Apple Seeds macOS Catalina Beta 8 to Developers - MacRumors
Skip to Content

Apple Seeds macOS Catalina Beta 8 to Developers

by

Apple today seeded the eighth beta of macOS 10.15 Catalina to developers, two weeks after seeding the seventh macOS Catalina beta and over two 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 will release macOS Catalina sometime in October.

Related Forum: macOS Catalina

Top Rated Comments

93 months ago
And THAT is NOT a mess???
How much of a fan boy one has to be...
Why do people believe stories like this? Don't get me wrong - I think he really believes what he wrote, but an OS install doesn't cause that kind of damage or prevent one from upgrading their machine. The issues lie with the person installing, not the software and from what I've read here over the years regarding various beta releases, some people should never install them at all.

During the course of this beta I've read some of the wildest stories imaginable - just like you read every single Summer beta cycle. The first and second betas had issues with the 2018/19 hardware, that was about it. I have a 13" 2017 MBP, no taskbar. My installs went without a hitch. I had issues with overheating and fan speeds, iCloud was a mess (still is, was, and probably always will be because Consumer-grade cloud services are crap by their very nature) and I'd even go so far as to say that the Mojave beta cycle was probably a lot cleaner.

It's a BETA - what do people not understand about this idea? Catalina is shaping up to be a great iteration of MacOS - what do people want? I know exactly what's going to happen. By about 15.5 or 6 Catalina will be humming right along and I'll be stupid enough to participate in the next beta cycle knowing exactly what I'm getting myself into...
Score: 4 Votes (Like | Disagree)
Skylar. Avatar
93 months ago
The default Catalina wallpaper is fully dynamic now. And they added a bunch of scenic shots of the Catalina island.
Score: 4 Votes (Like | Disagree)
schlitzz Avatar
93 months ago
Seriously?!?

https://www.apple.com/macos/catalina/
"SIRIously". Dammit people, get it right.
Score: 4 Votes (Like | Disagree)
ghostface147 Avatar
93 months ago
I'm still waiting for Adobe to complete the Acrobat DC 64-bit transition. As of now, without using any tricks to install it, it opens and then closes on Catalina.
Score: 3 Votes (Like | Disagree)
93 months ago
It’s not a mess. It’s just that it takes them longer to finish it and the first betas came a bit too early. Beta 6 somehow wrecked my 2013 27” iMac’s firmware though. The iMac is still working but I can no longer update to newer versions. I probably have to bring it to an AASP to get it restored.
And THAT is NOT a mess???
How much of a fan boy one has to be...
Score: 2 Votes (Like | Disagree)
Shirasaki Avatar
93 months ago
I have few 32 bits apps I wonder if someone will create a patch to run those apps natively instead of doing it on a VM
At this point, the most native solution would be using virtual machine. Catalina does not have “maconmac” mode similar to “wow64”, which is a full 32-bit code library on 64-bit windows.
Score: 2 Votes (Like | Disagree)

Popular Stories

M5 MacBook Pro

RIP, MacBook Ultra

Monday October 19, 2026 9:37 am PDT by
Apple today sent out invites for an experience in Los Angeles on Wednesday, October 28, and the "Pro and tell" tagline on the invitation likely means that the rumored MacBook models with touch-enabled OLED displays will stick with MacBook Pro branding instead of the once-rumored "MacBook Ultra" name. The long-rumored "iPhone Ultra" ended up being named iPhone Duo, so speculation that Apple...
iPhone Duo Trio

Here's What Apple's Apps Look Like on the iPhone Duo

Tuesday October 20, 2026 11:12 am PDT by
With just three days to go until the iPhone Duo is released, Apple is getting ready for the launch. Behind the scenes, the App Store now has screenshots of Apple's built-in apps running on the Duo. We've seen some apps in marketing materials, but images of the ones we haven't seen give us an idea of what it will be like using the iPhone Duo day to day. Many apps are shown in landscape...
apple pro tell logo

Apple Announcing New Products Next Week: 'Pro and Tell'

