Apple Releases OS X 10.9.3 With Enhanced Support for 4K Displays, Syncing Improvements - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Releases OS X 10.9.3 With Enhanced Support for 4K Displays, Syncing Improvements

Apple today released OS X 10.9.3, after two months of developer testing. The last 10.9.3 developer beta, build 13D61, was released just over a week ago.

The update, which is recommended for all Mavericks users, improves 4K display support on the late 2013 Mac Pro and 15-inch MacBook Pro with Retina display. According to the release notes, it also re-adds the ability to sync contacts and calendars between Macs and iOS devices using a USB connection and it improves the reliability of VPN connections using IPSec.

Today's update also includes Safari 7.0.3, and Apple has released iTunes 11.2 as well.

mavericks

The OS X Mavericks 10.9.3 Update is recommended for all Mavericks users. It improves the stability, compatibility, and security of your Mac.
This update:

- Improves 4K display support on Mac Pro (Late 2013) and MacBook Pro with 15-inch Retina Display (Late 2013)
- Adds the ability to sync contacts and calendars between a Mac and iOS device using a USB connection
- Improves the reliability of VPN connections using IPsec
- Includes Safari 7.0.3

For detailed information about this update, please visit: http://support.apple.com/kb/HT6228
For detailed information about the security content of this update, please visit: http://support.apple.com/kb/HT1222

First outlined after the initial 10.9.3 beta, the improved 4K support enables HiDPI Retina scaling on 4K displays for the 2013 Mac Pro and Retina MacBook Pro with DisplayPort 1.2, which improves the size and readability of text and other on-screen elements. 10.9.3 also includes 60Hz 4K output for the 2013 Retina Macbook Pros and the higher refresh rates will improve response times for smoother game playing, video editing, and more.

OS X 10.9.3 can be downloaded through the software update function in the Mac App Store or through the following links:

- OS X Mavericks Update v10.9.3 (461.7 MB)
- OS X Mavericks Update v10.9.3 (Combo) (947.2 MB)

Related Forum: OS X Mavericks

Popular Stories

iCloud iPhone 17 Pro

iPhone Users Who Pay for iCloud Storage Get Two New Perks on iOS 27

Thursday July 2, 2026 6:10 am PDT by
If you pay for certain iCloud+ storage plans beyond the 5GB that Apple offers for free, you will receive two more perks on iOS 27 at no additional cost. A summary of the two new iCloud+ perks on iOS 27:Increased daily usage limits for some new Apple Intelligence features, including image generation in the revamped Image Playground app. HomeKit Secure Video cameras receive generated video...
Apple Event Logo

Apple Just Released a New Product

Thursday July 2, 2026 8:04 am PDT by
Apple's first product release of summer 2026 occurred this week, but do not get too excited, as it is merely the Beats Solo Buds in a new color. Beats Solo Buds are now offered in orange through Best Buy in the U.S., with availability set to expand to 7-Eleven stores in Japan on July 4. Apple already offered orange Solo Buds in India for free with the purchase of an iPhone 15 or iPhone 15 ...
iPhone 4 on Black Feature

Apple Facing One of Its Worst Leaks Since the iPhone 4

Thursday July 2, 2026 9:53 am PDT by
Apple supplier Tata Electronics recently suffered a cyberattack that resulted in thousands of confidential files being published on the dark web, and this reportedly included some photos and documents related to the upcoming iPhone 18 Pro. We have elected not to share any of the leaked photos in this story due to the illegal nature in which they were obtained, but they can easily be found...

Top Rated Comments

158 months ago
This is new
Score: 24 Votes (Like | Disagree)
158 months ago
It really breaks my heart to see Apple getting lax on their own UI guidelines.

MacRumors content image

Yes/No buttons are so Windows. Yuck!
Score: 22 Votes (Like | Disagree)
158 months ago
And in which way exactly should they have put it?
According to Apple's own User Interface Guidelines, buttons should have verb names, action-oriented names. They buttons themselves should be enough to decide what to do. Instead, when using Yes/No buttons, the user is forced to read the entire dialog text and then make a decision about whether they need to click Yes or No.

From their guidelines:
Using a more focused button name, such as Erase, Convert, Clear, or Delete, helps make sure that users understand the action they’re taking.
In the example dialog that I provided in my original post, the buttons could've been named "Keep Episodes" and "Delete After Played".
Score: 17 Votes (Like | Disagree)
158 months ago
461mb on 2011 MBP, hope it finally adds the retina display!
Score: 15 Votes (Like | Disagree)
DonutHands Avatar
158 months ago
Images of iPhone 6 3D printed mockups render snappier on 10.9.3
Score: 14 Votes (Like | Disagree)
158 months ago
Safari is much snippier. Seriously, it's in an awful mood and very curt with me.
Score: 13 Votes (Like | Disagree)