Apple Seeds First OS X Mavericks 10.9.5 Beta to Developers - MacRumors
Skip to Content

Apple Seeds First OS X Mavericks 10.9.5 Beta to Developers

Apple today seeded the first build of OS X 10.9.5 to developers, one month after releasing OS X 10.9.4 to the public. The new beta is available through the Software Update mechanism in the Mac App Store and through the Mac Dev Center. The beta has a build number of 13F7.

10_9_5_13f7
OS X 10.9.5 follows new seeds of Safari 7.0.6 and 6.1.6 for Mavericks and Mountain Lion, which were released to developers last night.

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, and Safari.

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.

Related Forum: OS X Mavericks

Popular Stories

Apple iCloud Plus expansion hero

iCloud+ Now Includes Apple TV, Apple Arcade, and Curated Apple Music Stations in Over 100 Countries

Tuesday September 15, 2026 1:43 am PDT by
Apple today announced a new subscription initiative that turns paid iCloud+ subscriptions into a broader services bundle in more than 100 countries. In select countries, Apple says every paid iCloud+ plan, including the cheapest 50GB tier, now includes Apple TV and Apple Arcade "at no additional cost," while family sharing extends the storage, TV and Arcade access to up to five people....
Everything New Your iPhone Can Do on iOS 27 Feature 1

50 New Things Your iPhone Can Do in iOS 27 - Out Now!

Monday September 14, 2026 10:48 pm PDT by
Apple released iOS 27 this week, and despite the company's focus this year on refining its flagship operating system and nixing bugs, there are still many additional features to explore, not least of which is Apple's new context-aware Siri, re-tooled for the generative AI era. Which iPhones Support Every iOS 27 Feature? This year's major iPhone software update isn't all about AI, though,...
iOS 27 Icon iPhone

iOS 27 Available Now With These 8 New Features

Monday September 14, 2026 9:00 am PDT by
Update — 10 a.m. Pacific Time: Apple has released iOS 27. During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14. iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update. Below, we have highlighted eight new features and...

Top Rated Comments

RAPTORSKI Avatar
158 months ago
Who cares about Mavericks, I am already running Yosemite. :D :) :apple:
Score: 10 Votes (Like | Disagree)
158 months ago
Good. Mavericks will be the last OS I install on my Macs so I'm all for making it as stable and reliable as possible.

Good luck with that.
Score: 7 Votes (Like | Disagree)
158 months ago
Will they ever fix the wi-fi issues?

My two uMBP and two rMPBs all sometimes either have no wi-fi after sleep or they do not see the majority of SSIDs in the area.
Score: 7 Votes (Like | Disagree)
MacGeek1987 Avatar
158 months ago
It's really amazing how antiquated Mavericks feels now, after running Yosemite for almost two months. To think Mavericks is still the current system...
Score: 5 Votes (Like | Disagree)
Traverse Avatar
158 months ago
I'm excited for this. 10.9.4 has had issues and caused Kernel Panics for me. Also, I'm not sure if I'll update to Yosemite so I look forward to any improvements they can make to Mavericks.

What about Safari 7.1 that was issued to developers?

----------

This is just the last update that will finish off Mavericks making it as finished as it will get. They did in with 10.7.5, and 10.8.5, so make Mavericks the most solid OS possible
I agree. Really the only thing of value in Yosemite for me is iCloud Drive and a better Safari. I think Safari 7.1 will bring improvements, but Apple won't update Mavericks with iCloud Drive to try and push Yosemite. I am at a point now were I don't want to try everything new. I just want a stable and reliable system, so even if I want to update to Yosemite I will wait until 10.10.1
Score: 5 Votes (Like | Disagree)
Traverse Avatar
158 months ago
I'll probably stick with Mavericks for a long time. I'm just not feeling it with the Yosemite interface.
According to these forums you will be "outdated, stubborn, ignorant, and old fashion." :rolleyes:

P.S: I agree with you, too hard for me to read :D
Score: 4 Votes (Like | Disagree)