Apple today seeded the fourth beta of an upcoming macOS Catalina 10.15.2 update to developers, two weeks after releasing the third beta and over a month after the launch of macOS Catalina 10.15.1.

The new macOS Catalina beta can be downloaded through the Software Update mechanism in the System Preferences app after installing the appropriate profile from the Developer Center.

macos catalina wallpaper
We don't yet know what improvements the second update to macOS Catalina will bring, but it most likely focuses on performance improvements, security updates, and fixes for bugs that weren't able to be addressed in the macOS Catalina 10.15.1 update.

We didn't find any major new changes worth noting in the first three betas, but we'll update this article should anything notable be found in the fourth beta.

macOS Catalina is a major update that does away with iTunes in favor of new Music, Podcasts, and TV apps. It also 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 more on everything that's new in macOS Catalina, make sure to check out our dedicated macOS Catalina roundup.

Related Forum: macOS Catalina

Top Rated Comments

Ener Ji Avatar
81 months ago

Anyone who follows the beta cycles have an educated guess when this will be released?


Around January

no, 10.15.2 will be out around January.
What makes you so confident it'll be released in January? I would have guessed it might release as soon as next week, but it's a total guess on my part. The new 16" MBP (a halo product along with the new Mac Pro) is experiencing some glitches which I surmise might be fixed or at least improved in 10.15.2, so there's incentive for Apple to get the .2 update in a timely manner.
Score: 4 Votes (Like | Disagree)
GadgetBen Avatar
81 months ago
Given the complaints and reviews on Apple Store, this software is probably the worst performing operating system ever introduced by Apple. I cannot believe how slow Apple have been at providing ‘fixes’.

I myself have sent through multiple Feedback reports and nothing. Problems that still exist from PB 3!
Score: 4 Votes (Like | Disagree)
urbanmacUser Avatar
81 months ago

Most likely upgrade to Catalina when it's at 10.15.3, let's hope they sort it out soon...



Around January
It will be in December as required for the new Mac Pro
Score: 3 Votes (Like | Disagree)
centauratlas Avatar
81 months ago
Hopefully they fix syncing for photos for albums in folders. They had this same bug several major releases ago and it is back. (People aren't happy if OS's aren't well tested.)
Score: 3 Votes (Like | Disagree)
ephone1 Avatar
81 months ago
Anyone who follows the beta cycles have an educated guess when this will be released?
Score: 3 Votes (Like | Disagree)
justperry Avatar
81 months ago

This isn't the worst ever - that medal gets pinned on Lion. Catalina is definitely second though. I just gave up ruining my life beta testing this one. I swore I wouldn't touch this pox ridden OS X version until at least 10.15.4, but then I went ahead and purchased a new 16" MacBook Pro so now swimming nose deep in hot, steaming [censored] along with the rest of the Catalina crowd...
Catalina is not Apples best macOS* ;) , but it's by no means the worst or second worst OS, seems like you and others haven't been using OS X/macOS long enough.
For me Yosemite sucked, but just for one single reason and it was a problem lots of people had, Google Yosemite Wifi problems, it took Apple 6-8 months to completely get rid of Wifi problems.
Mojave was by far Apples best OS, stable right from the first beta, no other beta or even a release was that stable, not even the Snow Leopard came close, especially not in the first few .X releases.
Some of the early OS X versions lacked a lot of features, it wasn't until Tiger before it became good.


*= Catalina is macOS, not OS X
Score: 3 Votes (Like | Disagree)

Popular Stories

Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. In his Powe...
Apple Logo Black

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by
The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
We are still waiting for the iOS 26.3 Release Candidate to come out, so the first iOS 26.4 beta is likely still at least a week or two away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
Apple MacBook Pro M4 hero

New MacBook Pros Reportedly Launching Alongside macOS 26.3

Sunday February 1, 2026 5:42 am PST by
Apple is planning to launch new MacBook Pro models with M5 Pro and M5 Max chips alongside macOS 26.3, according to Bloomberg's Mark Gurman. "Apple's faster MacBook Pros are planned for the macOS 26.3 release cycle," wrote Gurman, in his Power On newsletter today. "I'm told the new models — code-named J714 and J716 — are slated for the macOS 26.3 software cycle, which runs from...
iOS 26 Home Feature

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by
In 2022, Apple introduced a new Apple Home architecture that is "more reliable and efficient," and the deadline to upgrade and avoid issues is fast approaching. In an email this week, Apple gave customers a final reminder to upgrade their Home app by February 10, 2026. Apple says users who do not upgrade may experience issues with accessories and automations, or lose access to their smart...