Apple Seeds Third Beta of macOS Sonoma 14.3 to Developers

Apple today seeded the third beta of an upcoming macOS Sonoma 14.3 update to developers for testing purposes, with the software coming a week after the release of the second macOS Sonoma 14.3 beta.

sonoma desktop wwdc
Registered developers can opt-in to the beta through the Software Update section of the System Settings app. Under Beta updates, toggle on the ‌macOS Sonoma‌ Developer Beta. Note that an Apple ID associated with an Apple Developer account is required to get the beta.

We don't yet know what features are included in ‌macOS Sonoma‌ 14.3, and there were no notable changes discovered in the first two betas, so we may not know what's new until the software comes out and is accompanied by release notes.

Related Roundup: macOS Sonoma
Related Forum: macOS Sonoma

Top Rated Comments

Realityck Avatar
7 weeks ago
OTA still isn't showing yet.
Score: 2 Votes (Like | Disagree)
yukari Avatar
7 weeks ago

Didn't we get this last week?
Last week was beta 2: 14.3 Beta (23D5043d)
Score: 2 Votes (Like | Disagree)
CMMChris Avatar
7 weeks ago
Now it arrived!

Attachment Image
Score: 2 Votes (Like | Disagree)
Realityck Avatar
7 weeks ago
Comparison of 14.3 beta 3 to previous 14.3 beta 2

macOS 14.3 beta 3 (23D5051b)

* Safari Version 17.3 (19617.
* System Firmware Version: 10151.81.1 (M1 based Macs)
* Darwin Kernel Version 23.3.0: Thu Jan 4 13:53:24 PST 2024; root:xnu-10002.81.5~13/RELEASE_ARM64_T8103 arm64

macOS 14.3 beta 2 (23D5043d)

* Safari Version 17.3 (19617.2.3)
* System Firmware Version: 10151.80.20 (M1 based Macs)
* Darwin Kernel Version 23.3.0: Tue Dec 19 20:56:38 PST 2023; root:xnu-10002.80.20.505.4~2/RELEASE_ARM64_T8103 arm64

* Apple Music/TV is now from
Score: 2 Votes (Like | Disagree)
Realityck Avatar
7 weeks ago
Just noticed that one Safari issue I had for a very long time changed recently, possibly with this beta.

That is that you could not sign into Netflix while using private window mode with Apple's tracking and privacy preserving measures active. Now I can.
Score: 2 Votes (Like | Disagree)
jdclifford Avatar
7 weeks ago

Neither of my M1 MacBook Pro (16 and 14in) can see the update at 2:25PM Eastern

Axel F.
3:56pm ET and still not seeing anything. Have m1 iMac, M1 MBA, M2MBA and M3 MBP. None showing any available updates. All are on beta 2 (23D5043d). These beta rollouts are becoming more haphazard lately. Usually they were available about 30min after being announced, last couple are taking hours.
Score: 2 Votes (Like | Disagree)

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