Apple Seeds Second OS X 10.11.6 El Capitan Beta to Developers - MacRumors
Skip to Content

Apple Seeds Second OS X 10.11.6 El Capitan Beta to Developers

by

Apple today seeded the second beta of an upcoming OS X 10.11.6 El Capitan update to developers for testing purposes, two weeks after releasing the first OS X 10.11.6 beta and three weeks after the public release of OS X 10.11.5.

The OS X 10.11.6 update, build 15G12a, 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, appears to focus mainly on performance improvements and bug fixes. According to Apple's release notes for the first beta, OS X 10.11.6 improves the stability, compatibility, and security of Macs.

No outward-facing bug fixes or changes were found in the first beta but we'll update this post if any new features are discovered in the second beta.

Tag: OS X 10.11.6
Related Forum: OS X El Capitan

Popular Stories

iPhone Handoff Feature

iOS 27 Introduces New 'iPhone Handoff' Feature

Wednesday September 2, 2026 12:35 pm PDT by
Apple has added a new "iPhone Handoff" feature to iOS 27 that will allow you to switch between two iPhones while using the same phone number on each device. This functionality was briefly mentioned during the WWDC 2026 keynote in June, on a slide that listed hundreds of new features coming in iOS 27 and corresponding software updates, but Apple never shared any further details at the time. ...
Read Full Article • 161 comments
Dynamic Island iPhone 18 Pro Feature

iPhone 18 Pro Prices Estimated Ahead of Apple Event Next Week

Thursday September 3, 2026 3:41 am PDT by
Less than a week before Apple debuts new iPhone 18 Pro models, research firm TrendForce has estimated the prices of the devices based on the latest hardware cost environment. TrendForce's price estimates compared to last year's models look like this: Model Starting Price Model Starting Price Change iPhone 17 Pro $1,099 iPhone 18 Pro $...
Read Full Article • 117 comments
Apple Foldable Thumb

iPhone Ultra's Very High Price and Features Revealed in New Report

Thursday September 3, 2026 7:33 am PDT by
Ahead of Apple's event on Wednesday, September 9, where it is expected to unveil its first-ever foldable iPhone, Taiwanese research firm TrendForce today outlined the device's estimated price range, features, and some other key details. In the U.S., TrendForce estimated that the foldable iPhone will have a starting price of $2,099 to $2,299 and said the highest-end configurations could...
Read Full Article • 305 comments

Top Rated Comments

L
LarryJW
134 months ago
My sense is iOS, OSx, WatchOS, TvOS updates are in part, being rewritten in Swift. New Xcode development tools and improvement in Swift itself are part of Apple's development efforts going forward.

If my suggestion is true, this is a big deal -- a really big deal with the potential of exponential improvements in functionality, stability and cross-OS support.
Score: 2 Votes (Like | Disagree)
T'hain Esh Kelch Avatar
T'hain Esh Kelch
134 months ago
[doublepost=1465286555][/doublepost]
That doesn't specify anything. Those are minors.
Ah, so you like an OS full of bugs. Got it.
[doublepost=1465286625][/doublepost]
My sense is iOS, OSx, WatchOS, TvOS updates are in part, being rewritten in Swift. New Xcode development tools and improvement in Swift itself are part of Apple's development efforts going forward.

If my suggestion is true, this is a big deal -- a really big deal with the potential of exponential improvements in functionality, stability and cross-OS support.
Highly unlikely. There's no incitament for Apple for rewriting those things in Swift, as it is still a language under strong development.
Score: 1 Votes (Like | Disagree)
P
pickaxe
134 months ago
El Capitan keeps getting updated, but there are at least 3 major bugs, two of them VERY major (and have been reported by several users here independently) that I've reported and confirmed with Apple, but they've not been fixed.

So if these updates have zero user-facing changes and don't fix the showstopping stuff, what are they for? Is it to give the illusion that Apple is focusing their attention and resources on OS X? Because based on the last few years, I really doubt it.
Score: 1 Votes (Like | Disagree)
K
KPOM
134 months ago
For 2016 MacBooks, it resolves the issue in the original 10.11.6 build where certain USB 3.1 devices would not mount. It was an issue in the 10.11.5 beta, fixed in the final 10.11.5 build, but reverted in the 10.11.6 original beta.
Score: 1 Votes (Like | Disagree)
L
lunarworks
134 months ago
Well yeah.. Nothing is perfect but I mean was there something huge that occurred with .5 that they needed to address? Or is this just another maintenance?
I'm guessing security and maintenance.

Plus, it looks like it's going to line-up with WWDC, so maybe something is hidden in there.
Score: 1 Votes (Like | Disagree)
H
H2SO4
134 months ago
I hope it fixes my wifi issue! :rolleyes::rolleyes:
So does Tim Cook.
Score: 1 Votes (Like | Disagree)
Read All Comments