OS X 10.11 El Capitan, the successor to OS X Yosemite, is capable of running on all Macs that are able to run Yosemite, according to the OS X 10.11 release notes (via Ars Technica). The first developer beta is listed as supporting the following Macs, which are the same that are able to run Yosemite:

- iMac (Mid 2007 or newer)
- MacBook Air (Late 2008 or newer)
- MacBook (Late 2008 Aluminum, or Early 2009 or newer)
- Mac mini (Early 2009 or newer)
- MacBook Pro (Mid/Late 2007 or newer)
- Mac Pro (Early 2008 or newer)
- Xserve (Early 2009)

OS X El Capitan is focused heavily on performance improvements to make the Mac "snappier and more efficient." According to Apple, apps launch up to 1.4x faster and app switching is up to 2x faster. Displaying the first Mail messages when opening mail is up to 2x faster, and it's up to 4x faster when opening a PDF in preview.

elcapitanperfomanceenhancements
El Capitan also brings Metal to OS X for the first time, improving graphics for more fluid performance in games, high performance apps, and key system-level graphics operations.

iOS 9, the upcoming update for iOS devices, has also been designed to work with all devices that run iOS 8. Even older A5 devices like the iPad 2 and the iPhone 4s will be able to run the new operating system, and in many cases, performance will improve over iOS 8 thanks to the optimizations being introduced.

Both OS X El Capitan and iOS 9 will be available to the public in the fall, with a public beta becoming available in July.

Top Rated Comments

mrxak Avatar
82 months ago
Pretty terrible name.
Score: 20 Votes (Like | Disagree)
keysofanxiety Avatar
82 months ago
Thankfully Apple's insistence to still sell computers with spinning HDDs, and release 'updated' computers with worse specs, has forced their hand to improve software performance. If you work around the limitations of the hardware, it's likely you'll bring out the best from the software.

Anyway, good job Apple. You did the right thing on focusing on performance rather than new features.
Score: 16 Votes (Like | Disagree)
nezr Avatar
82 months ago
El Crappy name
Score: 14 Votes (Like | Disagree)
OriginalMacRat Avatar
82 months ago
Thankfully Apple's insistence to still sell computers with spinning HDDs...
MacBook: SSD only
MacBook Air: SSD only
MacBook Retina: SSD only
Mac Pro: SSD only

Only the iMac and Mac mini (and the legacy MBP 13") even have HDD options.
Score: 14 Votes (Like | Disagree)
ReesMaxwell Avatar
82 months ago
You all DO realize that they named it El Capitan because it is supposed to be similar to Yosemite...not a huge update on features, but on performance...akin to Leopard, then Snow Leopard. Get it, Yosemite, then El Capitan!
Score: 13 Votes (Like | Disagree)
Aldaris Avatar
82 months ago
4x faster to open a PDF in preview?!?

Great Yosemite messed up preview so bad-probably to make el capitan snappier.
Score: 8 Votes (Like | Disagree)

Top Stories

iphone 12 colors 2021

iPhone 12 Colors: Deciding on The Right Color

Thursday November 5, 2020 8:35 am PST by
The iPhone 12 and iPhone 12 Pro arrived last October in a range of color options, with entirely new hues available on both devices, as well as some popular classics. The 12 and 12 Pro have different color choices, so if you have your heart set on a particular shade, you might not be able to get your preferred model in that color. iPhone 12 mini and iPhone 12 The iPhone 12 mini and iPhone 12...
iPhone 13 Dummy Thumbnail 2

Full iPhone 13 Feature Breakdown: Everything Rumors Say We Can Expect

Tuesday August 31, 2021 7:50 am PDT by
With the launch of Apple's iPhone 13 lineup believed to be just a few weeks away, we have compiled all of the coherent rumors from our coverage over the past year to build a full picture of the features and upgrades coming to the company's new smartphones. For clarity, only explicit improvements, upgrades, and new features compared to the iPhone 12 lineup are listed. It is worth noting that...
original iphone

