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.
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)
Popular Stories
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
If you have been experiencing issues with wireless CarPlay in your vehicle lately, it was likely due to a software bug that has now been fixed.
Apple released iOS 18.4.1 today, and the update's release notes say it "addresses a rare issue that prevents wireless CarPlay connection in certain vehicles."
If wireless CarPlay was acting up for you, updating your iPhone to iOS 18.4.1 should...
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup.
If you skipped the iPhone...
Apple is preparing a "bold" new iPhone Pro model for the iPhone's 20th anniversary in 2027, according to Bloomberg's Mark Gurman. As part of what's being described as a "major shake-up," Apple is said to be developing a design that makes more extensive use of glass – and this could point directly to the display itself.
Here's the case for Apple releasing a truly all-screen iPhone with no...
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Subscribe to the MacRumors YouTube channel for more videos.
Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025:
Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and ...
The first iOS 19 beta is less than two months away, and there are already a handful of new features that are expected with the update.
Apple should release the first iOS 19 beta to developers immediately following the WWDC 2025 keynote, which is scheduled for Monday, June 9. Following beta testing, the update should be released to the general public in September.
Below, we recap the key...
Apple today released tvOS 18.4.1, a minor update to the tvOS 18 operating system that came out last September. tvOS 18.4.1 comes two weeks after Apple released tvOS 18.4, and it is available for the Apple TV 4K and Apple TV HD models.
tvOS 18.4.1 can be downloaded using the Settings app on the Apple TV. Open up Settings and go to System > Software Update to get the new software....
This week saw rumor updates on the iPhone 17 Pro and next-generation Vision Pro, while a minor iOS 18.4.1 update delivered not just security fixes but also a fix for some CarPlay issues.
We also looked ahead at what else is in Apple's pipeline for the rest of 2025 and even the 20th-anniversary iPhone coming in 2027, so read on below for all the details on these stories and more!
iPhone 17 ...
Apple TV+ is currently available at a much lower price than usual, but time is running out if you want to take advantage of the offer.
In the U.S., new and qualified returning customers can subscribe to Apple TV+ for just $2.99 per month, for three months. Afterwards, regular pricing of $9.99 per month applies. The offer is available in the Apple TV app, and at tv.apple.com, through April...
