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

Apple today seeded the second beta of an upcoming macOS Catalina 10.15.1 update to developers, a little under a week after seeding the first beta and a week and a half 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

iphone air thickness

Apple Said to Cut iPhone Air Production Amid Underwhelming Sales

Friday October 17, 2025 8:29 am PDT by
Apple plans to cut production of the iPhone Air amid underwhelming sales performance, Japan's Mizuho Securities believes (via The Elec). The Japanese investment banking and securities firm claims that the iPhone 17 Pro and iPhone 17 Pro Max are seeing higher sales than their predecessors during the same period last year, while the standard iPhone 17 is a major success, performing...
HomePod mini and Apple TV

Apple's Next Rumored Products: New HomePod Mini, Apple TV, and More

Thursday October 16, 2025 9:13 am PDT by
Apple on Wednesday updated the 14-inch MacBook Pro, iPad Pro, and Vision Pro with its next-generation M5 chip, but previous rumors have indicated that the company still plans to announce at least a few additional products before the end of the year. The following Apple products have at one point been rumored to be updated in 2025, although it is unclear if the timeframe for any of them has...
iOS 26 Feature

iOS 26.1 to iOS 26.4 Will Add These New Features to Your iPhone

Saturday October 18, 2025 11:00 am PDT by
iOS 26 was released last month, but the software train never stops, and iOS 26.1 beta testing is already underway. So far, iOS 26.1 makes both Apple Intelligence and Live Translation on compatible AirPods available in additional languages, and it includes some other minor changes across the Apple Music, Calendar, Photos, Clock, and Safari apps. More features and changes will follow in future ...
maxresdefault

Here's Everything Apple Announced Today

Wednesday October 15, 2025 3:54 pm PDT by
We didn't get a second fall event this year, but Apple did unveil updated products with a series of press releases that went out today. The M5 chip made an appearance in new MacBook Pro, Vision Pro, and iPad Pro models. Subscribe to the MacRumors YouTube channel for more videos. We've rounded up our coverage and highlighted the main feature changes for each device below. MacBook Pro M5...
iOS 26

iOS 26.0.2 Update for iPhones Coming Soon

Friday October 17, 2025 7:35 am PDT by
Apple's software engineers continue to internally test iOS 26.0.2, according to MacRumors logs, which have been a reliable indicator of upcoming iOS versions. iOS 26.0.2 will be a minor update that addresses bugs and/or security vulnerabilities, but we do not know any specific details yet. The update will likely be released by the end of next week. Last month, Apple released iOS 26.0.1,...
14 inch MacBook Pro Keyboard

New 14-Inch MacBook Pro Has Two Key Upgrades Beyond the M5 Chip

Thursday October 16, 2025 8:31 am PDT by
Apple on Wednesday updated the 14-inch MacBook Pro base model with an M5 chip, and there are two key storage-related upgrades beyond that chip bump. First, Apple says the new 14-inch MacBook Pro offers up to 2× faster SSD performance than the equivalent previous-generation model, so read and write speeds should get a significant boost. Apple says it is using "the latest storage technology," ...
Apple iPad Pro hero M5

Apple Debuts New iPad Pro With M5 Chip, Faster Charging, and More

Wednesday October 15, 2025 6:16 am PDT by
Apple today announced the next-generation iPad Pro, featuring the custom-designed M5, C1X, and N1 chips. The M5 chip has up to a 10-core CPU, with four performance cores and six efficiency cores. It features a next-generation GPU with Neural Accelerator in each core, allowing the new iPad Pro to deliver up to 3.5x the AI performance than the previous model, and a third-generation ray-tracing ...
M5 MacBook Pro

Apple Announces New 14-Inch MacBook Pro With M5 Chip

Wednesday October 15, 2025 6:07 am PDT by
Apple today updated the 14-inch MacBook Pro base model with its new M5 chip, which is also available in updated iPad Pro and Vision Pro models. In addition, the base 14-inch MacBook Pro can now be configured with up to 4TB of storage on Apple's online store, whereas the previous model maxed out at 2TB. However, the maximum amount of unified RAM available for this model remains 32GB. Like...
m4 macbook air blue

M5 MacBook Air Coming Spring 2026 With M5 Mac Studio and Mac Mini in Development

Thursday October 16, 2025 3:57 pm PDT by
Apple plans to launch MacBook Air models equipped with the new M5 chip in spring 2026, according to Bloomberg's Mark Gurman. Apple is also working on M5 Pro and M5 Max MacBook Pro models that will come early in the year. Neither the MacBook Pro models nor the MacBook Air models are expected to get design changes, with Apple focusing on simple chip upgrades. In the case of the MacBook Pro, a m...

Top Rated Comments

ElectricPotato Avatar
78 months ago
Clean up on aisle 10.15!
Score: 29 Votes (Like | Disagree)
canadianreader Avatar
78 months ago
Hopefully they will resolve Apple Mail openings itself randomly and disrupting full screen gaming and workflow
Score: 17 Votes (Like | Disagree)
Mick-Mac Avatar
78 months ago
Good luck to all you Catalina beta-testers out there (i.e. those of you who upgraded). I'm not touching this until at least 10.15.3. Catalina was such a disaster even through the real beta testing cycle. If Apple still pride themselves on quality (and make no mistake, their quality control has steadily been going down over the years) then they should change to releasing something when it's ready and not just because it's e.g. September.
Score: 12 Votes (Like | Disagree)
bladerunner2000 Avatar
78 months ago

Hopefully they will resolve Apple Mail openings itself randomly and disrupting full screen gaming and workflow
What? When did Apple start selling a Mac with a capable GPU for gaming?
Score: 10 Votes (Like | Disagree)
jjudson Avatar
78 months ago
Apple:

Here's the latest version of our new operating system...

...don't install it yet.

We have a couple more interim releases before you get the thumb's up.

Please stand by.

Score: 9 Votes (Like | Disagree)
MauiPa Avatar
78 months ago

Until the issue with Apple Mail randomly removing mass amounts of mail from iCloud accounts after the upgrade, 10.15.x is still not worth the risk.
Damn, never happened to me. How come all these issues never seem to happen?


The "iTunes elimination" is really a fake move.

Yesterday I clicked on one of my pre-ordered movies in the TV app and it brought me to the Music app showing me the details of that movie... So basically the new Music app is just a stripped off version of iTunes. Somewhat still has some iTunes genes in it...

Why do we need those separate app icons if their functionalities are still mixed up?
Simple. Haters were hating iTunes and demanded it be slimmed down. It was always fine for me. worked, did its job. The new setup is great though


Good luck to all you Catalina beta-testers out there (i.e. those of you who upgraded). I'm not touching this until at least 10.15.3. Catalina was such a disaster even through the real beta testing cycle. If Apple still pride themselves on quality (and make no mistake, their quality control has steadily been going down over the years) then they should change to releasing something when it's ready and not just because it's e.g. September.
haha. you are not a tester, but you say its crap. NOT! it is fine, very few bugs, it works great, the loud haters are usually not right
Score: 8 Votes (Like | Disagree)