Apple Seeds OS X 10.7.5 Build 11G15 to Developers

os x lion iconFollowing yesterday's news that Apple was preparing to begin seeding versions of OS X 10.7.5 to developers, the first of those developer seeds has now been released. This first version arrives as Build 11G15 and asks testers to focus their efforts on the following areas:

- Graphics performance and quality
- Image & Media importing, editing or viewing
- Networking reliability & performance

The build weighs in at 937 MB for the delta version and 1.87 GB for the combo version that can be used to upgrade from any prior version of OS X Lion.

There are no known issues associated with this build, but a timetable for a public release is unknown. Apple has announced that it will be launching OS X Mountain Lion sometime next month, and it is likely looking to release OS X 10.7.5 before that time, although the company has occasionally released maintenance updates for its operating systems even after their successors have launched.

Popular Stories

Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. In his Powe...
Apple Logo Black

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by
The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
We are still waiting for the iOS 26.3 Release Candidate to come out, so the first iOS 26.4 beta is likely still at least a week or two away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
Apple MacBook Pro M4 hero

New MacBook Pros Reportedly Launching Alongside macOS 26.3

Sunday February 1, 2026 5:42 am PST by
Apple is planning to launch new MacBook Pro models with M5 Pro and M5 Max chips alongside macOS 26.3, according to Bloomberg's Mark Gurman. "Apple's faster MacBook Pros are planned for the macOS 26.3 release cycle," wrote Gurman, in his Power On newsletter today. "I'm told the new models — code-named J714 and J716 — are slated for the macOS 26.3 software cycle, which runs from...
iOS 26 Home Feature

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by
In 2022, Apple introduced a new Apple Home architecture that is "more reliable and efficient," and the deadline to upgrade and avoid issues is fast approaching. In an email this week, Apple gave customers a final reminder to upgrade their Home app by February 10, 2026. Apple says users who do not upgrade may experience issues with accessories and automations, or lose access to their smart...

Top Rated Comments

Lone Deranger Avatar
178 months ago
Graphics performance and quality

Updated OpenGL drivers? Wouldn't that be nice.
Score: 10 Votes (Like | Disagree)
mw360 Avatar
178 months ago
And the cliche count weighs in at...

4090 times?

Google Results (http://www.google.co.uk/search?client=safari&rls=en&q=%22weighs+in+at%22+site:www.macrumors.com&ie=UTF-8&oe=UTF-8&redir_esc=&ei=A-DgT-iOG4TR8QPvl9GVDw)
Score: 9 Votes (Like | Disagree)
fabian9 Avatar
178 months ago
Can't wait for Mountain Lion, some really useful features in it for me. :)
Score: 7 Votes (Like | Disagree)
daneoni Avatar
178 months ago
I'm yet to understand how I'm going to be better off with the new OS. I don't use cloud services and from what i have seen so far, it all seems too cosmetic and no substance.

What's floating all of you?

I use cloud services and like cosmetics? *shrug*
Score: 6 Votes (Like | Disagree)
zin Avatar
178 months ago
Graphics performance and quality
My heart stopped.

Due to the excitement around the possibility of updated (and better) graphics drivers.
Score: 4 Votes (Like | Disagree)
QCassidy352 Avatar
178 months ago
I'm yet to understand how I'm going to be better off with the new OS. I don't use cloud services and from what i have seen so far, it all seems too cosmetic and no substance.

What's floating all of you?

If you don't use iCloud, then there's not much point. But if I didn't want iCloud, I'd still be on 10.6. iCloud, however, rocks, so I'll be upgrading again.

Also, dictation would be pretty cool if it's as good as on the iPhone 4s. And the new safari, and the ability to receive on my Mac iMessages sent to my iPhone's phone number.
Score: 4 Votes (Like | Disagree)