Apple Seeds OS X Mavericks 10.9.5 Build 13F31 to Developers - MacRumors
Skip to Content

Apple Seeds OS X Mavericks 10.9.5 Build 13F31 to Developers

by

Apple today seeded Mavericks 10.9.5 build 13F31 to developers, just over a week after seeding the fifth OS X 10.9.5 beta, build 13F24, and more than a month after releasing OS X 10.9.4 to the public.

The beta is available through the Software Update mechanism in the Mac App Store and through the Mac Developer Center.

10_9_5_13f31
It is unclear what improvements the 10.9.5 update will bring to Mavericks, but it is likely to include bug fixes and stability enhancements. Apple is asking developers to focus on USB, USB Smart Cards, Graphics, Safari, and Thunderbolt.

Along with working on improvements to Mavericks, Apple is also beta testing OS X Yosemite, which is due to be released in the fall. The last Mavericks update, 10.9.4, added several Wi-Fi fixes and improved wake from sleep reliability.

Top Rated Comments

Parasprite Avatar
158 months ago
Too be honest, who cares about Mavericks anymore? lol Yosemite is just around the corner :D
It's generally good practice to wait before installing a .0 release (preferably until .1) in case there are major bugs that effect your workflow, and to make sure your software is compatible.

...fortunately, I'm impulsive and prefer to live dangerously. :cool:
Score: 13 Votes (Like | Disagree)
cjmillsnun Avatar
158 months ago
Yosemite is a toy!

That's a stupid comment to make. In terms of back end features and security, Yosemite is as good, if not better than Mavericks. You may not like the UI, but that doesn't make it a toy.

Windows OTOH :eek:
Score: 8 Votes (Like | Disagree)
158 months ago
My ignorance to what, the dinosaurs that think osx 5 years ago was better than now?

It isn't. I've been using OS X since System 6 and Mavericks is the best release so far. The only release that wasn't that impressive was Lion.
Score: 6 Votes (Like | Disagree)
loby Avatar
158 months ago
I welcome any updates to Mavericks, for as others have said a new OS X stills has bugs. For those who use OS X for business, we need a stable version for production. Too risky to update right away. I was an early beta tester for Yosemite and was not impressed with it, so I will not update quickly and will wait until it grows on me.

I would like to ask Apple if I could, "Why the need to change the OS X every year?".
Score: 6 Votes (Like | Disagree)
158 months ago
I hope they have fixed Mavericks's 'Sleep/wake crash'. Very annoying.

You'll need to be more specific. Doesn't happen on any of my Macs.

----------

Too be honest, who cares about Mavericks anymore? lol Yosemite is just around the corner :D

Yosemite just feels too alien to me to be a true Mac OS. I'm running a fresh install of Public Beta on a 2012 MacBook Pro and the "feel" just isn't right. Not even close to the finely-tuned feel of Mavericks and previous incarnations. I think it takes things too far. I just hope they continue to refine the UI to get back the original Mac feel.

And that darn smiling Finder icon needs to go! Bring back to more subtle smile. It communicates a very different emotion/attitude. I don't want to be using a child's toy.
Score: 6 Votes (Like | Disagree)
158 months ago
3-4 years...? Where did you get that idea anyway...? The longest OS X iterations has been 10.4 Tiger for 30 months before Leopard came out (and if you failed math, 30 months is LESS than 3 years)... And Tiger happened to be one of the most stable OS X releases to date with 11 maintenance releases.

And since you've come from the Windows :rolleyes: world I bet you have not used anything before Mavericks or even before Lion...? It's sad that recent Apple efforts have only attracted Windows users like you to OS X just to heap praises around how superior Mavericks is to Windows. Well let me tell you something - every OS X releases prior to Lion is way much better than what you think you now have. Useless features like Full Screen crap and Window Resizing from every other corner is just another Windows-copied-over features, which I think don't even qualify as features.

