Apple Releases OS X 10.10.5 With DYLD Vulnerability Patch, Bug Fixes

os_x_yosemite_round_iconApple today released OS X Yosemite 10.10.5, an under-the-hood update that introduces bug fixes, security enhancements, and performance improvements. OS X 10.10.5 is being released to the public after two developer betas and one month of testing.

The OS X 10.10.5 update can be downloaded through the Software Update mechanism in the Mac App Store.

Today's update notably includes a fix for the DYLD_PRINT_TO_FILE privilege escalation vulnerability that could allow malware to gain root access to a Mac. Earlier this month, a DYLD_PRINT_TO_FILE exploit was found to be in use in the wild, so this is an update that all Mac users running Yosemite will want to install as soon as possible.

This update:

- Improves compatibility with certain email servers when using Mail
- Fixes an issue in Photos that prevents importing videos from GoPro cameras
- Fixes an issue in QuickTime Player that prevented playback of Windows Media files.

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. Currently in testing, OS X El Capitan builds on the features introduced with Yosemite, focusing on improving performance and user experience.

Once OS X El Capitan is available for download, OS X Yosemite will see only minor maintenance updates designed to fix security flaws and other major bugs. OS X El Capitan is expected to be released to the public in the fall.

Update 10:33 AM: Fixes and improvements for Apple Music are available in a separate iTunes 12.2.2 update also available through Software Update in the Mac App Store.

Update 11:20 AM: Apple has also released Security Update 2015-006 for Mavericks and Mountain Lion users, as well as Safari 8.0.8 for Yosemite, 7.1.8 for Mavericks, and 6.2.8 for Mountain Lion.

Related Forum: OS X Yosemite

Popular Stories

iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2 and AirPods Pro 3

Thursday December 11, 2025 11:28 am PST by
Apple today released new firmware designed for the AirPods Pro 3 and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B30, up from 8B25, while the AirPods Pro 2 firmware is 8B28, up from 8B21. There's no word on what's include in the updated firmware, but the AirPods Pro 2 and AirPods Pro 3 are getting expanded support for Live Translation in the European Union in iOS...
macOS Tahoe 26 Thumb

Apple Releases macOS Tahoe 26.2 With Edge Light

Friday December 12, 2025 10:08 am PST by
Apple today released macOS Tahoe 26.2, the second major update to the macOS Tahoe operating system that came out in September. macOS Tahoe 26.2 comes five weeks after Apple released macOS Tahoe 26.1. Mac users can download the macOS Tahoe update by using the Software Update section of System Settings. macOS Tahoe 26.2 includes Edge Light, a feature that illuminates your face with soft...
AirTag 2 Mock Feature

Apple AirTag 2: Four New Features Found in iOS 26 Code

Thursday December 11, 2025 10:31 am PST by
The AirTag 2 will include a handful of new features that will improve tracking capabilities, according to a new report from Macworld. The site says that it was able to access an internal build of iOS 26, which includes references to multiple unreleased products. Here's what's supposedly coming: An improved pairing process, though no details were provided. AirTag pairing is already...
ipados 26 1 slide over

Apple Releases iPadOS 26.2 With Multitasking Improvements

Friday December 12, 2025 10:09 am PST by
Apple today released iPadOS 26.2, the second major update to the iPadOS 26 operating system released in September. iPadOS 26.2 comes a month after iPadOS 26.1. The new software can be downloaded on eligible iPads over-the-air by going to Settings > General > Software Update. iPadOS 26.2 continues with the multitasking improvements that were added with iPadOS 26.1. You can now drag and...
bug security vulnerability issue fix larry

Update Now: iOS 26.2 Fixes 20+ Security Vulnerabilities

Friday December 12, 2025 11:11 am PST by
Apple today released iOS 26.2, iPadOS 26.2, and macOS 26.2, all of which introduce new features, bug fixes, and security improvements. Apple says that the updates address over 20 vulnerabilities, including two bugs that are known to have been actively exploited. There are a pair of WebKit vulnerabilities that could allow maliciously crafted web content to execute code or cause memory...

Top Rated Comments

67952 Avatar
135 months ago
How the f*ck do you fix this new never-ending Software Update bug???? Apple's QA and software in general has taken a nose dive in reliability in the last few years.



Attachment Image
Score: 12 Votes (Like | Disagree)
tywebb13 Avatar
135 months ago
https://support.apple.com/kb/DL1832

Here you go.
Thanks for that. Here are the rest of the links:

10.10.5 combo: https://support.apple.com/kb/DL1832?viewlocale=en_US&locale=en_US

10.10.5 delta: https://support.apple.com/kb/DL1833?viewlocale=en_US&locale=en_US

mavericks security update 2015-006: https://support.apple.com/kb/DL1834?viewlocale=en_US&locale=en_US

mountain lion security update 2015-006: https://support.apple.com/kb/DL1835?viewlocale=en_US&locale=en_US

itunes 12.2.2: https://secure-appldnld.apple.com/itunes12/031-31872-20150813-B2459290-41B7-11E5-A64D-900D11BA098F/iTunes12.2.2.dmg

Safari 6.2.8 for mountain lion: http://swcdn.apple.com/content/downloads/45/36/031-28342/piu9tsargpvuaxdnlhf1s0dulnxiuxc8ee/Safari6.2.8MountainLion.pkg

Safari 7.1.8 for mavericks: http://swcdn.apple.com/content/downloads/59/33/031-28345/vywohd6l5y80md897mas9u1zy3ur7d6idc/Safari7.1.8Mavericks.pkg

There isn't a separate link for safari 8.0.8 for yosemite because it is part of the os x 10.10.5 update.

I should point out that a full installer is also available on the mac app store and if you haven't got yosemite yet it would be a good idea to get this now to make a bootable usb for 10.10.5 because soon yosemite will completely disappear from the mac app store altogether once el capitan is released.

You might not need it yet. But when mavericks disappeared when yosemite was released people complained about the lack of availability of it and resorted to getting it through torrents instead. This is not desirable.

So basically even if you don't need it yet, I'd say get yosemite the legitimate way - WHILE YOU STILL CAN!
Score: 11 Votes (Like | Disagree)
Cougarcat Avatar
135 months ago
Personally I wish they would replace dock icons with iOS ones
I hope not. It's better with a pointer interface to have icons with various shapes. Makes them easier to find at a glance. This was (at least one point in time) part of Apple's HIG, though they seem to not care about it anymore with all the circle icons.
Score: 8 Votes (Like | Disagree)
Weaselboy Avatar
135 months ago
Waiting for a combo update to download. If anyone finds it soon, please post.
https://support.apple.com/kb/DL1832

Here you go.
Score: 7 Votes (Like | Disagree)
mygoldens Avatar
135 months ago
I will take it, patches/security updates are a good thing!
Score: 5 Votes (Like | Disagree)
djang0 Avatar
135 months ago
How the f*ck do you fix this new never-ending Software Update bug???? Apple's QA and software in general has taken a nose dive in reliability in the last few years.

Score: 5 Votes (Like | Disagree)