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Apple Seeds Third Beta of macOS Sierra 10.12.5 to Developers and Public Beta Testers

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

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


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

Apple's release notes don't often provide a lot of insight into what's included in new beta software, so we don't know what features or bug fixes might be included in the 10.12.5 update.

No notable changes or major bug fixes were discovered in the first two betas, but should anything pop up in the third macOS Sierra 10.12.5 beta, we'll update this post.

Update: Beta 3 is also out for public beta testers.

Related Roundup: macOS Sierra


Top Rated Comments

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1 week ago

Quick question: Do these beta updates really need to be front page news?

Unless they reveal something incredible (like a hidden new Mac model) they're not really that newsworthy to the vast majority of people.


Quick answer: Yes.

I like to see it on the front page to inform me that the new betas are available.

Sometimes I see other news articles on the front page that are not relevant to me and I just skip them. I don't then complain about their existence merely because they are not relevant to me.
Rating: 15 Votes
1 week ago
I appreciate betas being announced on the front page. Is it really so offensive to just skip by it if you aren't interested?
Rating: 8 Votes
1 week ago
"improves the stability, compatibility, and security of your Mac."

This is so generic, why can't they just say what it fixes? We don't need security info notes but other specific info for the user would be good. Time for a change in language?
Rating: 4 Votes
1 week ago

Quick question: Do these beta updates really need to be front page news?

Unless they reveal something incredible (like a hidden new Mac model) they're not really that newsworthy to the vast majority of people.

I really don't mind, just as long as they don't do something like putting iOS on the front page and pushing MacOS to the Mac Blog.
Rating: 4 Votes
1 week ago
Quick question: Do these beta updates really need to be front page news?

Unless they reveal something incredible (like a hidden new Mac model) they're not really that newsworthy to the vast majority of people.
Rating: 4 Votes
1 week ago

Quick question: Do these beta updates really need to be front page news?

Unless they reveal something incredible (like a hidden new Mac model) they're not really that newsworthy to the vast majority of people.


Well, there are not many news from Apple worthy of anything, so why not to put it on the front page since there is nothing else to talk about.
Rating: 3 Votes
1 week ago

Wouldn't you see them pop-up as an update on the App Store, yes?


But I tend to look at tech news sites like macrumors more often than the mac app store or apple's developer downloads page. I think the same could be said of most developers too.

Of all the times I first became aware of new betas the vast majority were via tech news sites like macrumors.

Of course that same information is available via the mac app store and apple's developer downloads page, but it probably would take more time before I became aware of it that way as I don't look at those quite as aften as tech news sites.
Rating: 2 Votes
1 week ago
Available for public beta testers as well.
Rating: 1 Votes
1 week ago
Safari has been very buggy, pics and links sometimes don't appear at all, even with all extensions turned off.
Rating: 1 Votes
1 week ago

What I personally REALLY want to know is whether this update will finally fix all the problems with PDFs. That is the one thing holding me back from updating to Sierra and until I hear conclusively that PDFKit is up to standard I'm not taking the jump. So PLEASE pay more attention to this issue.

I'm also in this boat, having enough "business class" "Pro" clients that work daily with PDF workflows. I sent a message to Jason Snell, et al, after the 10.12.4 release, to see if that crowd had done any further testing since their Feb article more-publically exposing the PDFKit problems, but the response was "no update yet" (mostly because no one has done all the follow-up testing to confirm). Given the public outing on this, I'd have liked to have seen Apple more publicly acknowledge the problem and more directly admit status. I had been dealing with these kinds of weird PDF issues as far back as 10.10, and it has been infuriating. Breaking stuff that worked great isn't, IMHO, a good move for Apple, especially so when the ONLY reason is "so macOS can be like iOS". And eating user data in PDFs can have some pretty problematic consequences (legal contracts, health care/tax forms, etc) for unsuspecting users.
Rating: 1 Votes

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