Apple Seeds First Betas of macOS Sequoia 15.3 and More to Developers - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

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

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
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.

Popular Stories

Apple TV 4K HomeView HomePod Mini tweaked

New Apple TV 4K, HomeView, and HomePod Mini: 16 Details Just Leaked

Sunday October 11, 2026 12:56 pm PDT by
Just two days before Apple's "Welcome home" experience in New York, Bloomberg's Mark Gurman has leaked several details about the new products set to be unveiled, including an all-new smart home hub, a HomePod mini 2, and a new Apple TV 4K. Here is an all-in-one summary of the details shared by Gurman:Apple's home hub with a touch-enabled display will be named HomeView, seemingly confirming a ...
Apple TV 4K 4th Generation Top View5

New Apple TV 4K Announced With A19 Chip, Updated Siri Remote, More

Tuesday October 13, 2026 6:08 am PDT by
Apple today announced the fourth-generation Apple TV 4K, with key features including an A19 chip, Siri AI support, an updated Siri Remote that has Find My support with Precision Finding, built in far-field microphones, support for surround sound with four HomePods in front and rear pairs, and more. The A19 chip in the new Apple TV 4K delivers up to 50% faster CPU performance and up to twice...
iPad mini 7 Review Thumb 1 sans text

Apple Expected to Release New Products on Next Four Fridays

Sunday October 18, 2026 11:01 am PDT by
Apple likely plans to release MacBook Pro models with OLED displays, 14-inch MacBook Pro and iMac models with M6 chips, and/or an iPad mini 8 with an OLED display on Friday, November 6, according to Bloomberg's Mark Gurman. The devices are expected to be announced on Tuesday, October 27 or Wednesday, October 28. If this timeframe proves to be accurate, then Apple will be releasing new...

Top Rated Comments

Zorn Avatar
25 months ago
Bummed that 15.3 doesn't include the new Mail categorization features
Score: 9 Votes (Like | Disagree)
Realityck Avatar
25 months ago
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
Score: 6 Votes (Like | Disagree)
Realityck Avatar
25 months ago
Released to devs
iOS 18.3 beta (22D5034e) - December 16, 2024
iPadOS 18.3 beta (22D5034e) - December 16, 2024
macOS 15.3 beta (24D5034f) - December 16, 2024
tvOS 18.3 beta (22K5534e) - December 16, 2024
visionOS 2.3 beta (22N5875e) - December 16, 2024
watchOS 11.3 beta (22S5534d) - December 16, 2024
Score: 6 Votes (Like | Disagree)
smartmiller Avatar
25 months ago
Genmojis are here on Mac!

Attachment Image
Score: 5 Votes (Like | Disagree)
25 months ago

macOS 15.3 beta (24D5034)
sequoia 15.3 beta 1 build number 24D5034f

there is an f there too

i am downloading the ipsw

it has the f



EDIT: looks like Realityck corrected his post now. Good!

Attachment Image
Score: 3 Votes (Like | Disagree)
25 months ago

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.
That would typically be a dot release, for example, 15.2.1
Score: 2 Votes (Like | Disagree)
Latest Stories
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
3 hours ago
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
22 hours ago
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
22 hours ago
Here's a New Tour of Apple's HomeView Software
Here's a New Tour of Apple's HomeView Software
22 hours ago
Apple Reveals New iPad Mini's Battery Capacity
Apple Reveals New iPad Mini's Battery Capacity
23 hours ago
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
1 day ago
'Pluribus' Season 2 Reportedly Starts Production Today
'Pluribus' Season 2 Reportedly Starts Production Today
1 day ago
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
1 day ago
HomeView Software 27.2: Wallpapers, Control Center, and More
HomeView Software 27.2: Wallpapers, Control Center, and More
2 days ago
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
2 days ago
iOS 27.3 Will Enable These Apple Intelligence Features in China
iOS 27.3 Will Enable These Apple Intelligence Features in China
2 days ago
Apple Says iOS 27.3 Beta Coming Next Week
Apple Says iOS 27.3 Beta Coming Next Week
2 days ago
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
2 days ago
14 New Things Your iPhone Can Do in iOS 27.2
14 New Things Your iPhone Can Do in iOS 27.2
2 days ago
iPhone Duo Review: One Week Later
iPhone Duo Review: One Week Later
2 days ago
Samsung Mocks iPhone Duo Display Cracks in New Ad Campaign
Samsung Mocks iPhone Duo Display Cracks in New Ad Campaign
2 days ago
The MacRumors Show: OLED MacBook Pro, iPad Mini 8, and More
The MacRumors Show: OLED MacBook Pro, iPad Mini 8, and More
2 days ago
MacBook Pro With Touch Display: 15 More Details Revealed
MacBook Pro With Touch Display: 15 More Details Revealed
2 days ago
Russia Places Apple on State Surveillance Registry
Russia Places Apple on State Surveillance Registry
2 days ago
Halloween Weekend Brings Discounts on Apple Accessories and Pre-Orders
Halloween Weekend Brings Discounts on Apple Accessories and Pre-Orders
2 days ago
Apple Has Released More Than 25 New Products in the Past Two Months
Apple Has Released More Than 25 New Products in the Past Two Months
2 days ago
Local Code Launches as Free, Private AI Assistant Tool for Mac
Local Code Launches as Free, Private AI Assistant Tool for Mac
2 days ago
Apple Acquires Ascend.io
Apple Acquires Ascend.io
2 days ago
HomePod Mini 2 Launches Today: All the New Features
HomePod Mini 2 Launches Today: All the New Features
2 days ago
AirTag 2 4-Pack Drops to New Low Price of $69.99
AirTag 2 4-Pack Drops to New Low Price of $69.99
2 days ago
Rian Johnson's iPhone Camera App Goes Viral
Rian Johnson's iPhone Camera App Goes Viral
2 days ago
Where Did All the iPhone Duos Go? Mostly to Apple's Stores
Where Did All the iPhone Duos Go? Mostly to Apple's Stores
2 days ago
Apple's Touchscreen MacBook Pro Could Ship 1.5M Units in 2027
Apple's Touchscreen MacBook Pro Could Ship 1.5M Units in 2027
2 days ago
New Apple TV 4K and iPad Mini: RAM Amounts Revealed
New Apple TV 4K and iPad Mini: RAM Amounts Revealed
3 days ago
Apple Executive Comments on New iPad Mini Lacking 120Hz Display
Apple Executive Comments on New iPad Mini Lacking 120Hz Display
3 days ago

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors