Following today's jam-packed media event in San Francisco, Apple has seeded the golden master (GM) version of OS X 10.11 El Capitan to developers. The golden master represents the final version of OS X El Capitan that will be released to the public on Wednesday, September 30.

The update, build number 15A282b, is available through the software update mechanism in the Mac App Store and through the Apple Developer Center.

os_x_el_capitan_roundup
It is not clear if the OS X 10.11 GM will add any new outward-facing changes to El Capitan, as many of the prior betas have focused on under-the-hood performance improvements and bug fixes to optimize the operating system ahead of its public release.

During the beta testing period, Apple seeded eight betas of OS X El Capitan to both developers and public beta testers. The final beta, beta 8, was seeded two weeks ago, on August 31.

As an update complementary to OS X Yosemite, OS X El Capitan builds on the features introduced last year. Behind-the-scenes improvements in El Capitan make a number of apps and processes on the Mac faster, and the introduction of Metal makes system-level graphics rendering 40 percent more efficient.


El Capitan introduces a new system-wide font, a revamped Mission Control feature, a split-view feature for using two full-screen apps at once, deeper functionality for Spotlight, and improvements to Safari that include Pinned Sites and a universal mute button.

OS X El Capitan will be released to the public on September 30.

Update: Apple's pulled the OS X 10.11 El Capitan GM, and it's no longer available for download. In the Developer Center, it's listed as "Coming Soon."

Update 2: The El Capitan GM is once again available for download. Apple has also begun sending emails to public beta testers letting them know the GM is now available for beta testers in addition to developers.

Top Rated Comments

Glassed Silver Avatar
76 months ago
Release on September 30? Can't believe that. iOS 9 will be released on September 16, which would mean I can't read the notes taken in iOS 9 from September 16 to September 30 on my mac? That would be.. ugly. So I suspect Apple will release the new OS X together with the new iOS
You'll be surprised to hear that last time around the upgrades released one month apart.

Glassed Silver:mac
Score: 2 Votes (Like | Disagree)
realeric Avatar
76 months ago
GM is not the final version but a candidate of the final version. Apple sometimes release GM2...
Score: 2 Votes (Like | Disagree)
Guy Clark Avatar
76 months ago
Running the OS X El Capitan GM now on my mid-2011 iMac.

Performance has never been so good.:)

Snow Yosemite????

OS X El Capitan is undoubtably Yosemite done right:)

The best OS X release since Snow Leopard by a country mile:):):)
Score: 1 Votes (Like | Disagree)
redheeler Avatar
76 months ago
Release on September 30? Can't believe that. iOS 9 will be released on September 16, which would mean I can't read the notes taken in iOS 9 from September 16 to September 30 on my mac? That would be.. ugly. So I suspect Apple will release the new OS X together with the new iOS
The same thing happened last year with people enabling iCloud Drive in iOS 8 and finding they could no longer sync with their Macs. The OS X release was still in October.
Score: 1 Votes (Like | Disagree)
Eorlas Avatar
76 months ago
Question:

May the GM be installed over the latest public beta?
Score: 1 Votes (Like | Disagree)
devinthomas Avatar
76 months ago
I don't see the GM in the app store
Score: 1 Votes (Like | Disagree)

Top Stories

macbook air orange

Apple Developing a Whole New Kind of MacBook Air

Monday June 21, 2021 2:15 am PDT by
Apple is believed to be working on a completely new, high-end version of the MacBook Air, according to recent reports. Bloomberg's Mark Gurman, who often reveals accurate insights into Apple's plans, has repeatedly discussed the company's work on a high-end MacBook Air. Apple analyst Ming-Chi Kuo and leaker Jon Prosser have also referred to a similar MacBook Air model. The high-end...
ios wifi settings

iOS Bug Causes Specific Network Name to Disable Wi-Fi on iPhones

Sunday June 20, 2021 4:15 am PDT by
A wireless network naming bug has been discovered in iOS that effectively disables an iPhone's ability to connect to Wi-Fi. Security researcher Carl Schou found that after joining a Wi-Fi network with the name "%p%s%s%s%s%n" his iPhone's Wi-Fi functionality was left "permanently disabled." Changing a hotspot's SSID did nothing to correct the problem, with even a reboot failing to make a...
purple iphone 12 and 12 mini

iPhone 12 Mini Production Reportedly Ended Earlier Than Expected Due to Relatively Low Sales

