Apple Seeds Third OS X 10.11.5 El Capitan Beta to Developers and Public Beta Testers

Apple today seeded the third beta of an upcoming OS X 10.11.5 El Capitan update to developers and public beta testers, one week after releasing the second OS X 10.11.5 beta and a month after releasing OS X 10.11.4, the fourth update to the OS X El Capitan operating system. OS X 10.11.5 has been in testing since April 6.

OS X 10.11.5 beta 3 has a build number of 15F28b and can be downloaded through the software update mechanism in the Mac App Store or through the Apple Developer Center (for developers).

elcapitanmacbook
OS X 10.11.5, like prior OS X El Capitan updates, appears to focus on security enhancements, performance improvements, and bug fixes to address issues that have popped up since the release of OS X 10.11.4. No obvious outward-facing changes were discovered in the first two OS X 10.11.5 betas, but we'll update this post if any new features are found in the third beta.

Related Forum: OS X El Capitan

Popular Stories

m5 macbook pro deal

Why You Shouldn't Buy the Next MacBook Pro

Tuesday February 10, 2026 4:27 pm PST by
Apple is planning to launch new MacBook Pro models as soon as early March, but if you can, this is one generation you should skip because there's something much better in the works. We're waiting on 14-inch and 16-inch MacBook Pro models with M5 Pro and M5 Max chips, with few changes other than the processor upgrade. There won't be any tweaks to the design or the display, but later this...
iOS 26

Apple Releases iOS 26.3 and iPadOS 26.3

Wednesday February 11, 2026 10:07 am PST by
Apple today released iOS 26.3 and iPadOS 26.3, the latest updates to the iOS 26 and iPadOS 26 operating systems that came out in September. The new software comes almost two months after Apple released iOS 26.2 and iPadOS 26.2. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. According to Apple's release notes, ...
Apple Logo Zoomed

Apple Expected to Launch These 10+ Products Over the Coming Months

Tuesday February 10, 2026 6:33 am PST by
It has been a slow start to 2026 for Apple product launches, with only a new AirTag and a special Apple Watch band released so far. We are still waiting for MacBook Pro models with M5 Pro and M5 Max chips, the iPhone 17e, a lower-cost MacBook with an iPhone chip, long-rumored updates to the Apple TV and HomePod mini, and much more. Apple is expected to release/update the following products...
iPhone 16e Bottom Crop

Apple Reportedly Unveiling a New iPhone Next Week

Tuesday February 10, 2026 1:51 pm PST by
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld. The report said the iPhone 17e will be announced in a press release on the Apple Newsroom website, so do not expect an event for this device specifically. The iPhone 17e will be a spec-bumped successor to the iPhone 16e. Rumors claim the device will have four key...
Apple Logo Black

Apple Acquires New Database App

Wednesday February 11, 2026 6:44 am PST by
Apple acquired Canadian graph database company Kuzu last year, it has emerged. The acquisition, spotted by AppleInsider, was completed in October 2025 for an undisclosed sum. The company's website was subsequently taken down and its Github repository was archived, as is commonplace for Apple acquisitions. Kuzu was "an embedded graph database built for query speed, scalability, and easy of ...

Top Rated Comments

gsmornot Avatar
128 months ago
Beachballs? Did they fix the beachballs? What about the constant freakin beachballs on every one of my Macs running El Capitan, Apple??? So frustrating.
My beachballs are working fine here. :)
Score: 8 Votes (Like | Disagree)
128 months ago
Anybody know if this fixes the "freezing" issue that a lot of Macs suffer from since the last El Cap update?
Score: 8 Votes (Like | Disagree)
Scary Spice Avatar
128 months ago
Super SMOOOTH™ on all my machines....

Especially the beachball animation. (no more flickering and the pointer INSTANTLY changes to the beachball... not the rude pause of versions past)
Score: 6 Votes (Like | Disagree)
128 months ago
32.1 mb on a 6 plus
You have El Cap on your iPhone? Amazing ;)
Score: 6 Votes (Like | Disagree)
HiRez Avatar
128 months ago
Beachballs? Did they fix the beachballs? What about the constant freakin beachballs on every one of my Macs running El Capitan, Apple??? So frustrating.
Score: 6 Votes (Like | Disagree)
redheeler Avatar
128 months ago
Happy to see this on front page for once. Downloading, 709 MB.
Score: 5 Votes (Like | Disagree)