, compatibility, and security of your Mac, and is recommended for all users.”
• OS X 10.10.5 (download the combo)
— Improves compatibility with certain email servers when using Mail
— Fixes an issue in Photos that prevented importing videos from GoPro cameras
— Fixes an issue in QuickTime Player that prevented playback of Windows Media files
— In addition to a fix for the DYLD issue, Security content includes a patch for malicious application may be able change the password of a local user, etc
A quick aside — it has months if not years since I recall running into a Windows Media file of any type. Regardless, whatever problems I haven’t been experiencing are fixed.
The most consistent message users that have installed OS X 10.10.5 Update are giving is that Safari feels snappier. There are reports of problems — overspun fans, sluggishness1 — but a consistent thread doesn’t seem to run through them.
See also the iOS 8.4.1 and iTunes 12.2.2 updates.