Apple Seeds Second Beta of macOS Sierra 10.12.5 to Developers

Apple today seeded the second beta of an upcoming macOS Sierra 10.12.5 update to developers, nearly two weeks after seeding the first beta and two weeks after releasing macOS Sierra 10.12.4, which introduced Night Shift for the Mac.

macOS Sierra 10.12.5 can be downloaded through the Apple Developer Center or through the Software Update mechanism in the Mac App Store.

macOS 10
According to the release notes accompanying the beta, the update "improves the stability, compatibility, and security of your Mac."

Because Apple's release notes don't often provide much insight into what's included in new beta software, we don't yet know what features or bug fixes might be included in 10.12.5.

Nothing notable was discovered in the first beta, but should new features be discovered in the second macOS Sierra 10.12.5 beta, we'll update this post.

Related Forum: macOS Sierra

Popular Stories

iPhone SE 4 Vertical Camera Feature

iPhone SE 4 Rumored to Use Same Rear Chassis as iPhone 16

Friday July 19, 2024 7:16 am PDT by
Apple will adopt the same rear chassis manufacturing process for the iPhone SE 4 that it is using for the upcoming standard iPhone 16, claims a new rumor coming out of China. According to the Weibo-based leaker "Fixed Focus Digital," the backplate manufacturing process for the iPhone SE 4 is "exactly the same" as the standard model in Apple's upcoming iPhone 16 lineup, which is expected to...
iPhone 16 Pro Sizes Feature

iPhone 16 Series Is Just Two Months Away: Everything We Know

Monday July 15, 2024 4:44 am PDT by
Apple typically releases its new iPhone series around mid-September, which means we are about two months out from the launch of the iPhone 16. Like the iPhone 15 series, this year's lineup is expected to stick with four models – iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max – although there are plenty of design differences and new features to take into account. To bring ...
iphone 14 lineup

Cellebrite Unable to Unlock iPhones on iOS 17.4 or Later, Leak Reveals

Thursday July 18, 2024 4:18 am PDT by
Israel-based mobile forensics company Cellebrite is unable to unlock iPhones running iOS 17.4 or later, according to leaked documents verified by 404 Media. The documents provide a rare glimpse into the capabilities of the company's mobile forensics tools and highlight the ongoing security improvements in Apple's latest devices. The leaked "Cellebrite iOS Support Matrix" obtained by 404 Media...
tinypod apple watch

TinyPod Turns Your Apple Watch Into an iPod

Wednesday July 17, 2024 3:18 pm PDT by
If you have an old Apple Watch and you're not sure what to do with it, a new product called TinyPod might be the answer. Priced at $79, the TinyPod is a silicone case with a built-in scroll wheel that houses the Apple Watch chassis. When an Apple Watch is placed inside the TinyPod, the click wheel on the case is able to be used to scroll through the Apple Watch interface. The feature works...
bsod

Crowdstrike Says Global IT Outage Impacting Windows PCs, But Mac and Linux Hosts Not Affected

Friday July 19, 2024 3:12 am PDT by
A widespread system failure is currently affecting numerous Windows devices globally, causing critical boot failures across various industries, including banks, rail networks, airlines, retailers, broadcasters, healthcare, and many more sectors. The issue, manifesting as a Blue Screen of Death (BSOD), is preventing computers from starting up properly and forcing them into continuous recovery...
New MacBook Pros Launching Tomorrow With These 4 New Features 2

M5 MacBook Models to Use New Compact Camera Module in 2025

Wednesday July 17, 2024 2:58 am PDT by
Apple in 2025 will take on a new compact camera module (CCM) supplier for future MacBook models powered by its next-generation M5 chip, according to Apple analyst Ming-Chi Kuo. Writing in his latest investor note on unny-opticals-2025-business-momentum-to-benefit-509819818c2a">Medium, Kuo said Apple will turn to Sunny Optical for the CCM in its M5 MacBooks. The Chinese optical lens company...

Top Rated Comments

xflashx Avatar
95 months ago
It would be reallyyyy nice if they could release a detailed change-log for once other than "this update improves stability" bla bla so we know what to expect or what to look out for..
Score: 14 Votes (Like | Disagree)
MikhailT Avatar
95 months ago
It would be reallyyyy nice if they could release a detailed change-log for once other than "this update improves stability" bla bla so we know what to expect or what to look out for..
I agree, that's one of the reasons why I love the team running Safari Technology Preview, they do great release notes. I wish Apple'd do the same for all of their releases.
Score: 9 Votes (Like | Disagree)
cult hero Avatar
95 months ago
10.12.4 was a big deal for me. A lot of issues I've had with the Touch Bar and Thunderbolt 3 appears to have gone away. I had griped that the 2016 MBP was the most unstable Mac I have owned since the switch to Intel (that was pretty bumpy early on) each new release of Sierra, 10.12.4 in particular, has improved things.

* No more randomly vanishing portions of the Touch Bar. (I was starting to think I had bad hardware.)
* No more sleep/way system crashes while connected to Thunderbolt 2 or 3 devices.
* Far less application crashing.

As others have stated, I wish they would be more detailed in their release notes.
Score: 9 Votes (Like | Disagree)
MrGuder Avatar
95 months ago
It would be reallyyyy nice if they could release a detailed change-log for once other than "this update improves stability" bla bla so we know what to expect or what to look out for..
Exactly, we don't need any security info but they need to be more transparent on what the specific fixes would be. I mean Apple fixing a bug or glitch is a good thing why hide it under a general broad statement, be more specific and transparent.
Score: 4 Votes (Like | Disagree)
gsmornot Avatar
95 months ago
Exactly, we don't need any security info but they need to be more transparent on what the specific fixes would be. I mean Apple fixing a bug or glitch is a good thing why hide it under a general broad statement, be more specific and transparent.
I would like this with all updates including app updates. So often they say bug fixes and thats all.
Score: 3 Votes (Like | Disagree)
justperry Avatar
95 months ago
No, at least not for me - Retina 4K iMac and the latest macOS update VASTLY improved the overall speed and snappiness of the OS.

iOS no difference, which is a good thing as it runs beautifully as is on my iPad Mini 4.

That's what betas and reviewer testing's for - reviewers who download the latest and report in. But I get where you're coming from, sometimes it is a bit iffy not knowing what will and won't be improved etc.
This, and iOS flies since the new file System.:)
Score: 3 Votes (Like | Disagree)