macOS Catalina: Apple released 10.15.4 supplemental update

macOS Catalina: Apple released 10.15.4 supplemental update

From the desert to the coast: macOS Mojave, the next major version of the Mac operating system, called macOS, Catalina. 2019 WWDC keynote revealed by Apple in June, Catalina offers some important new features to move the OS forward.

In this FAQ, we will give you the General data, on macOS Catalina: When it release, which Macs are compatible, etc. We have more details to this article as soon as they are available.

editor’s note: Updated 3/24/20 with information about the macOS Catalina 10.15.4 update.

[ read More: Learn more about macOS Catalina ]

The latest: Apple macOS Catalina 10.15.4 supplemental update

Apple has released an update for macOS Catalina, which fixes a bug that didn’t allow FaceTime calls with iOS devices and Macs with older versions of operating systems.

Here are the release notes for the update:

macOS Catalina 10.15.4 supplemental update improves the stability and security of your Mac.



  • Fixes an issue in which Mac Computer with macOS Catalina 10.15.4 non-FaceTime calls with devices with iOS 9.3.6 and earlier or OS X El Capitan 10.11.6 and earlier

    was able to participate

  • the

  • resolves an issue, where there may be a password-query for a Office 365 account

  • the

  • Fixes an issue where MacBook Pro (Retina, 13-inch, 2020) reacts in the Setup wizard, or when you disconnect and again a 4K or 5K to connect to external display

  • the

  • resolves a Problem where a USB-C port on your Mac to stop responding

Before installing the Updates, you should have a backup copy, you Mac. These come in handy if you find that the update are your Macs problems, and you need to restore your data.

the update, you will need an Internet connection. Click on the Apple menu and select ” About This Mac. In the “Overview” section of the window that is displayed, click the Software Update button. Your Mac will check for the update, and once it is found, you can proceed. The installation will take several minutes and requires you to restart your Mac to restart.

when macOS Catalina will be released?

MacOS Catalina was on 7. October.

How do I get macOS Catalina?

Apple provides macOS Catalina by the Mac App Store. The download of several gigabytes size, and the installation will take several minutes, so use a reliable internet connection and you will not be able to use the Mac for anything else than the installation.

Updates to Catalina via the system setting “software update”.

macos catalina backup Apple

you need to use the Finder, now you can sync your phone with your Mac.

If you are a DJ, you should not upgrade to Catalina yet. According to a report by The Verge, Apple has confirmed that DJ apps will not work on Catalina, because Apple reduced the XML-file support in the music app. XML files are help of DJ apps that can organize music libraries. In Catalina, the music app uses a new library format.

How is cost a lot of macOS Catalina?

Nothing. It is free of charge.

What version of macOS Catalina? is

Officially, it macOS is 10.15 Catalina.

What Macs are compatible with macOS Catalina?


  • MacBook (2015 or newer)
  • the

  • MacBook Air (2012 or newer)
  • the

  • MacBook Pro (2012 or newer)
  • the

  • Mac mini (2012 or newer)
  • the

  • iMac (2012 or newer)
  • the

  • iMac Pro (2017 or later)
  • the

  • Mac Pro (2013 or newer)

If your Mac is not on this list, you will continue to macOS Sierra or High Sierra.

What is macOS Catalina most important new features?

macos catalina music Apple

The new music app will keep all your playlists and songs.

Catalina has more new features than we have seen in recent macOS upgrades. There are a few new apps and some other apps with important new features and UI versions. Performance has been improved and the user friendliness is increased. Here is a short list of some of the new features and apps.


  • project-catalyst: iPad apps, which have been brought to the Mac
  • the

  • music, Podcasts, and Apple TV apps, replace the iTunes app
  • the

  • improvements in the photos app
  • the

  • improvements to the notes app
  • the

  • blocks Three new features in Apple Mail: mute thread, a sender, and terminate
  • the

  • Safari-updates
  • the

  • A revamped reminders app
  • the

  • A new Find My app combines the functions of Find My iPhone and Find My Friends
  • the

  • Screen-Time for Mac
  • the

  • a sidecar, for the use of an iPad as an external display
  • the

  • voice control

What are other macOS Catalina features I should know about?

The functions listed above are the ones that get the most attention, but there are a lot of other features in the Catalina that you’ll find useful.


  • Better tools for managing your Apple-account
  • the

  • QuickTime Player has a improved picture-in-picture, Film inspector, and more
  • the

  • iCloud Drive folder free
  • the

  • has The ability to recover macOS from a snapshot
  • the

  • Improved support for international languages

What is all this stuff about how iPad apps run on the Mac?

This is what Project Catalyst is all about. In its 2018 Worldwide Developers Conference, Apple has announced that it is the task of software developers the tools to your iOS apps on the Mac. In the case of the 2019 WWDC, Apple this addressed as a project catalyst, and we will begin to see, on the Mac, several Apple and third-party apps on the  iPad.

macos catalina-tv-app Apple

The TV app is where you will find your movies and TV shows now.

What is the deal with 32-bit and 64-bit apps and macOS Catalina?

One of the most important changes in macOS Catalina, the software must be running a 64-bit to. 32-bit apps will not run on Catalina. (32 – and 64-bit have to do with the linear address space a apps the amount can use of RAM, an app, and other features.)

If you have a really old app that you use, and it has not been updated in a while, there is a chance it could be a 32-bit app that will not run in Catalina. If your software is up-to-date, you are probably using 64-bit versions.

If you have an app, which is absolutely essential to their work to check to see if there is a 64-bit app or not. Here is how. It is a 32-bit app, you need to find a fix, can you find another app to use, or set the update on Catalina.

Can I try the macOS Catalina beta?

continue to program was published after the Catalina-golden master. You will receive the beta Version of the Catalina updates.

the developer beta of macOS Catalina get through the Apple Developer Program. The developer beta costs $99 per year.

Apple also has a free beta released to the General public. Since the software is not beta, it is as reliable as the officially released versions of the General public, and it could cause problems on your Mac. The public beta is a few cycles behind-the-developer-beta, so they are the same.

If you, the beta, and later decide that you want to use it more, you can go back to try the release of macOS Catalina.

Why it is called the new macOS ‘Catalina’?

the name of Apple’s macOS, according to the California locations, a method that in 2014 with OS X Mavericks. Santa Catalina Island is located about 29 miles off the coast of Long Beach, California.

In 2015, Apple will call the decided to switch to the Mac operating system “OS X” to “macOS.”

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Released on Thu, 09 Apr 2020 14:41:00 +0000

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