Apple today seeded the ninth beta of macOS 10.15 Catalina to developers, two weeks after seeding the eighth macOS Catalina beta and over three months after the new Mac operating system update was first unveiled at the Worldwide Developers Conference.

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
macOS Catalina eliminates the iTunes app, splitting it into Music, Podcasts, and TV apps. The three new apps offer similar functionality to iTunes, but are split up by feature. iOS device management is still available on the Mac, but it's now done through the Finder rather than iTunes.

With a new Sidecar feature, you can turn your iPad into a second display for your Mac with just the click of a button. The Apple Pencil works with ‌Sidecar‌, so you can turn your ‌iPad‌ into a drawing tablet in apps like Photoshop and Illustrator.

Your Apple Watch can be used to approve security prompts for passwords and other info in macOS Catalina, and Macs with a T2 chip now support Activation Lock, making them more secure. There's a new Find My that brings the ‌Find My‌ Mac app to the Mac for the first time and even lets you track your devices when they're offline, or, in the case of notebooks, closed.

Screen Time is available on the Mac as well as iOS devices, and Project Catalyst, a new Apple initiative, will let developers easily port their ‌iPad‌ apps over to the Mac to increase the number of Mac apps available.

There's a new Photos interface that surfaces your best photos organized by day, month, or year, there's a new start page in Safari, Mail has new tools for muting email threads and blocking senders, and the Reminders app has been overhauled.

32-bit apps no longer work in macOS Catalina, which is something to be aware of before installing the beta.

For more details on macOS Catalina, make sure to check out our macOS Catalina roundup. Apple is planning to release macOS Catalina sometime in October, with no specific launch date announced as of yet.

Top Rated Comments

iBluetooth Avatar
29 months ago

Really hope this fixes Final Cut Pro X. I haven't been able to work since DB8 :(
Why are you installing betas on your workmachine?
Score: 16 Votes (Like | Disagree)
TMRJIJ Avatar
29 months ago

Really hope this fixes Final Cut Pro X. I haven't been able to work since DB8 :(

4.99gb it bloody better fix FCP. Fancy apple releasing a new OS an not making FCP as a priority compatible.
Beta Software is Beta.
Score: 14 Votes (Like | Disagree)
Chris The Bipolarbear Avatar
29 months ago
Upgrade come in at 4.99gb New full installer come out at 8.8GB build number = 19A573a Previous 19A558d which put this 15 Builds ahead of previous beta. And yes I had to take my shoes a socks of so I could work that out Needed 5 toes.
Score: 10 Votes (Like | Disagree)
Mike Haas Avatar
29 months ago
Another large download...4.99 GB.
Score: 10 Votes (Like | Disagree)
hmark8 Avatar
29 months ago

Really hope this fixes Final Cut Pro X. I haven't been able to work since DB8 :(
...I really hope you are not using the beta on the only computer you have to use for your paying clients. :(
Score: 8 Votes (Like | Disagree)
carlsson Avatar
29 months ago

Why are you installing betas on your workmachine?
Because it’s the only way to properly test a beta.
You will *never* find all the glitches and quirks if you don’t *work* as normal on it.

/IMHO
Score: 6 Votes (Like | Disagree)

Related Stories

iphone holiday

Best Black Friday iPhone Deals Still Available

Friday November 26, 2021 4:58 am PST by
Cellular carriers have always offered big savings on the newest iPhone models in holidays past, and Black Friday 2021 is no different. Right now we're tracking notable offers on the iPhone 13 and iPhone 13 Pro devices from AT&T, Verizon, and T-Mobile. For even more savings, keep an eye on older models like iPhone SE. Note: MacRumors is an affiliate partner with some of these vendors. When you...
airpods family holiday

Best Black Friday AirPods Deals Still Available

Friday November 26, 2021 4:04 am PST by
Black Friday 2021 deals are still going strong, and we're tracking the best deals across Apple's AirPods lineup. Throughout the week we've been sharing the best sales for Apple devices like iPhone, Mac, and iPad, so be sure to follow us on Twitter for all of the latest Black Friday sales Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a...
apple mixed reality headset mockup feature purple

Kuo: Apple AR Headset Coming in Late 2022 With Mac-Level Computing Power

Thursday November 25, 2021 8:32 pm PST by
Apple's long-rumored augmented reality (AR) headset project is set to bear its first fruit late next year with the launch of the first device carrying a pair of processors to support its high-end capabilities, according to a new research report from noted analyst Ming-Chi Kuo seen by MacRumors. According to Kuo, the higher-end main processor is said to be similar to the M1 chip Apple...
apple watch cellular holiday

Best Black Friday Apple Watch Deals Still Available

Friday November 26, 2021 4:55 am PST by
The Apple Watch always makes a great gift around the holiday season, and for Black Friday 2021 we're tracking a few solid offers on numerous models of the Apple Watch. In this article, you'll find the best Black Friday sales on the new Apple Watch 7, but the best money-saving discounts will be found on older models like the Apple Watch Series 3 and SE. Note: MacRumors is an affiliate partner...
iPads black friday 20 sale feature

Best Black Friday iPad Deals Still Available

Friday November 26, 2021 4:48 am PST by
Although Black Friday sales began as early as October in 2021, the shopping holiday is now officially underway and we're highlighting the best sales for each of Apple's product lines. In this article, you'll find the best Black Friday sales on iPad Pro and iPad mini. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a...
mac family holiday

Best Black Friday iMac and MacBook Deals Still Available

Friday November 26, 2021 4:29 am PST by
Our Black Friday 2021 coverage continues with the best deals you can find on MacBook Pro, MacBook Air, iMac, and Mac mini today. As with all Black Friday deals, we aren't sure how long any of these will last, and prices are always fluctuating, so if you see something you want, be sure to buy it soon. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and...
General black friday 20 sale feature

Huge List of Black Friday Deals on iPhone and Mac Cases, Cables, Accessories and Software

Friday November 26, 2021 5:09 am PST by
Black Friday is in full swing today, and in this article we're highlighting some of the best deals that you can find online among popular third-party accessory makers like Twelve South, Nomad, Satechi, and many more. Visit our Black Friday Roundup for a deeper dive into the best sales going on today. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and...
apple black friday shopping event 2021

Apple's Black Friday Promotion Now Underway in the U.S. and More Countries

Friday November 26, 2021 12:07 am PST by
Apple's annual four-day Black Friday through Cyber Monday shopping event is now underway in the United States and select other countries, with customers able to receive a free Apple gift card with the purchase of select products through November 29. Participating countries include the United States, Canada, Australia, New Zealand, the UK, Ireland, France, Spain, Portugal, Italy, Germany,...