Apple has seeded a new beta of OS X 10.8.1 to developers, exactly a week after the first build came out, according to 9to5Mac.

The release has a build number of 12B17 and Apple reports no known issues, but asks developers to focus on a wide variety of areas for their testing. The delta update -- where only items that have changed are downloaded -- weighs in at 43.27MB.

Mountainlionbeta
According to 9to5Mac, developers have been asked to test Active Directory, Microsoft Exchange in Mail, PAC proxies in Safari, SMB, USB, and Wi-Fi and audio when connected to the Apple Thunderbolt display -- the same list of items as the prior release.

The OS X 10.8.1 seed is available for download via the OS X Developer portal at developer.apple.com.

Top Rated Comments

milo Avatar
163 months ago
No, I haven't installed it - but I have been following the various reports of hard crashes, absurdly short battery life and iOS-like oddities. And it doesn't seem that great to me.

So whining about something you've never even tried. Thanks, that's useful.

There are always problems with any release of any software, OS or otherwise, so anyone could declare any release a "train wreck" if the only basis for that is some people reporting problems online.

What really matters is how widespread problems are and how severe they are. Problems are to be expected for any .0 release, and for a .0 release it's surprisingly solid (heck of a lot better than 10.7.0, and I suspect better than 10.7.4 for most people).

It's just common knowledge, anyone doing mission critical work or otherwise sensitive to issues should skip all .0 releases (and often one or two after that). And those that do need not regale us with whining about problems they've just heard about, that adds nothing to the discussion.
Score: 9 Votes (Like | Disagree)
Ulf1103 Avatar
163 months ago
Possible release next week since there are no known issues.

All things considered Mountain Lion has been pretty much problem free for a 10.x.0 release.

Then please, read every post in this thread:

https://discussions.apple.com/thread/4135250?start=0&tstart=0

and then report back :P
Score: 8 Votes (Like | Disagree)
Cynicalone Avatar
163 months ago
Possible release next week since there are no known issues.

All things considered Mountain Lion has been pretty much problem free for a 10.x.0 release.
Score: 7 Votes (Like | Disagree)
mw360 Avatar
163 months ago
So, still no fix for the "weighs in at" issue. :rolleyes:
Score: 6 Votes (Like | Disagree)
Kariya Avatar
163 months ago
Install the OS and see for yourself if it really is that terrible instead of complaining for the sake of complaining.

As it stands you're just whining and whining...and its quite annoying to read in every other thread one comes across.
Score: 4 Votes (Like | Disagree)
canadianpj Avatar
163 months ago
And people CONTINUE to spout the same nonsense about the purported advantages of a "clean install" - for every five positive reports, I can show you five OTHER reports in these forums from users who have the same if not worse problems AFTER a clean install.

So let's stop with this placebo recipe, shall we?[COLOR="#808080"]

I did a clean install. It worked for ME, perhaps it will not work for YOU or OTHER people but it worked for ME. A clean install of a new OS is never a bad thing to get rid of left over files here and there.

It's not the end all be all solution to anything, but it can be beneficial. I know you do not think so but so far as I can tell you don't like much of anything.
Score: 4 Votes (Like | Disagree)

Popular Stories

Apple iPhone 16e Feature

Apple Announces iPhone 16e With A18 Chip and Apple Intelligence, Pricing Starts at $599

Wednesday February 19, 2025 8:02 am PST by
Apple today introduced the iPhone 16e, its newest entry-level smartphone. The device succeeds the third-generation iPhone SE, which has now been discontinued. The iPhone 16e features a larger 6.1-inch OLED display, up from a 4.7-inch LCD on the iPhone SE. The display has a notch for Face ID, and this means that Apple no longer sells any iPhones with a Touch ID fingerprint button, marking the ...
iphone 17 pro asherdipps

iPhone 17 Pro Models Rumored to Feature Aluminum Frame Instead of Titanium Frame

Tuesday February 18, 2025 12:02 pm PST by
Over the years, Apple has switched from an aluminum frame to a stainless steel frame to a titanium frame for its highest-end iPhones. And now, it has been rumored that Apple will go back to using aluminum for three out of four iPhone 17 models. In an investor note with research firm GF Securities, obtained by MacRumors this week, Apple supply chain analyst Jeff Pu said the iPhone 17, iPhone...
apple launch feb 2025 alt

Here Are the New Apple Products We're Still Expecting This Spring

Thursday February 20, 2025 5:06 am PST by
Now that Apple has announced its new more affordable iPhone 16e, our thoughts turn to what else we are expecting from the company this spring. There are three product categories that we are definitely expecting to get upgraded before spring has ended. Keep reading to learn what they are. If we're lucky, Apple might make a surprise announcement about a completely new product category. M4...
Generic iOS 18

Here's When Apple Will Release iOS 18.4

Wednesday February 19, 2025 11:38 am PST by
Following the launch of the iPhone 16e, Apple updated its iOS 18, iPadOS 18, and macOS Sequoia pages to give a narrower timeline on when the next updates are set to launch. All three pages now state that new Apple Intelligence features and languages will launch in early April, an update from the more broader April timeframe that Apple provided before. The next major point updates will be iOS ...
prioritize notifications ios 18 4

Everything New in iOS 18.4 Beta 1

Friday February 21, 2025 1:08 pm PST by
Apple finally released the first beta of iOS 18.4 to developers for testing purposes, and while the beta is lacking some of the Apple Intelligence features we were hoping for, there are some notable new additions. Subscribe to the MacRumors YouTube channel for more videos. Priority Notifications - Apple Intelligence There is a new Priority Notifications feature that can show you your most...
apple launch feb 2025

Tim Cook Teases an 'Apple Launch' Next Wednesday

Thursday February 13, 2025 8:07 am PST by
In a social media post today, Apple CEO Tim Cook teased an upcoming "launch" of some kind scheduled for Wednesday, February 19. "Get ready to meet the newest member of the family," he said, with an #AppleLaunch hashtag. The post includes a short video with an animated Apple logo inside a circle. Cook did not provide an exact time for the launch, or share any other specific details, so...
iPhone 16e Feature

Apple Denies Speculation Surrounding iPhone 16e's Lack of MagSafe

Friday February 21, 2025 8:01 am PST by
Apple has confirmed that its custom-designed C1 modem in the iPhone 16e has nothing to do with the device's lack of MagSafe support, according to Macworld. Following the launch of the iPhone 16e, there was some speculation online about how MagSafe magnets might have interfered with the C1 modem's cellular connectivity performance, and this was considered to be a potential reason for the...
ios 18 4 ambient music

iOS 18.4 Adds New Ambient Music Feature

Friday February 21, 2025 11:06 am PST by
In iOS 18.4, there's a new Ambient Music option that can be added to Control Center. There are four different sound categories, including Sleep, Chill, Productivity, and Wellbeing. Each category can be added to Control Center separately, and tapping one plays a random selection of sounds or music from that particular category. You can't choose what's playing from Control Center, but if...