IMO the last major features ever introduced by Apple enough to wow the crowd would probably be Leopard. Snow Leopard, though without major features, was the high point release that some people here are still using - stability and efficiency. Anything beyond that are craps just to lure Windows losers over for a bigger market share.

Right now I find more tiny bugs on Mavericks than in Snow Leopard. Granted Mavericks will only have 5 maintenance releases with the upcoming 10.9.5 soon, compared to Snow Leopard with 8. If Mavericks is to be given a chance for 8, it would have been equal if not coming close to the latter's performance and stability.

This is something that you WILL NOT understand... :rolleyes:
Apparently you did not read the whole thread. I responded to people that made the suggestion osx should only be released every 3-4 years, I never said they actually used to do that.
You also said anything beyond snow leopard was crap, are you serious or just making stuff up as up you go. Continuity alone is better than anything apple has done with osx over the last few years.
Mavericks was/is awesome just for all the power management stuff. You also mentioned performance, something that osx lost along the way and didn't come back until mavericks.
You are deusional to say osx was better before lion than it is now, I mean seriously. Maybe you should use specific example instead of just making stupid comments like a 12 year old.
Also I have used osx since lion, but apparently you know everything.
People like you is something that I WILL NEVER UNDERSTAND
Score: 5 Votes (Like | Disagree)

Popular Stories

macOS 27 next to MacBook Pro Running macOS 27

Apple Announces 'Full Disk Access' Changes on macOS Due to AI Agents

Friday October 2, 2026 12:59 pm PDT by
In a post on its developer news website today, Apple announced that it will be introducing "additional controls" for the "Full Disk Access" setting on macOS due to new risks posed by AI agents. This announcement comes amid the rise of always-on AI agents like Meta's Muse and OpenAI's Dots, which have prompted privacy concerns. "Some developers are using Full Disk Access in ways that could...
iPhone 18 Pro Max Glacier Camera

Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced

Friday October 2, 2026 8:21 pm PDT by
Apple today confirmed that a "small number" of iPhone 18 Pro Max users on the AT&T network have experienced an issue that causes the device to lose cellular service, thereby preventing phone calls, text messages, and data from working. Thousands of users complained about the issue across the Apple Support Community and other platforms. Apple said it released iOS 27.0.1 earlier this week and...
iPhone 18 Pro Max ATT

AT&T Acknowledges iPhone 18 Pro Max Issues: Update 'Immediately'