Monday June 21, 2021 7:07 am PDT by
Following widespread reports that the iPhone 12 mini has experienced poor sales performance, at least relative to other iPhone 12 models, Taiwanese research firm TrendForce today claimed that production of the device has already ended. According to TrendForce, the iPhone 12 mini "reached End-of-Life ahead of time" during the second quarter of 2021, suggesting that Apple will focus on selling ...
iOS 15 Users Underwhelmed Feature

Users Underwhelmed by iOS 15 and iPadOS 15, Survey Suggests

Monday June 21, 2021 7:17 am PDT by
Users appear to be underwhelmed by Apple's upcoming iOS 15 and iPadOS 15 updates, according to the findings of a new survey by SellCell. The survey asked 3,000 iPhone and iPad users, evenly split between men and women, aged 18 or over in the United States, what they thought of iOS 15, iPadOS 15, and the naming of the upcoming iPhone 13 lineup. Over 50 percent of all of the survey's...
Top Stories 63 Feature

Top Stories: Beats Studio Buds Announced, Apple Watch Series 7 Rumors, and More

Saturday June 19, 2021 6:00 am PDT by
The Apple news cycle started to move beyond WWDC this week, but that doesn't mean there still wasn't a lot to talk about, led by the official debut of the much-leaked Beats Studio Buds that might give us a hint of what to expect for the second-generation AirPods Pro. With no hardware announcements at WWDC, we also took a look at when we might finally see the long-rumored redesigned MacBook...
primeday2020 feature3

Amazon Prime Day: The Best Apple Deals

Monday June 21, 2021 6:15 am PDT by
Amazon's annual Prime Day event has officially kicked off today, beginning 48 hours of discounts, offers, and tons of savings across Amazon's storefront. This includes everything from home electronics to clothing, jewelry, video games, movies, and much more. Note: MacRumors is an affiliate partner with these vendors. When you click a link and make a purchase, we may receive a small payment,...
iOS Spam Calendar Feature

iCloud Users Continue to Be Plagued by Calendar Spam

Monday June 21, 2021 8:51 am PDT by
Despite previous attempts to put the situation at rest, some iCloud users continue to experience spam calendar invitations, causing their calendars to be filled with random events. The situation received widespread coverage in 2016, where Apple said that it was "actively working to address this issue" by "identifying and blocking suspicious senders." Victims are targeted in various ways. The ...
iphone 13 yellow

TrendForce: iPhone 13 Lineup Will Remain Limited to Maximum 512GB of Storage

Monday June 21, 2021 6:33 am PDT by
Apple will likely unveil its next-generation "iPhone 12s" or "iPhone 13" lineup in around two and a half months from now, and ahead of time, Taiwanese research firm TrendForce has outlined its expectations for the devices. A summary of TrendForce's expectations:Apple will unveil four new iPhones in September, including a mini model, a standard model, and two Pro models. September is the...
16 inch macbook pro m2 render

When Can We Expect the Redesigned MacBook Pros Now?

Wednesday June 16, 2021 7:11 am PDT by
With no sign of redesigned MacBook Pro models at this year's WWDC, when can customers expect the much-anticipated new models to launch? A number of reports, including investor notes from Morgan Stanley and Wedbush analysts, claimed that new MacBook Pro models would be coming during this year's WWDC. This did not happen, much to the disappointment of MacBook Pro fans, who have been...
maxresdefault

Video: 20 Annoyances Apple Fixed in iOS 15 and macOS Monterey

Friday June 18, 2021 11:36 am PDT by
With iOS 15 and macOS Monterey, Apple is adding several quality of life improvements, which are designed to address some of the complaints that people have had with these operating systems for years now. Subscribe to the MacRumors YouTube channel for more videos. In our latest YouTube video, we're highlighting some of our favorite "fix" features that address long-running problems in iOS and...