mavericks.pngApple today seeded build 13D55 of OS X 10.9.3 to developers, just over a week after releasing the eighth OS X beta, build 13D45a, and nearly two months after the first 10.9.3 beta.

The beta is available through the Software Update mechanism in the Mac App Store as well as through the Mac Dev Center.

Apple continues to ask developers to focus on Graphics Drivers, Audio, Mail, Contacts and Calendar sync over USB in iTunes, and Safari. As was discovered with the first beta, 10.9.3 adds new support for 4K displays, offering “Retina” resolutions that improve readability along with support for 60Hz output from the Retina MacBook Pro.

Top Rated Comments

v1597psh Avatar
95 months ago
Apple also added support in previous builds of 10.9.3 for Slow-motion playback in QuickTime and QuickLook for videos with high frame rate. For example captured by iPhone 5s. This feature hasn't been mentioned in the thread.
Score: 13 Votes (Like | Disagree)
slicecom Avatar
95 months ago
655MB. Just kidding - I have no clue how big it is - but I miss those meaningless size of the download posts.

Downloading now. Just kidding - I'm not downloading it right now - but I miss those meaningless downloading now posts.
Score: 12 Votes (Like | Disagree)
MrGimper Avatar
95 months ago
I've already explained why public beta testers can't see it yet.



You should read previous posts in this thread.



Do I have to start quoting myself?
No, but you could get off your soap box...
Score: 11 Votes (Like | Disagree)
Michael Goff Avatar
95 months ago
I've already explained why public beta testers can't see it yet.

You should read previous posts in this thread.

Do I have to start quoting myself?

I assume that, given the tone of this post, you must work for Apple? You must have some reason to expect everybody to just accept your word as the end-all-be-all.
Score: 11 Votes (Like | Disagree)
SvP Avatar
95 months ago
There is a good reason for the delay in releasing it to public beta testers (or for that matter not releasing it at all to them).

Lets say the build is a disaster and ruins your mac. Developers are probably better at fixing it than the general public. So it makes sense to give it to them first - just in case it is a disaster.

Nonsense
Score: 10 Votes (Like | Disagree)
laurihoefs Avatar
95 months ago
Apple has way too many $billions in their pocket to being crowd-sourcing (and without any sort of monetary reward, to boot) beta-testing of an operating system. Hire more people, Apple. Apple could literally afford to have two thousand guys in a huge auditorium doing nothing but beta-testing OS X all day. They wouldn't reguire a huge salary, either. I'm sure a number of computer geeks out there would be willing to do that for $10/hour. It would come with the prestige of being an Apple employee ;)

Companies don't (or at least shouldn't) do public betas to cut costs, they do them to improve the quality of their software. Public betas might not even be cheaper than hiring people directly to do the testing: the company has to go through more support requests, more bug reports, more bandwidth used to distribute the betas, etc.

What makes public betas so useful, is that it brings more environments, users, use cases, and combinations of hardware and software to the testing, than you could ever arrange in a controlled testing environment. For example, the with more beta testers the issues with WD SmartWare (https://www.macrumors.com/2013/11/26/western-digital-releases-new-hard-drive-software-after-mavericks-data-loss/) might have been spotted well before Mavericks was released. It's much easier to recognize patterns, if you have more bug reports to work with.
Score: 5 Votes (Like | Disagree)

Top Stories

Flat 2021 MacBook Pro Mockup Feature

Unreleased Apple Macs and Apple Watches Listed in Eurasian Database Ahead of Fall Product Launches

Monday August 2, 2021 9:34 am PDT by
Apple is preparing for a slew of fall product launches according to new filings that showed up today in the Eurasian Economic Commission database. There are listings for new Mac and Apple Watch models, all of which have previously unknown model identifiers that indicate that they're upcoming devices. There are six new Apple Watch identifiers, including A2473, A2474, A2475, A2476, A2477, and...
ifixit iphone12 mini

Apple to Make Space for Larger Batteries in iPhones, iPads, and MacBooks By Adopting Slimmer Peripheral Chips

