Apple Seeds Second OS X 10.11.6 El Capitan Beta to Developers
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.

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.
Popular Stories
In June, Apple announced iOS 17 with a wide range of new features and changes for the iPhone. Following over three months of beta testing, the free software update will be released this Monday, September 18 for the iPhone XS and newer. Below, we have recapped 10 key features coming to the iPhone with iOS 17, with additional features coming later this year. The update should be released to...
All of the iPhone 15 and iPhone 15 Pro models feature a new battery health setting that prevents the devices from charging beyond 80% at all times when enabled, as confirmed by The Verge's Allison Johnson during a Q&A session today. The new setting is separate from the pre-existing Optimized Battery Charging feature on iPhones, which intelligently delays charging past 80% until a more...
Apple today released iOS 17 and iPadOS 17, the latest operating system updates that are designed for the iPhone and iPad. As with all of Apple's software updates, iOS 17 and iPadOS 17 are available for free. iOS 17 is compatible with the iPhone XR/iPhone XS and later, while iPadOS 17 runs on the iPad mini 5 and later, the iPad 6 and later, iPad Air 3 and later, the second-generation 12.9-inch...
With the release of a new operating system, there are multiple features and design elements for developers to adopt. Now that iOS 17 is out, many major apps are getting interesting updates today, which we've rounded up below. watchOS 10 also has a new design language, so there are a range of Apple Watch updates to check out too. Flighty (Free, Premium Subscription) Popular flight tracking...
Top Rated Comments
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.
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.
+1 for increased SMOOOTHNESS™
[doublepost=1465286625][/doublepost] Highly unlikely. There's no incitament for Apple for rewriting those things in Swift, as it is still a language under strong development.
Plus, it looks like it's going to line-up with WWDC, so maybe something is hidden in there.