Apple Seeds Second OS X 10.11 El Capitan Beta to Developers

Apple today released the second beta of OS X 10.11 El Capitan to developers for testing purposes, just over two weeks after unveiling the new operating system at its 2015 Worldwide Developers Conference. Any new changes found in the second El Capitan beta will be detailed below.

The update, build 15A204h, is available through the software update mechanism in the Mac App Store and through the Apple Developer Center. Apple has also released OS X Server 5.0 beta 2.

os_x_el_capitan_roundup
OS X El Capitan largely builds on the features introduced with OS X Yosemite, focusing on improving performance and user experience. Behind-the-scenes improvements in El Capitan have made a number of apps and processes on the Mac much faster, and the introduction of Metal makes system-level graphics rendering 40 percent more efficient.

Along with a new systemwide font, El Capitan includes a revamped Mission Control feature, a new Split View feature for using two full-screen apps at once, deeper functionality for Spotlight, and several new features for Safari, including Pinned Sites for housing frequently-visited websites and a universal mute button that quiets all tabs.

Mail's been updated with new iOS-style gestures and Smart Suggestions, and Photos, Notes, and Maps have also gained small improvements.

OS X 10.11 El Capitan is currently only available to registered developers, but Apple plans to offer a public beta of the software in July. Following testing, El Capitan will see a final release in the fall of 2015.

Related Forum: OS X El Capitan

Popular Stories

Apple Logo Spotlight

Report: Apple to Launch These New Products in 2026

Sunday November 2, 2025 5:34 am PST by
Apple is planning to launch at least 15 new products in 2026, according to Bloomberg's Mark Gurman. Gurman outlined what to expect from Apple in 2026 in the latest edition of his "Power On" newsletter. He said the company is heading "into one of its most pivotal years in recent memory," with the rollout of major new Apple Intelligence features, intense regulatory pressure on the App Store,...
ios 26 1 slide to stop

iOS 26.1 Brings Back 2007 Feature in New Way

Friday October 31, 2025 1:40 pm PDT by
The upcoming iOS 26.1 update includes a small but helpful change for iPhones, and it could prevent you from running late to something important. Specifically, when an alarm goes off in the Clock app, there is a new "slide to stop" control on the screen for turning off the alarm. On previous iOS 26 versions, there is simply a large "stop" button, which could be accidentally tapped. The new ...
Apple Intelligence General Feature 2

New Version of Siri to 'Lean' on Google Gemini

Sunday November 2, 2025 6:06 am PST by
In his "Power On" newsletter, Bloomberg's Mark Gurman today provided an update on the status of Apple Intelligence and the plans for it in 2026. Apple is still planning to roll out its revamped version of Siri around March of next year. The release should be accompanied by the release of a new smart home display product with speaker-base and wall-mount options. A new Apple TV and HomePod...
HomePod mini and Apple TV

New Apple TV and HomePod Mini Likely Launching Soon

Sunday November 2, 2025 5:49 am PST by
A new Apple TV and HomePod mini could launch as soon as this month, Bloomberg's Mark Gurman today suggested. In today's "Power On" newsletter, Gurman said that Apple retail stores are planning an overnight refresh on the evening of November 11, where changes will be made after closing, such as refreshing displays and placing new products for the following day. The timing of the overnight...
Apple Foldable Thumb

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

Friday October 31, 2025 8:52 am PDT 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. Below, we've collated an updated set of key details that have been leaked about Apple's foldable iPhone so far. Ove...
M5 MacBook Pro

Waiting for New Macs? Apple Just Shared Bad News

Friday October 31, 2025 7:32 am PDT by
Apple has just given a strong indication that it will not be releasing any additional new Macs for the remainder of the year. Apple's CFO Kevan Parekh dropped the hint during the company's earnings call on Thursday:On Mac, keep in mind, we expect to face a very difficult compare against the M4 MacBook Pro, Mac mini, and iMac launches in the year-ago quarter.Parekh essentially gave a heads up ...
iOS 26

Apple Releases iOS 26.1 With Liquid Glass Toggle, Slide to Stop Alarm, New Apple Intelligence Languages and More

Monday November 3, 2025 1:11 pm PST by
Apple today released iOS 26.1, the first major update to the iOS 26 operating system that came out in September, iOS 26.1 comes over a month after iOS 26 launched. ‌iOS 26‌.1 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings > General >...
iOS 26

6 New Things Your iPhone Can Do in iOS 26.1

Wednesday October 29, 2025 4:22 am PDT by
Apple is about to drop iOS 26.1, the first major point release since iOS 26 was rolled out in September, and there are at least six notable changes and improvements to look forward to. We've rounded them up below. Apple has already provided developers and public beta testers with the release candidate version of iOS 26.1, which means Apple will likely roll out the update to all compatible...
Early Black Friday Deals 2

The Best Early Black Friday Apple Deals

Sunday November 2, 2025 10:04 am 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 ...

Top Rated Comments

AngerDanger Avatar
135 months ago
Perhaps you'd prefer its inverse, @redheeler:



[SPOILER="1024x1024 verson"]
[/SPOILER]

Attachment Image
Score: 9 Votes (Like | Disagree)
MikhailT Avatar
135 months ago
anyone could check the graphic performance improvement? i have iMac 27 5k and expose is dreadfully slow in yosemite. thanks in advance!
Expose or Mission Control pretty much got an overhaul and is quick on all Macs, they changed how it is rendered. Even the weak rMB saw major improvements.

I have 5K iMac and I can say it is a huge improvement from Yosemite.
Score: 4 Votes (Like | Disagree)
theSeb Avatar
135 months ago
I thought these updates were only for us devs... first thing I do is open up Xcode to continue my project, only to see that it doesn't work with El Capitan Beta 2 anymore.

"No problem", I said to myself, "there's a 6.4 beta that should work fine". Except it doesn't.

Xcode 7 isn't an option because I consider releasing my game within the next 2 weeks and if I convert it to Swift 2.0 it'll get rejected because it's a beta language that has been compiled with a beta compiler.

Seriously ? o_O

Luckily, if you Show the Package Contents of Xcode.app, then go under /MacOS/, you can start Xcode 6 through the terminal. Not like they bothered telling us or anything ........
Yes, seriously. Please tell me that you are not really running a pre-release BETA operating system on your "production" machine?

I don't get the shock and indignation. You should not be running beta software on your production system. Beta software is for testing in a VM, or another computer. Why would you install a beta operating system if you're actively working on an application that will be released in the next two weeks? That's very dangerous.

Yes, these are previews are for devs. They are for devs to get their apps working with the latest SDKs and operating systems so that they are ready WHEN the new versions of the operating systems are out of beta and released to the public. They are not there to continue working on applications that you're planning to release before the next operating system is released. This is not rocket science to understand.
Score: 4 Votes (Like | Disagree)
redheeler Avatar
135 months ago
I'm assuming it's the Apple Watch San Francisco one.
It's not quite the same.

Score: 4 Votes (Like | Disagree)
Rudy69 Avatar
135 months ago
Could the 3 OS updates just have been put in one article?
3 articles = ~2-3 times the views!
Score: 4 Votes (Like | Disagree)
luisfelipesv Avatar
135 months ago
I always see developers complaining about non developers who install DP on their devices, saying that it's not right for them to download betas since betas are for developers, while that's true, they have the freedom to do that and I don't see that as a bad thing, I think they are just curious about the new things and curiosity it's a good thing, maybe curiosity is what lead most of developers to become that, maybe downloading betas without being a developer could be their first step to become one.
Score: 3 Votes (Like | Disagree)