Thursday October 1, 2026 8:42 pm PDT by
In a text message sent to customers today, AT&T acknowledged that some iPhone 18 Pro Max devices on its network are experiencing cellular issues. AT&T said that customers should immediately update to iOS 27.0.1, despite the fact that many affected users have said that the update does not resolve the issues. There are now at least thousands of users that have experienced this problem,...
Latest Stories
Apple Watch Prime Day Deals Arrive With New All-Time Low Prices for Series 12 and Ultra 4
Apple Watch Prime Day Deals Arrive With New All-Time Low Prices for Series 12 and Ultra 4
9 minutes ago
Apple Releases MagSafe 3 Charging Cable Firmware Update
Apple Releases MagSafe 3 Charging Cable Firmware Update
10 minutes ago
AirPods Max 2 Drop to $429 in All Colors for Prime Day
AirPods Max 2 Drop to $429 in All Colors for Prime Day
30 minutes ago
Apple Quietly Triples iCloud Mail Alias Limit to Nine
Apple Quietly Triples iCloud Mail Alias Limit to Nine
54 minutes ago
Mac Users Can Reclaim Storage With Apple Intelligence Removal Tool
Mac Users Can Reclaim Storage With Apple Intelligence Removal Tool
2 hours ago
iPhone Duo Makes Focus Modes Easier to Toggle From the Lock Screen
iPhone Duo Makes Focus Modes Easier to Toggle From the Lock Screen
3 hours ago
EU iPhone and iPad Users Could Still Face Months-Long Wait for Siri AI
EU iPhone and iPad Users Could Still Face Months-Long Wait for Siri AI
3 hours ago
Today Marks the 15th Anniversary of Steve Jobs' Death
Today Marks the 15th Anniversary of Steve Jobs' Death
4 hours ago
iPhone 18 Pro's Triple Live Activity Support Comes With a Catch
iPhone 18 Pro's Triple Live Activity Support Comes With a Catch
5 hours ago
Apple's New CEO John Ternus is Making Product Design a 'Major Priority'
Apple's New CEO John Ternus is Making Product Design a 'Major Priority'
11 hours ago
Apple Hiring 'iCup' Specialist
Apple Hiring 'iCup' Specialist
11 hours ago
MacBook Pro With OLED Display Rumored to Be 'Significantly Lighter'
MacBook Pro With OLED Display Rumored to Be 'Significantly Lighter'
12 hours ago
Apple Event Reportedly Planned for October 13
Apple Event Reportedly Planned for October 13
13 hours ago
Amazon Launches Early Prime Day Discounts on AirPods, iPad, MacBook Air, and More
Amazon Launches Early Prime Day Discounts on AirPods, iPad, MacBook Air, and More
8 minutes ago
AirPods Pro 3 Hit Record Low $179 Price During Early Prime Day Sale
AirPods Pro 3 Hit Record Low $179 Price During Early Prime Day Sale
22 hours ago
Top Stories: Apple Smart Home Launch on October 13, iPhone Duo Production Issues, and More
Top Stories: Apple Smart Home Launch on October 13, iPhone Duo Production Issues, and More
2 days ago
Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced
Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced
2 days ago
Apple Announces 'Full Disk Access' Changes on macOS Due to AI Agents
Apple Announces 'Full Disk Access' Changes on macOS Due to AI Agents
3 days ago
AT&T and Apple Just Took Steps Toward Fixing iPhone 18 Pro Max Issue
AT&T and Apple Just Took Steps Toward Fixing iPhone 18 Pro Max Issue
3 days ago
AT&T on iPhone 18 Pro Max Issues: 'We Are Working With Apple'
AT&T on iPhone 18 Pro Max Issues: 'We Are Working With Apple'
3 days ago
Upgrading From an Older Apple Watch? Here's How the New Features Stack Up
Upgrading From an Older Apple Watch? Here's How the New Features Stack Up
3 days ago
Beats 360 Cushion Kits and Apple Accessories See Early Prime Day Price Drops
Beats 360 Cushion Kits and Apple Accessories See Early Prime Day Price Drops
3 days ago
Apple Store in UK Reopening on iPhone Duo Launch Day
Apple Store in UK Reopening on iPhone Duo Launch Day
3 days ago
AT&T Acknowledges iPhone 18 Pro Max Issues: Update 'Immediately'
AT&T Acknowledges iPhone 18 Pro Max Issues: Update 'Immediately'
3 days ago
New 'AirFly Drive' Accessory Turns Wired CarPlay Into Wireless CarPlay
New 'AirFly Drive' Accessory Turns Wired CarPlay Into Wireless CarPlay
4 days ago
Apple Shares Photos Shot on iPhone Duo
Apple Shares Photos Shot on iPhone Duo
4 days ago
Apple Says iPhone Duo Has Replaceable 'Cover Layer'
Apple Says iPhone Duo Has Replaceable 'Cover Layer'
4 days ago
Apple's Smart Home Camera Will Apparently Have 'No Video Recording'
Apple's Smart Home Camera Will Apparently Have 'No Video Recording'
4 days ago
Apple TV Just Updated Its Selection of 'Bonus' Movies
Apple TV Just Updated Its Selection of 'Bonus' Movies
4 days ago
iPhone 18 Pro Colors Buyer's Guide: Which Should You Choose?
iPhone 18 Pro Colors Buyer's Guide: Which Should You Choose?
4 days ago