Apple today seeded the third beta of an upcoming OS X 10.11.6 El Capitan update to developers and public beta testers for testing purposes, two weeks after releasing the second OS X 10.11.6 beta and more than a month after the public release of OS X 10.11.5. OS X 10.11.6 has been in testing since May 23.

The OS X 10.11.6 update can be downloaded through the Apple Developer Center or the Software Update mechanism in the Mac App Store.

elcapitanmacbook
OS X 10.11.6, like OS X 10.11.5 and the El Capitan updates that came before it, focuses mainly on performance improvements and bug fixes rather than outward-facing changes. According to Apple's release notes, the update improves the stability, compatibility, and security of Macs.

No obvious changes or bug fixes were found in the first two betas, but we'll update this post should anything new be discovered in the third beta. Apple has also started testing macOS Sierra, the next-generation Mac operating system set to be released this fall.

Related Forum: OS X El Capitan

Top Rated Comments

navaira Avatar
navaira
124 months ago
OS X 10.11.6, like OS X 10.11.5 and the El Capitan updates that came before it, focuses mainly on performance randomisation and introducing new bugs rather than outward-facing changes.

We wouldn't have it any other way, would we?
Score: 8 Votes (Like | Disagree)
rmeulen Avatar
rmeulen
124 months ago
Have 10.11.6 beta X running on my SSD and experimenting Sierra on SD for the moment. Indeed, with Sierra ready for testing the need to get betas for El Capitan are lowered. Still 10.11.6 is closer to released version so better for day-to-day working environment. So far no issues with the betas on 10.11.6.
Score: 1 Votes (Like | Disagree)
BaltimoreMediaBlog Avatar
BaltimoreMediaBlog
124 months ago
Apple keeps sending notices like, "Please check out bluetooth. We think the latest update will solve your bluetooth issues."

Result: EPIC FAIL. Apple still cannot fix bluetooth from crashing in Yosemite or El Captan after all this time! I get random crashes of the entire bluetooth system, sometimes when plugging an iPhone in, and sometimes for no apparent reason. Sometimes plugging an iPhone in repeatedly reboots the bluetooth chip. Other times, a complete system shutdown is necessary. Some times even rebooting doesn't even reset bluetooth. Btw, I didn't have this problem in Mavericks, so it's highly unlikely it's a hardware problem. It started immediately during one of the Yosemite releases.

God help us all when Bluetooth 5.0 is released. Apple still hasn't figured out 4.0! :(
Score: 1 Votes (Like | Disagree)
BaltimoreMediaBlog Avatar
BaltimoreMediaBlog
124 months ago
This definitely isn't typical Bluetooth behavior in OS X. That your hardware worked and then stopped working some time after you upgraded the operating system is no indication that you are not having a hardware problem. Have you tried running the diagnostic routine on your
computer?
I've read enough of the Bluetooth complaints here and elsewhere to know bluetooth has been an Apple issue for almost 2 years now. System diagnostics shows nothing wrong with my machine. The problem lies with Apple's poor ability to program the older bluetooth chipsets. A Mac Pro doesn't have the same bluetooth chipset as some other 2009 Macs of the same year. I suspect this is the reason Apple has cut off 2009 support. They've never gotten it right for those machines and instead of fixing it, they've decided to just move on and pretend the problem didn't even exist.
Score: 1 Votes (Like | Disagree)
MacsRgr8 Avatar
MacsRgr8
124 months ago
Now we can play with the macOS Sierra betas, this beta has lost my interest.:D

Of course, I understand the need for true developers!
Score: 1 Votes (Like | Disagree)
Read All Comments

Popular Stories

iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
Read Full Article • 90 comments
apple beta 26 lineup

Apple Leak Confirms Work on Foldable iPhone, AirTag 2, and Dozens More Devices

Monday December 15, 2025 2:05 pm PST by
Last week, details about unreleased Apple devices and future iOS features were shared by Macworld. This week, we learned where the information came from, plus we have more findings from the leak. As it turns out, an Apple prototype device running an early build of iOS 26 was sold, and the person who bought it shared the software. The OS has a version number of 23A5234w, and the first...
Read Full Article • 68 comments
Apple Logo Top Half

Early iOS 26 Software Leak Uncovers Dozens of Upcoming Apple Features

Monday December 15, 2025 3:05 pm PST by
Software from an iPhone prototype running an early build of iOS 26 leaked last week, giving us a glimpse at future Apple devices and iOS features. We recapped device codenames in our prior article, and now we have a list of some of the most notable feature flags that were found in the software code. In some cases, it's obvious what the feature flags are referring to, while some are more...
Read Full Article • 29 comments
Apple Foldable Thumb

Leak Reveals Foldable iPhone Details

Monday December 15, 2025 9:09 am PST by
The first foldable iPhone will feature a series of design and hardware firsts for Apple, according to details shared by the Weibo leaker known as Digital Chat Station. According to a new post, via machine translation, Apple is developing what the leaker describes as a "wide foldable" device, a term used to refer to a horizontally oriented, book-style foldable with a large internal display....
Read Full Article • 147 comments
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 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 >...
Read Full Article • 111 comments
iOS 26

iOS 26.3 Beta 1 Features: What's New So Far

Monday December 15, 2025 4:23 pm PST by
Apple is testing iOS 26.3, the next version of iOS 26 that will launch around January. Since iOS 26.3's testing is happening over the holidays, it is a smaller update with fewer features than we've seen in prior betas. We've rounded up what's new so far, and we'll add to our list with subsequent betas if we come across any other features. Transfer to Android Apple is making it simpler...
Read Full Article • 28 comments
iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
Read Full Article • 82 comments
airpods max 2024 colors

AirPods Max 2 Likely to Offer These 10 New Features

Monday December 15, 2025 7:41 am PST by
Apple released the AirPods Max on December 15, 2020, meaning the over-ear headphones launched five years ago today. While the AirPods Max were updated with a USB-C port and new color options last year, followed by support for lossless audio and ultra-low latency audio this year, the headphones lack some of the features that have been introduced for newer generations of the regular AirPods and the ...
Read Full Article • 34 comments