Apple Seeds Third Beta of macOS Catalina to Developers

Apple today seeded the third beta of macOS 10.15 Catalina for testing purposes, two weeks after seeding the second macOS Catalina beta and a month 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. As with all new betas, macOS Catalina should not be installed on a primary machine as it is early release software and could have major bugs.

test macOS 10
macOS Catalina removes the iTunes app, splitting it into Music, Podcasts, and TV apps. The Apple Music and Apple Podcasts apps are available now, while the Apple TV app is coming later this year.

The new apps are similar in function to iTunes, but are split up by feature. iOS device management is still available on the Mac, but it's now done through 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 in macOS Catalina, and Macs with a T2 chip support Activation Lock. 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.

Screen Time is now 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.

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.

Top Rated Comments

Mike Haas Avatar
30 months ago
Ok, let me put it this way: Has ANYONE gotten this to install and if so, on what machine?
Score: 4 Votes (Like | Disagree)
KrisJa Avatar
30 months ago
If you are currently on Beta 2, 'softwareupdated' will install a bunch of packages to /Library/Updates/041-81733.

In this location there is 041-81733.en_GB.plist which has a line:

<bridge-version build-version="17.16.10496.5.4" build-group="0"/>

This fails to install for reasons mentioned earlier in this thread.

HOWEVER, if you re-install the Developer Beta Profile, it will instead download a larger set of packages to /Library/Updates/041-81731.

041-81731.en_GB.plist has an internal reference to build number 19A501i which is more recent than Beta2 which is 19A487i

The download finished and I am greeted with a functional installer Window...

EDIT: it is now installing just fine. Moral of the story: re-install the profile



Attachment Image
Score: 3 Votes (Like | Disagree)
embraceware Avatar
30 months ago
My bank has a 32-bit app that i want to use, so no upgrade for me. :(
One solution would be to setup a macOS Mojave install inside of Parallels Desktop or VMWare Fusion for 32-bit apps. Name it Rosetta ;).
Score: 3 Votes (Like | Disagree)
djchrisallen Avatar
30 months ago
What seems to have worked for me was going to Advanced from the Software Update pane, unchecking everything. The click Install Update again. This time no error and it went through
2019 15” MBP w TB, i9
This also just worked for me. Thanks for the tip.
Score: 2 Votes (Like | Disagree)
anticipate Avatar
30 months ago
"The bridgeOS update doesn't satisfy the given minimum version requirement." is causing it. MBP 2018 Touch Bar.
How stupid of an error. lol Did they even test the build?
Score: 2 Votes (Like | Disagree)
anticipate Avatar
30 months ago
Hmm. Not installing. Keeps throwing an error
Score: 2 Votes (Like | Disagree)

Related Stories

youtube apple tv

YouTube Discontinuing 3rd-Generation Apple TV App, AirPlay Still Available

Wednesday February 3, 2021 3:09 pm PST by
YouTube is planning to stop supporting its YouTube app on the third-generation Apple TV models, where YouTube has long been available as a channel option. A 9to5Mac reader received a message about the upcoming app discontinuation, which is set to take place in March.Starting early March, the YouTube app will no longer be available on Apple TV (3rd generation). You can still watch YouTube on...
iPhone 13 Dummy Thumbnail 2

Kuo: iPhone 13 to Feature LEO Satellite Communications to Make Calls and Texts Without Cellular Coverage

Sunday August 29, 2021 7:39 am PDT by
The iPhone 13 will feature low earth orbit (LEO) satellite communication connectivity to allow users to make calls and send messages in areas without 4G or 5G coverage, according to the reliable analyst Ming-Chi Kuo. In a note to investors, seen by MacRumors, Kuo explained that the iPhone 13 lineup will feature hardware that is able to connect to LEO satellites. If enabled with the relevant...
General Apps Messages

Android iMessage Competitor Puts Pressure on Apple

Friday July 30, 2021 3:15 am PDT by
Google and the three major U.S. carriers, including Verizon, AT&T, and T-Mobile, will all support a new communications protocol on Android smartphones starting in 2022, a move that puts pressure on Apple to adopt a new cross-platform messaging standard and may present a challenge to iMessage. Verizon recently announced that it is planning to adopt Messages by Google as its default messaging...
os x mountain lion macs 16x9 2

Apple Makes OS X Lion and Mountain Lion Free to Download

Wednesday June 30, 2021 12:19 pm PDT by
Apple recently dropped the $19.99 fee for OS X Lion and Mountain Lion, making the older Mac updates free to download, reports Macworld. Apple has kept OS X 10.7 Lion and OS X 10.8 Mountain Lion available for customers who have machines limited to the older software, but until recently, Apple was charging $19.99 to get download codes for the updates. As of last week, these updates no...
bluetti eb70 main

MacRumors Giveaway: Win a Bluetti EB70 Portable Power Station and 200W Solar Panel

Friday September 3, 2021 11:13 am PDT by
For this week's giveaway, we've teamed up with MAXOAK to offer MacRumors readers a chance to win a Bluetti portable power station and an accompanying solar panel. Bluetti makes a range of portable power station options that are useful for camping, emergencies, power outages, off-grid living, and similar situations. The Bluetti EB70 is a solid middle of the road option that offers 716Wh and...
apple privacy

Apple Publishes FAQ to Address Concerns About CSAM Detection and Messages Scanning

Monday August 9, 2021 1:50 am PDT by
Apple has published a FAQ titled "Expanded Protections for Children" which aims to allay users' privacy concerns about the new CSAM detection in iCloud Photos and communication safety for Messages features that the company announced last week. "Since we announced these features, many stakeholders including privacy organizations and child safety organizations have expressed their support of...
General Spotify Feature

Spotify Pauses Plans to Add AirPlay 2 Support to iOS App [Update: Spotify Clarifies]

Friday August 6, 2021 9:07 am PDT by
See update at bottom of article Spotify this week confirmed that its plans to add AirPlay 2 support to its iOS app have been placed on indefinite hiatus. In an online discussion forum post, a Spotify representative said the streaming music service had been working on supporting AirPlay 2, but the company has paused the efforts "for now" due to "audio driver compatibility issues." The...
iphone 13 teal with text

Apple Begins Preparation for iPhone 13 Production Ahead of Fall Launch

Monday June 28, 2021 3:29 am PDT by
We're just a few months away from when Apple is expected to reveal the 2021 iPhone, dubbed the "iPhone 13." In preparation for its launch, it has been pulling in shipments of different components needed to produce the new iPhones, according to a report from DigiTimes. In years past, Apple released its latest iPhone lineup, alongside a new Apple Watch, during a September event at Apple Park....
General Spotify Feature

Spotify Partners With Delta to Provide Free In-Flight Music and Podcasts Service

Thursday September 2, 2021 12:59 am PDT by
Spotify has announced a new partnership with Delta that will see the streaming service take over the "audio" section of Delta's in-flight seatback entertainment, making select playlists and podcasts freely available to all passengers. You are now free to roam about the cabin—and get the music and podcasts you love at 30,000 feet. Beginning today, we're taking off in a new partnership with...
iphone 12 colors 2021

iPhone 12 Colors: Deciding on The Right Color

Thursday November 5, 2020 8:35 am PST by
The iPhone 12 and iPhone 12 Pro arrived in October 2020 in a range of color options, with entirely new hues available on both devices, as well as some popular classics. The 12 and 12 Pro have different color choices, so if you have your heart set on a particular shade, you might not be able to get your preferred model in that color. iPhone 12 mini and iPhone 12 The iPhone 12 mini and iPhone...