Mac OS X Lion Roundup: Recovery Partitions, TRIM Support, Core 2 Duo Minimum, Focus on Security

With the first developer preview of Mac OS X Lion having been out for over 24 hours now, some additional points of interest are surfacing from those who have had a chance to look through the build. Among the interesting observations:

- Apple has added support for a separate recovery partition, hiding away utilities needed for repair and troubleshooting right on the user's hard drive. The new system will allow users to boot to the recovery partition without the need for an operating system disc. The move, along with the shift to Mac App Store distribution for the developer preview, signal a reduced reliance on DVDs that may become important if other notebooks follow the MacBook Air's lead and see their internal optical drives removed entirely.

153551 lion system profiler trim

- As noted by MacGeneration [Google translation], Apple has added TRIM support in this initial developer build of Mac OS X Lion. TRIM support provides for optimization of solid-state drives by cleaning up unused blocks of data and preparing them for rewriting, preventing slowdowns that would otherwise occur over time as garbage data accumulates.

- Mac OS X Lion requires a minimum of an Intel Core 2 Duo, leaving out compatibility for Apple's earliest Intel-based machines offering Core Solo or Core Duo processors.

- CNET notes that Apple has apparently invited a number of security researchers to test out Mac OS X Lion, a move that seems to signal a more open relationship with those who are trying to find security vulnerabilities in Apple's software.

Popular Stories

iOS 26

Everything New in iOS 26.2 Beta 3

Monday November 17, 2025 3:20 pm PST by
Apple provided developers with the third beta of an upcoming iOS 26.2 update, and there are still new features that are being added with each beta that we get. We've rounded up all of the changes that Apple made in beta 3. AirDrop Apple added new AirDrop functionality, providing a way for two people to share files temporarily without having to add one another as contacts. iOS 26.2...
applecare apple care banner

Apple Brings New AppleCare+ Options to India

Tuesday November 18, 2025 8:42 am PST by
Apple today announced an expansion of AppleCare+ coverage in India, with new options for monthly and annual plans, and the addition of Theft and Loss for iPhone for the first time. Options for monthly and annual AppleCare+ plans in India provide more choice and flexibility, allowing users to keep coverage for as long as they require. Apple's vice president of Worldwide iPhone Product...
Apple Wallet ID Illinois

iPhone Driver's License Feature Launching in Illinois

Tuesday November 18, 2025 8:47 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Starting this Wednesday, November 19, the feature will be available to residents of Illinois. The announcement confirmed that the...
Apple Sports App Preview Feature

Apple Sports App on iPhone Now Available in More European Countries

Monday November 17, 2025 6:27 am PST by
The free Apple Sports app on the iPhone was released in additional European countries today, including Belgium, Croatia, Czechia, the Netherlands, Luxembourg, Poland, Hungary, Denmark, Finland, Norway, Sweden, Switzerland, Slovakia, Slovenia, Serbia, Greece, Estonia, Latvia, Romania, Ukraine, and others. The app was already available in the U.S., the U.K., Canada, Austria, France, Germany,...
Magic Keyboard Touch ID Feature

Apple Releases New Firmware for 140W USB-C Power Adapter, Magic Keyboard and Magic Trackpad

Tuesday November 18, 2025 1:05 pm PST by
Apple today released updated firmware for several accessories, including the 140W USB-C Power Adapter, the Magic Trackpad 2, the Magic Trackpad USB-C, the Magic Keyboard with Touch ID, and the Magic Keyboard with Touch ID and Numeric Keypad. There is no word on what's included in the updated firmware at this time, but it could offer performance improvements and security updates. Accessory...
iPhone 17 Pro and Air N1 Feature

iPhone 17 vs. iPhone 16 Wi-Fi Speeds: New Study Reveals the Winner

Tuesday November 18, 2025 10:53 am PST by
A new study has revealed that the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air achieve significantly faster average Wi-Fi speeds compared to the iPhone 16 series, thanks to Apple's custom-designed N1 chip. The study was conducted by Ookla, the company behind the popular Speedtest website and app. It said the results are based on global, crowdsourced Speedtest user data...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Wednesday November 19, 2025 4:00 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
best early black friday deals

Best Black Friday Apple Deals Live Now - Save on AirPods, iPads, and Apple Watches

Saturday November 15, 2025 1:45 pm PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. 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 ...
macbook black friday

The Best Early Black Friday Mac Deals

Tuesday November 18, 2025 7:32 am PST by
We're getting closer to Black Friday, which lands next week on Friday, November 28. In the lead-up to the shopping holiday, we're tracking a few lowest-ever prices on Apple's most popular Macs, including the M4 MacBook Air and brand new M5 MacBook Pro. 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,...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...

Top Rated Comments

Winnychan213 Avatar
192 months ago
Seriously? People are whining that their now 5 year old computers won't be supported? :rolleyes: That's how technology progresses. 5 years encompasses a lot of technology.

I install windows 7 on my seven years PC and it screams! (Not just the noisy fan)
Score: 1 Votes (Like | Disagree)
me_94501 Avatar
192 months ago
Seriously? People are whining that their now 5 year old computers won't be supported? :rolleyes: That's how technology progresses. 5 years encompasses a lot of technology.
A new computer is also a significant investment for some, considering the continually sucky economic climate. Given that, I'd say you're a little too quick to dismiss people's concerns.
Score: 1 Votes (Like | Disagree)
lostngone Avatar
192 months ago
Core 2 Duo minimum?

Does that mean it will run crappy on a 2010 MBP or will it run smoothly?
2010? Really? That is really old! What possible reason would you have to still be using that? Didn't that come installed with Jaguar or was it Panther? Does it even run Leopard? I think it is time to upgrade that antique!
Score: 1 Votes (Like | Disagree)
PatrickCocoa Avatar
192 months ago
Ghost Killer

Well, there goes my still-perfectly-functional-and-used MacBook 2 GHz Core Duo. :(

Because when your neighbor installs Lion, his version will leap across to your house and kill your old MacBook?
Score: 1 Votes (Like | Disagree)