Apple Seeds Third Beta of Upcoming macOS Catalina 10.15.1 Update to Developers - MacRumors
Skip to Content

Apple Seeds Third Beta of Upcoming macOS Catalina 10.15.1 Update to Developers

by

Apple today seeded the third beta of an upcoming macOS Catalina 10.15.1 update to developers, a week after seeding the second beta and a little over two weeks after releasing macOS Catalina to the public.

The new macOS Catalina beta can be downloaded using the Software Update mechanism in System Preferences after installing the proper software from the Developer Center.

test macOS 10
The first update to macOS Catalina is minor in scale and appears to focus on performance improvements and fixes for bugs that weren't able to be addressed in the first version of Catalina. An interim supplemental update was released just two days ago with some other bug fixes that needed to be addressed before 10.15.1 was ready.

Apple's release notes for the first beta said that the update introduces support for the AMD Navi RDNA eGPU architecture and brings some changes to Photos.

You can now filter by Favorites, Edited, ‌‌Photos‌‌, Videos, or Keywords in the All ‌‌Photos‌‌ view, and you can choose View > Metadata > Titles to enable titles and filenames in the All ‌‌Photos‌‌ View.

macOS Catalina is a major update that eliminates iTunes in favor of new Music, Podcasts, and TV apps, nixes support for 32-bit apps, adds a new Find My app, brings a new ‌Photos‌ interface, and includes multiple privacy enhancements and other app refinements.

For full details on what's new in macOS Catalina, make sure to check out our macOS Catalina roundup.

Related Forum: macOS Catalina

Popular Stories

Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro: Pre-Orders and Release Date

Sunday August 16, 2026 8:24 pm PDT by
Apple has yet to reveal when the iPhone 18 Pro and iPhone Ultra will be announced and released, but the dates usually follow a familiar pattern. As usual, the event is expected to take place in the first half of September. Labor Day falls on September 7 this year. The last time the holiday was on that day was in 2020, but the iPhone event that year was delayed until October due to the...
Read Full Article
apple camera airpods

Apple's Camera-Equipped AirPods Confirmed: See Them in Action

Monday August 17, 2026 6:21 pm PDT by
Apple is working on camera-equipped AirPods that appear to be nearly ready to launch, based on a video MacRumors found in the macOS Tahoe 26.7 release candidate. In a short demo, a man holds a book up so the camera in the AirPods can see the title. "With Visual Intelligence, your world becomes savable. See something you like? Just ask me to save it for later," says the voiceover text. Here ...
Read Full Article • 252 comments
iPhone 18 Pro Dark Cherry Feature

iPhone 18 Pro and iPhone Ultra: New Details Leak as Apple Event Nears

Monday August 17, 2026 11:09 am PDT by
"iPhone Ultra" supply will be very limited when the foldable device is first released later this year, according to Fixed Focus Digital, a known leaker on the Chinese social media platform Weibo. The account also claimed that the iPhone 18 Pro's A20 Pro chip will be up to 18% faster and up to 30% more power efficient compared to the iPhone 17 Pro's A19 Pro chip. The A20 Pro chip will be the...
Read Full Article • 29 comments

Top Rated Comments

LiE_ Avatar
LiE_
89 months ago
My body is ready for Navi eGPU.
Score: 4 Votes (Like | Disagree)
DHagan4755 Avatar
DHagan4755
89 months ago
The big question: Does the new 16-inch MacBook Pro or the Mac Pro require 10.15.1? If so, we're waiting for the general availability of this update.
Score: 4 Votes (Like | Disagree)
hagjohn Avatar
hagjohn
89 months ago

I believe Apple should release iOS and Os releases different times of the year, maybe first half OS 2nd half iOS just so more time can be spent on beta testing and more “appointed“ people can focus on bugs etc just my .2 cents
The problem is that iOS/iPadOS and MacOS are now coming together (in ways), so you really can't release them separately. Reminders is a good example. upgrading iOS 13 broke reminders in MacOS. I have the feeling that we will see more of this with the new TV, Podcast & Music apps.
Score: 3 Votes (Like | Disagree)
Rafterman Avatar
Rafterman
89 months ago
The replacement apps for iTunes are terrible and need to be addressed ASAP. They feel like early alpha versions.
Score: 3 Votes (Like | Disagree)
Skylar. Avatar
Skylar.
89 months ago
New install screen? Definitely something better to look at than an Apple logo with a bar under it.

Attachment Image
Score: 3 Votes (Like | Disagree)
M
MikhailT
89 months ago

The big question: Does the new 16-inch MacBook Pro or the Mac Pro require 10.15.1? If so, we're waiting for the general availability of this update.
Apple has shipped hardware-specific macOS builds on new Macs that then gets updated to future OS updates, so there's no need to wait for any updates on their side.
Score: 3 Votes (Like | Disagree)
Read All Comments