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Apple Seeds First Betas of macOS Sequoia 15.3 and More to Developers

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Apple today provided developers with the first beta of an upcoming macOS Sequoia 15.3 update, with the new update coming a week after Apple released macOS Sequoia 15.2. Apple has also seeded new betas of watchOS 11.3, tvOS 18.3, and visionOS 2.3.

macOS-Sequoia-Feature.jpg

The betas are available to registered developers at this time, and can be downloaded from the settings app on each device.

We don't yet know what's included in the macOS Sequoia 15.3 update or the other updates, but we'll update this article should anything new be found after we download and install the new software.

Article Link: Apple Seeds First Betas of macOS Sequoia 15.3 and More to Developers
 
Article Link
https://www.macrumors.com/2024/12/16/apple-seeds-first-macos-sequoia-15-3-beta/
Last edited:
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Just installed, and Genmoji is here for the Mac! They added the interface to create them in the emoji picker!
 
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Note how the 15.2 RC's are using very close dates to even todays 15.3 beta Darwin Kernel

Comparison of MacOS 153 beta to previous MacOS 15.2 Public, RC2 and RC

macOS 15.3 beta (24D5034f)
  • Safari Version 18.3 (20620.2.2)
  • System Firmware Version: 11881.80.44 (AS based Macs)
  • Darwin Kernel Version 24.3.0: Mon Dec 9 19:48:47 PST 2024; root:xnu-11215.80.25.501.2~1/RELEASE_ARM64_T8103 arm64
macOS 15.2 Public (24C101)
  • Safari Version 18.2 (20620.1.16.11.8)
  • System Firmware Version: 11881.61.3 (AS based Macs)
  • Darwin Kernel Version 24.2.0: Fri Dec 6 18:40:14 PST 2024; root:xnu-11215.61.5~2/RELEASE_ARM64_T8103 arm64
macOS 15.2 RC2 (24C100)
  • Safari Version 18.2 (20620.1.16.11.8)
  • System Firmware Version: 11881.61.3 (AS based Macs)
  • Darwin Kernel Version 24.2.0: Thu Dec 5 18:32:37 PST 2024; root:xnu-11215.61.4~2/RELEASE_ARM64_T8103 arm64
macOS 15.2 RC (24C98)
  • Safari Version 18.2 (20620.1.16.11.8)
  • System Firmware Version: 11881.61.3 (AS based Macs)
  • Darwin Kernel Version 24.2.0: Fri Nov 15 19:28:45 PST 2024; root:xnu-11215.61.3~1/RELEASE_ARM64_T8103 arm64
Apple Music/TV is still 1.5.2.56 no change going to 15.3 beta
 
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Plutonius said:
Are beta releases usually that quick after a MacOS version is released ?

I wonder if Apple discovered bugs in the just released 15.2 that they want to patch quickly.
Click to expand...

Yeah pretty standard, and it is the same with iOS. 15.2 betas, outside of the RC, ran like complete crap for me. This is where I have to leave the beta train on my Mac :(
 
Plutonius said:
Are beta releases usually that quick after a MacOS version is released ?
Click to expand...
Usually? I would say no, but sometimes betas are released before the previous version goes final. It’s not unheard of for them to release a beta for the next version while the previous version is in mid beta. It’s not a big deal to release off of multiple branches like that.
 
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Plutonius said:
Are beta releases usually that quick after a MacOS version is released ?

I wonder if Apple discovered bugs in the just released 15.2 that they want to patch quickly.
Click to expand...

15.1 Beta 1 was released before the final release of 15.0 and 15.2 Beta 1 was released before the final version of 15.1 was released. Same for iOS/iPadOS 18.1 and 18.2. So this one is rather late.
 
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tywebb13 said:
there is a ventura 13.7.3 rc 1 build 22H406

not sure what is going on with the sonoma. maybe one will come later
Click to expand...

It's not listed with the other new releases in the developer portal. I had an RC for a point update on an old device a few months ago too. I think it was iPad OS 17.7.1 or so. It was also not mentioned anywhere.

Screen Shot 2024-12-16 at 22.02.43.png
 
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Adora said:
It's not listed with the other new releases in the developer portal. I had an RC for a point update on an old device a few months ago too. I think it was iPad OS 17.7.1 or so. It was also not mentioned anywhere.

View attachment 2463144
Click to expand...
they don't list the ventura or sonoma rcs there anymore, but we should expect support for those to continue till macos 16 is released. then or shortly before they would likely drop support for the ventura.

anyway the full installer for the 13.7.3 rc 1 isn't available yet but probably will come tomorrow. it is however available ota now.

i'm still trying to figure out what is going on with sonoma. seems strange they release a ventura rc but not sonoma rc.
 
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