Monday August 2, 2021 2:12 am PDT by
For future iPhones, iPads, and MacBooks, Apple plans to use smaller internal components in an effort to increase the size of the device's battery, according to DigiTimes. Image Credit: iFixit Specifically, Apple plans to "significantly increase the adoption" of IPDs or integrated passive devices for the peripheral chips in its products. These news chips will be slimmer in size and allow for...
Apple Watch 7 Unreleased Feature

Apple Watch Series 7 to Focus on One Major Upgrade

Wednesday August 4, 2021 2:12 am PDT by
The upcoming Apple Watch Series 7 will focus on one important feature in an attempt to tempt existing Apple Watch users that have an older device to upgrade, according to recent reports. Apple may skip adding new health sensors to this year's Apple Watch Series 7 in favor of improving the device's battery life. The company is said to be adopting new double-sided System in Package (SiP)...
magic keyboard touch id

Apple Makes Magic Keyboard With Touch ID Available for Separate Purchase

Tuesday August 3, 2021 5:22 am PDT by
Apple has made the Magic Keyboard with Touch ID, which previously was only available with the purchase of the new 24-inch iMac, available for purchase individually for $149. Apple also retails the Magic Keyboard with Touch ID and a numeric keypad for $179. A standard Magic Keyboard without Touch ID or a numeric keypad is available for $99, and a new Magic Trackpad for $129. One major...
iPhone 13 Wi Fi 6E feature update

Wi-Fi 6E Explained: What It Could Mean for iPhone 13 and Beyond

Monday August 2, 2021 8:00 am PDT by
The iPhone 13 is widely expected to come with Wi-Fi 6E capabilities, and while it may seem rather nuanced to the average consumer, with only improved speeds and being "up to date" in the realm of Wi-Fi technology, it's actually a fairly significant improvement, laying the groundwork for much of what we know the future holds. To truly understand Wi-Fi 6E, MacRumors sat down for an exclusive...
applestoredown

Apple's Online Store Temporarily Down [Update: Back Up]

Tuesday August 3, 2021 4:01 pm PDT by
Apple's online Apple Store is down at the current time, and attempting to access it to make a purchase gives the standard "Be Right Back" message. Given that it's a Tuesday night/afternoon in the United States and we're not expecting any new products this week, it's likely that this is a temporary maintenance outage that is not related to a new product release. The Apple Store app is also...
themorningshowcarrell

Apple Decided Not to Buy Reese Witherspoon's 'Hello Sunshine' Media Company

Monday August 2, 2021 2:02 pm PDT by
Reese Witherspoon's media company "Hello Sunshine" recently courted various buyers, and while Apple was one of parties interested in buying Hello Sunshine, the Cupertino company did not end up going through with the purchase. Hello Sunshine was valued at around $900 million thanks to its involvement in popular series like The Morning Show," "Big Little Lies," and "Little Fires Everywhere,"...
iPhone 13 Dummy Thumbnail 2

Apple Brings China's Luxshare Precision into iPhone 13 Supply Chain to Meet Production Targets

Wednesday August 4, 2021 12:19 am PDT by
Apple is tapping more Chinese suppliers as it seeks to meet ambitious targets for iPhone 13 production, according to a new report by Nikkei Asia. Apple is set to produce between 90 million and 95 million iPhones through January, according to a previous Nikkei report, and China's Luxshare Precision Industry has won 3% of orders away from Taiwanese rivals Foxconn and Pegatron. Luxshare will...
mac pro new graphics

Apple Introduces New High-End Graphics Options for Mac Pro

Tuesday August 3, 2021 7:34 am PDT by
Apple today began offering new high-end graphics upgrade options for both the tower and rack versions of the Mac Pro desktop computer. This comes on the same day that Apple started selling the Magic Keyboard with Touch ID on a standalone basis. As noted by CNN Underscored's Jake Krol, the Mac Pro can now be configured with new AMD Radeon Pro W6800X, W6800X Duo, or W6900X graphics when...
General Apps Messages

Android iMessage Competitor Puts Pressure on Apple

Friday July 30, 2021 3:15 am PDT by
Google and the three major U.S. carriers, including Verizon, AT&T, and T-Mobile, will all support a new communications protocol on Android smartphones starting in 2022, a move that puts pressure on Apple to adopt a new cross-platform messaging standard and may present a challenge to iMessage. Verizon recently announced that it is planning to adopt Messages by Google as its default messaging...