Monday October 19, 2026 9:05 am PDT by
Apple's Greg Joswiak today hinted at new product announcements coming next week, sharing a social media post that says "Can't wait to pro and tell next week." Rumors suggest Apple is planning to debut the new MacBook Pro with an OLED touchscreen display, an M6 entry-level MacBook Pro, an M6 iMac, an iPad mini with an OLED display. Can't wait to pro and tell next week....
Latest Stories
Apple Will Label Apps 'Made for iPhone Duo' in App Store
Apple Will Label Apps 'Made for iPhone Duo' in App Store
3 hours ago
Amazon Takes $49 Off iPad With Prices Starting at $399.99
Amazon Takes $49 Off iPad With Prices Starting at $399.99
3 hours ago
F1 on Apple TV Now Available in Dolby Atmos
F1 on Apple TV Now Available in Dolby Atmos
4 hours ago
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
4 hours ago
Apple Blocks Certificates That Could Help Attackers Fake Websites
Apple Blocks Certificates That Could Help Attackers Fake Websites
5 hours ago
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
6 hours ago
iPhone Duo 2 Prototypes Include Under-Display Face ID
iPhone Duo 2 Prototypes Include Under-Display Face ID
6 hours ago
Tesla App Gains iPad and iPhone Duo Support
Tesla App Gains iPad and iPhone Duo Support
10 hours ago
Apple Reportedly Boosts iPhone Duo Orders by 44%
Apple Reportedly Boosts iPhone Duo Orders by 44%
11 hours ago
Fortnite Returning to Australian App Store After Court Ruling
Fortnite Returning to Australian App Store After Court Ruling
11 hours ago
Apple Ordered to Open iPhone to Rival App Stores in Australia
Apple Ordered to Open iPhone to Rival App Stores in Australia
12 hours ago
Apple Suppliers Face Hurdles Cutting Circuit Board Emissions
Apple Suppliers Face Hurdles Cutting Circuit Board Emissions
12 hours ago
Things Updated for iPhone Duo With Adaptive Layout
Things Updated for iPhone Duo With Adaptive Layout
12 hours ago
Simplicity and Siri AI Are HomeView's Killer Features, Apple Says
Simplicity and Siri AI Are HomeView's Killer Features, Apple Says
13 hours ago
iPhone Duo Reviewers Really Miss Face ID
iPhone Duo Reviewers Really Miss Face ID
18 hours ago
Does the iPhone Duo Run Hot? Here's What Reviews Found
Does the iPhone Duo Run Hot? Here's What Reviews Found
19 hours ago
Apple Music's New Look is Now Live on Apple's Website
Apple Music's New Look is Now Live on Apple's Website
20 hours ago
Anthropic Launches Claude Duet, a Proactive AI Agent
Anthropic Launches Claude Duet, a Proactive AI Agent
20 hours ago
What 32,000 Folds Did to the iPhone Duo's Hinge
What 32,000 Folds Did to the iPhone Duo's Hinge
21 hours ago
iPhone Duo's Hidden FaceTime Camera Takes 'Trash' Photos
iPhone Duo's Hidden FaceTime Camera Takes 'Trash' Photos
23 hours ago
iPhone Duo Has 'Edge Light' Feature That Debuted on Macs Last Year
iPhone Duo Has 'Edge Light' Feature That Debuted on Macs Last Year
23 hours ago
Apple Support App Updated for iPhone Duo's Larger Display
Apple Support App Updated for iPhone Duo's Larger Display
23 hours ago
Amazon Sweetens the Deal on Entry-Level 16-Inch MacBook Pro With $570 Off
Amazon Sweetens the Deal on Entry-Level 16-Inch MacBook Pro With $570 Off
1 day ago
iPhone Duo Tips Over on MagSafe Stands When Unfolded
iPhone Duo Tips Over on MagSafe Stands When Unfolded
1 day ago
Apple Music's New Look Officially Announced
Apple Music's New Look Officially Announced
1 day ago
iPhone Duo Supports Apple Pencil Starting With iOS 27.2
iPhone Duo Supports Apple Pencil Starting With iOS 27.2
1 day ago
iPhone Duo Accessories Roundup: Cases and Screen Protectors From OtterBox, ZAGG, and More
iPhone Duo Accessories Roundup: Cases and Screen Protectors From OtterBox, ZAGG, and More
1 day ago
Apple Stores Will Have 'Limited' Availability of iPhone Duo for Walk-In Customers
Apple Stores Will Have 'Limited' Availability of iPhone Duo for Walk-In Customers
1 day ago
iPhone Duo Reviews Explain Why Device is Both 'Fun' and 'Frustrating'
iPhone Duo Reviews Explain Why Device is Both 'Fun' and 'Frustrating'
1 day ago
Apple Says 'Reachability' Feature Coming to iPhone Duo Later This Year
Apple Says 'Reachability' Feature Coming to iPhone Duo Later This Year
1 day ago