Juli Clover:
Apple today provided developers and public beta testers with the release candidate of macOS Tahoe 26 for testing purposes, with the RC coming after nine rounds of betas.
Who can tell from the release notes what’s changed in the last few builds?
Steve Troughton-Smith:
I don’t honestly know why Apple provides OS release notes to developers, because it doesn’t remotely reflect either the known issues or the fixes/changes build to build. It’s like some tiny subset of the issues known internally before WWDC, and whether they fixed them or not since (spoiler: most of the bugs that were mentioned in the release notes doc in June are apparently still present)
Juli Clover:
iOS 26, iPadOS 26, macOS Tahoe 26, tvOS 26, watchOS 26, and visionOS 26 will be released to the public on Monday, September 15, Apple announced during today’s “Awe Dropping” Apple event.
Time to start taking screenshots for my app releases.
Marcin Krzyzanowski:
I was not prepared for macOS 26 on Sep 15.
it is not ready. it is definitely not ready. please don’t ship it like that.
just yesterday, I had a laugh at how SwiftUI layout is broken on macOS 26, in entirely new ways. But I assumed they still have few months to fix it.
Steve Troughton-Smith:
The OSes included in the Xcode 26 release candidate are ‘basically’ the same as the beta 9 seeds. I think a huge pile of bugs are about to ship; macOS and visionOS especially are in a really bad state right now.
Ahnaf Mahmud:
yep found some last minute bugs… the textbox is literally hidden on Mac Image Playground and look at how the sidebar behaves when running an iOS app on macOS lol (in my next reply), sadly couldn’t test those on a VM
Mario Guzmán:
So yeah, #macOSTahoe killed all my apps.
PDX Transit for macOS, in the 7 years as an #AppKit app, the toolbar & sidebars worked perfectly. Now the toolbar just gets fucked up when you switch tabs AND the inspector sidebar now fails to remember its position between launches.
As for all my Music-related apps. They no longer work because Apple Music sends far less info in the NSDistributedNotificationCenter dictionary.
So yeah, I’m done. I am taking these down. I’m not having fun anymore.
Mario Guzmán:
And also this. All of my #AppKit bugs I’ve been reporting since Beta 1 were mostly not addressed and around Beta 6 or 7[…] No way will I take the hit for Apple’s bugs. They worked fine for the better part of 7/8 years and broke as of #macOSTahoe beta 6 or 7. I logged bugs in Feedback app.
John Siracusa:
Even after using Tahoe for months, I’m still regularly struck by something on my screen that I instinctively interpret as some kind of graphical glitch only to realize that it’s “working as intended” and that someone thought this design was a good idea.
For example, check out the weird smudges at the top of this Finder window. Surely some kind of error, right? But then you notice the text competing with the window title. And then you connect the text to the smudges and realize what’s going on.
This is not a “staged” screenshot, BTW. This is something that organically appeared on my screen while using my Mac with Tahoe RC, and my legitimate reaction was to do a double-take because it looked like an error to me.
Zac Hall:
macOS Tahoe will be the first release to support Repair Assistant, adding the ability to install calibration data to complete repairs.
[…]
For Mac repairs through the self service repair program, this will allow used parts and previously replaced parts that were not calibrated to be calibrated to ensure the best reliability and security standards are met.
Previously:
Apple Self Service Repair Design Liquid Glass Mac macOS Beta macOS Tahoe 26 SwiftUI
Apple (downloads):
Xcode 26 RC includes SDKs for iOS 26, iPadOS 26, tvOS 26, watchOS 26, macOS Tahoe 26, and visionOS 26. The Xcode 26 RC release supports on-device debugging in iOS 16 and later, tvOS 16 and later, watchOS 8 and later, and visionOS. Xcode 26 RC requires a Mac running macOS Sequoia 15.6 or later.
This is up from beta 7, which worked on macOS 15.5. Other than that, it didn’t seem to break anything with my projects. Again, it’s really hard to see from the release notes what’s new in this build.
Tony Arnold:
Xcode 26.0 RC 1 also cannot compile my asset catalog + icon composer icon.
I filed feedback (FB20183399), but this feels completely pointless. As far as I can tell, there’s no workaround so I cannot ship an update using Xcode 26.
Craig Hockenberry:
Incredibly, the concentric corner APIs don’t have the correct radii on the new iPhone models.
Previously:
Asset Catalog (.car) Mac macOS 15 Sequoia macOS Tahoe 26 Programming Simulator Xcode
Mitchel Broussard:
Apple today announced the newest generation of iPhone with the iPhone Air, iPhone 17, and iPhone 17 Pro. Alongside these devices, there’s a bunch of new compatible accessories, including TechWoven Cases, Clear Cases, Crossbody Straps, and Silicone Cases, all of which we’re recapping below.
Dan Moren:
There were no doubt some shouts of joy when Apple mentioned it had a new version of its MagSafe Battery, but if you want one of those to boost your phone’s longevity, be aware: it’s an iPhone Air exclusive.
Previously:
iPhone iPhone 17 iPhone Air iPhone Case MagSafe
Jordan Golson:
10:01 am: We start with a quote: “Design is not just what it looks like and feels like. Design is how it works.” — Steve Jobs
How many of us groaned at that? This has got to be the worst invocation of Steve Jobs’ memory given how this year’s redesign seems to be pretty much the opposite of that ideal.
Dan Moren:
Always good when the keynote stream starts with me doing a spit take.
M.G. Siegler:
I’m not really sure why Apple chose to open their 2025 iPhone event with the famous “Design is not just what it looks like and feels like. Design is how it works.” quote. It preceded a video focused on design elements of Apple products that I guess was meant to show case how well all their products work together? It was a nice little video. But overall, I don’t think this year was more about design than any other Apple keynote.
Dave Wood:
I’m still shocked Apple completely glossed over #iOS26 / #LiquidGlass. The event was short, so I bet they had planned for 30 minutes on it and were too embarrassed to even show it.
Adam Overholtzer:
Imagining constantly repeating a quote without ever taking its meaning to heart.
rasputin:
They’re trolling us
Rebecca Sloane:
I feel like we were watching in real time Tim Cook convince himself that liquid glass is the right direction
Saagar Jha:
We care a lot about design which is why we are about to introduce the worst designed OS in years
René Fouquet:
Quoting Steve Jobs with “Design is how it works” and then shitting the bed with #LiquidAss is bold.
Mario Guzmán:
Ballsy for Tim Cook to say “design is how it works” because Liquid Glass is absolute crap for usability and accessibility. Stacking views just for effect is consideration for Apple and not its users.
Jeff Johnson:
This “design is how it works” shit seems like a recognition of how bad Liquid Glass is and an attempted cover-up.
Marcin Krzyzanowski:
I don’t understand how can you put this on the slide, and ship macOS 26 like that at the same time
See also: Accidental Tech Podcast.
Previously:
Apple Event Design iOS iOS 26 Liquid Glass Mac macOS Tahoe 26 Steve Jobs watchOS watchOS 26
