Apple today seeded a new version of OS X Lio 10.7.5 to developers for testing. The new version, Build 11G45, arrives less than two weeks after the previous seed, and the build increment of nine suggests that Apple has been continuing to make a number of tweaks to the update in preparation for a public launch.

11g45
Apple continues to list no known issues with the update and is asking developers to focus on the same testing areas as in the previous build, which included graphics performance and image and media handling.

Top Rated Comments

DonutHands Avatar
173 months ago
macrumors ...........................

oh. dear. ...............................

you stole my thread again!

https://forums.macrumors.com/showthread.php?t=1430080

naughty macrumors!

lol, you are obviously the only one who would have ever seen that there was a new build released, every person on the internet should give you credit for letting the world know there is a new build. kudos
Score: 6 Votes (Like | Disagree)
MrNomNoms Avatar
173 months ago
People still use Lion?
Why? ML is so much better!

I assume that is sarcasm - not all computers that can run Lion can run Mountain Lion.
Score: 4 Votes (Like | Disagree)
ScoobyMcDoo Avatar
173 months ago
People still use Lion?
Why? ML is so much better!

Better or not, ML breaks compatibility with some software. Some of us out here use our macs for mission critical functions, thus updating to a dot-zero release would be careless and stupid.
Score: 3 Votes (Like | Disagree)
9822737 Avatar
173 months ago
[url=https://cdn.macrumors.com/im/macrumorsthreadlogodarkd.png]Image (https://www.macrumors.com/2012/08/27/os-x-lion-10-7-5-build-11g45-seeded-to-developers/)[/url]


Apple today seeded a new version of OS X Lio 10.7.5 to developers for testing.


Lio?
Score: 3 Votes (Like | Disagree)
Detrius Avatar
173 months ago
Has anyone installed this? My MP, started flaking out right after i put this latest build on it. The previous build ran fine, however this one keeps effecting 1 of my 8 cores for some reason [ at least that's what the Error Report told me after I finally got it to boot in SAFE MODE].

I can't figure it out. I'm now repairing permissions.

Repairing permissions won't fix it any more than homeopathic remedies will fix a cold. It's the voodoo that people who don't know how Macs work will recommend to other people who know less. Seriously.

Since it's a pre-release build, you should instead boot to your copy of the latest stable release of an OS because no one is silly enough to install pre-release software as their only OS. If you still have issues there, then you have a hardware issue unrelated to the pre-release build. If you don't have issues, you may still have a hardware issue, or it may be a bug in the software. Go through the normal procedures that you as a developer with access to this software would normally follow in order to discuss the issue with Apple.
Score: 2 Votes (Like | Disagree)
TsMkLg068426 Avatar
173 months ago
People still use Lion?
Why? ML is so much better!


Trolololol, here is a reason:biggest we like to wait until all the glitches are worked out before spending $20 on something that will not work.
Score: 2 Votes (Like | Disagree)

Popular Stories

iOS 26

When Will Apple Release iOS 26.2?

Monday December 1, 2025 4:37 pm PST by
We're getting closer to the launch of the final major iOS update of the year, with Apple set to release iOS 26.2 in December. We've had three betas so far and are expecting a fourth beta or a release candidate this week, so a launch could follow as soon as next week. Past Launch Dates Apple's past iOS x.2 updates from the last few years have all happened right around the middle of the...
maxresdefault

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Monday December 1, 2025 3:00 am PST by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Subscribe to the MacRumors YouTube channel for more videos. Below, we've collated an updated set of key details that ...
Sad Siri Feature

Apple AI Chief John Giannandrea Retiring After Siri Delays

Monday December 1, 2025 2:16 pm PST by
Apple AI chief John Giannandrea is stepping down from his position and retiring in spring 2026, Apple announced today. Giannandrea will serve as an advisor between now and 2026, with former Microsoft AI researcher Amar Subramanya set to take over as vice president of AI. Subramanya will report to Apple engineering chief Craig Federighi, and will lead Apple Foundation Models, ML research, and ...
Netflix Smaller 4

Netflix Kills Casting From Its Mobile App to Most Modern TVs

Monday December 1, 2025 4:36 am PST by
Netflix has quietly removed the ability to cast content from its mobile apps to most modern TVs and streaming devices, including newer Chromecast models and the Google TV Streamer. The change was first spotted by users on Reddit and confirmed in an updated Netflix support page (via Android Authority), which now states that the streaming service no longer supports casting from mobile devices...
ios 18 to ios 26 upgrade

Apple Pushes iPhone Users Still on iOS 18 to Upgrade to iOS 26

Tuesday December 2, 2025 11:09 am PST by
Apple is encouraging iPhone users who are still running iOS 18 to upgrade to iOS 26 by making the iOS 26 software upgrade option more prominent. Since iOS 26 launched in September, it has been displayed as an optional upgrade at the bottom of the Software Update interface in the Settings app. iOS 18 has been the default operating system option, and users running iOS 18 have seen iOS 18...
Touchscreen MacBook Feature

Here Are the Four MacBooks Apple Is Expected to Launch Next Year

Monday December 1, 2025 5:00 am PST by
2026 could be a bumper year for Apple's Mac lineup, with the company expected to announce as many as four separate MacBook launches. Rumors suggest Apple will court both ends of the consumer spectrum, with more affordable options for students and feature-rich premium lines for users that seek the highest specifications from a laptop. Below is a breakdown of what we're expecting over the next ...
iphone 17 cyber

iPhone 17 Demand Is Breaking Apple's Sales Records

Tuesday December 2, 2025 9:44 am PST by
Apple's iPhone 17 lineup is selling well enough that Apple is on track to ship more than 247.4 million total iPhones in 2025, according to a new report from IDC. Total 2025 shipments are forecast to grow 6.1 percent year over year due to iPhone 17 demand and increased sales in China, a major market for Apple. Overall worldwide smartphone shipments across Android and iOS are forecast to...
Cyber Week Deals 2025

Best Cyber Week Apple Deals Include Big Discounts on AirPods, Apple Watch, and More

Sunday November 30, 2025 7:33 am PST by
Cyber Week is here, and you can find popular Apple products like AirPods, iPad, Apple Watch, and more at all-time low prices. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. Specifically,...
iOS 26

What to Expect From Apple This December: iOS 26.3 Beta, Replay 2025, and More

Monday December 1, 2025 8:40 am PST by
The calendar has turned to December, and the quieter year-end holiday season is now upon us. Nevertheless, we can still expect a few things from Apple this month. Apple previously announced that iOS 26.2 will be released to the general public in December, and we can expect corresponding updates to be released as well, including iPadOS 26.2, macOS 26.2, watchOS 26.2, tvOS 26.2, and visionOS...
studio display purple february

M5 iPad Pro Could Hint at New Studio Display Feature

Sunday November 30, 2025 10:30 am PST by
The updated specs of the M5 iPad Pro may point toward a major new feature for Apple's next-generation Studio Display expected in early 2026. Apple's latest iPad Pro debuted last month and contains one display-related change that stands out: it can now drive external monitors at up to 120Hz with Adaptive Sync. The feature should deliver lower latency, smoother motion, and fewer visual...