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

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 17 Pro Cosmic Orange

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

Monday December 1, 2025 2:40 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...
Johny Srouji

Apple Chip Chief Johny Srouji Could Be Next to Go as Exodus Continues

Sunday December 7, 2025 10:41 am PST by
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports. Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
Johny Srouji

Apple's Chipmaking Chief Johny Srouji Responds to Report About Him Potentially Leaving

Monday December 8, 2025 9:23 am PST by
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future. "I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman. Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
top stories 2025 12 04a

Top Stories: iOS 26.2 Coming Soon, Apple Execs Depart, and More

Saturday December 6, 2025 6:00 am PST by
You'd expect things to be starting to wind down for the holidays by now, but that doesn't seem to be the case yet in the world of Apple news, with Apple just about ready to release iOS 26.2 and other operating system updates to the public. There was also a flurry of news this week about Apple executive departures, some expected and some not so expected, while we also learned that Apple and...
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 ...

Top Rated Comments

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



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

Attachment Image
Score: 9 Votes (Like | Disagree)
MikhailT Avatar
137 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
137 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
137 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
137 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
137 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)