Phil Schiller Says iPhone Was 'Earth-Shattering' Ten Years Ago and Remains 'Unmatched' Today

Monday January 9, 2017 7:15 am PST by
To commemorate the tenth anniversary of the iPhone, Apple marketing chief Phil Schiller sat down with tech journalist Steven Levy for a wide-ranging interview about the smartphone's past, present, and future. The report first reflects upon the iPhone's lack of support for third-party apps in its first year. The argument inside Apple was split between whether the iPhone should be a closed...
macbook air deals

Deals: Amazon Drops Price of 256GB M1 MacBook Air to New Low of $849.99 ($149 Off)

Friday August 27, 2021 6:16 am PDT by
Amazon today introduced new low prices on the M1 MacBook Air for both 256GB and 512GB storage options. To start, you can get the 256GB model for $849.99, down from an original price of $999.00. Note: MacRumors is an affiliate partner with Amazon. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. Only Silver and Gold are...
iCloud General Feature

iCloud+'s New Custom Email Domain Feature Now Available in Beta

Wednesday August 25, 2021 7:48 am PDT by
Starting with iOS 15, iPadOS 15, and macOS Monterey, users with a paid iCloud+ storage plan can personalize their iCloud email address with a custom domain name, such as johnny@appleseed.com, and the feature is now available in beta. iCloud+ subscribers interested in setting up a custom email domain can visit the beta.icloud.com website, select "Account Settings" under their name, and select ...
iPhone 13 Dummy Thumbnail 2

Kuo: iPhone 13 to Feature LEO Satellite Communications to Make Calls and Texts Without Cellular Coverage

Sunday August 29, 2021 7:39 am PDT by
The iPhone 13 will feature low earth orbit (LEO) satellite communication connectivity to allow users to make calls and send messages in areas without 4G or 5G coverage, according to the reliable analyst Ming-Chi Kuo. In a note to investors, seen by MacRumors, Kuo explained that the iPhone 13 lineup will feature hardware that is able to connect to LEO satellites. If enabled with the relevant...
maxresdefault

New MacBook Pro Models Coming at WWDC, Suggests Leaker

Monday May 24, 2021 1:27 pm PDT by
New MacBook Pro models are coming at WWDC, according to leaker Jon Prosser who has a mixed track record when it comes to predicting Apple's plans. Subscribe to the MacRumors YouTube channel for more videos. Prosser provided no additional information, but there are new 14 and 16-inch MacBook Pro models in the works. The new MacBook Pros will feature the most radical redesign to the MacBook Pro ...
omg lightning cable comparison

Security Researcher Develops Lightning Cable With Hidden Chip to Steal Passwords

Thursday September 2, 2021 6:59 am PDT by
A normal-looking Lightning cable that can used to steal data like passwords and send it to a hacker has been developed, Vice reports. The "OMG Cable" compared to Apple's Lightning to USB cable. The "OMG Cable" works exactly like a normal Lightning to USB cable and can log keystrokes from connected Mac keyboards, iPads, and iPhones, and then send this data to a bad actor who could be over a...
ted lasso notchless phone

No, That Notchless iPhone Spotted in 'Ted Lasso' Isn't the iPhone 13

Tuesday August 31, 2021 2:15 am PDT by
Recent sightings of a notchless iPhone in highly popular Apple TV+ comedy "Ted Lasso" have led to sensational headlines suggesting this is a canny bit of product placement on Apple's part and that the iPhone 13 will be notchless. In actuality – and this could go without saying – the phone in question is very likely just showing a poorly superimposed display added in post-production. Notchless ...
calculatorapp

iOS 11 Bug: Typing 1+2+3 Quickly in the Calculator App Won't Get You 6

Tuesday October 24, 2017 2:03 pm PDT by
A bug in the built-in Calculator app in iOS 11 is getting some major attention this week, despite the fact that it's been around since iOS 11 was in beta testing. At issue is a calculator animation that causes some symbols to be ignored when calculations are entered in rapid succession. You can try it for yourself: Type 1+2+3 and then the equals sign into the Calculator app quickly. Due to...