macOS Catalina updates improve the stability, performance, or compatibility of your Mac and are recommended for all Catalina users. To get these updates, choose System Preferences from the Apple menu , then click Software Update. Learn more about updating the software on your Mac.

Open the App Store app on your Mac. Click Updates in the App Store toolbar. Use the Update buttons to download and install any updates listed. When the App Store shows no more updates, the installed version of macOS and all of its apps are up to date. That includes Safari, iTunes, iBooks, Messages, Mail, Calendar, Photos, and FaceTime.

Apple also introduced new formats for video and photos in this version. These formats compress data - that’s a benefit as files can get huge with ever-rising resolutions. They added support for virtual reality headsets as well. Besides that, when it comes to Safari, Mac search engine, there are some notable improvements with the update.
Download Chrome for Mac. For Mac OS X 10.10 or later. This computer will no longer receive Google Chrome updates because Mac OS X 10.6 - 10.9 are no longer supported.
Update Office from the Mac App Store. If you downloaded Office from the Mac App Store, and have automatic updates turned on, your apps will update automatically. But you can also manually download the updates: Open the Mac App Store from your Dock or Finder.
For Mac OS X 10.10 or later. This computer will no longer receive Google Chrome updates because Mac OS X 10.6 - 10.9 are no longer supported. This computer will no longer receive Google Chrome.

For details about the security content of these updates, see Apple Security Updates.

macOS 10.15

macOS Catalina 10.15.7

macOS Catalina 10.15.7 provides important security updates and bug fixes for your Mac.

Resolves an issue where macOS would not automatically connect to Wi-Fi networks
Fixes an issue that could prevent files syncing through iCloud Drive
Addresses a graphic issue that may occur on iMac (Retina 5K, 27-inch, 2020) with Radeon Pro 5700 XT

Some features may not be available for all regions, or on all Apple devices.

macOS Catalina 10.15.6

macOS Catalina 10.15.6 introduces local news in your Today feed in Apple News and improves the security and reliability of your Mac.

Apple News

Local news in your Today feed provides extensive coverage of San Francisco, the Bay Area, Los Angeles, Houston, and New York City
More stories available from local news providers with a subscription to Apple News+
Your daily newsletter from Apple News can now be personalized with stories that reflect your interests

This update also includes bug fixes and other improvements.

Adds a new option to optimize video streaming on HDR-compatible Mac notebooks for improved battery life
Fixes an issue where the computer name may change after installing a software update
Resolves an issue where certain USB mouse and trackpads may lose connection

Enterprise content:

When using the built-in keyboard with a non-U.S. keyboard layout on some Mac models, passwords with certain characters are no longer rejected at the Mac login window
Allows command-line tools that don't use CFNetwork, such as curl(1), to continue connecting to TLS servers that use certificates issued by the recently expired AddTrust External CA Root
Major new releases of macOS can be hidden when using the softwareupdate(8) command with the --ignore flag, if the Mac is enrolled in Apple School Manager, Apple Business Manager, or a user-approved MDM.
This change also affects macOS Mojave and macOS High Sierra after installing Security Update 2020-004.

Some features may not be available for all regions, or on all Apple devices.

macOS Catalina 10.15.5

macOS Catalina 10.15.5 introduces battery health management in the Energy Saver settings for notebooks, a new option to disable automatic prominence in Group FaceTime calls, and controls to fine-tune the built-in calibration of your Pro Display XDR. The update also improves the stability, reliability, and security of your Mac.

Battery Health Management

Battery health management to help maximize battery lifespan for Mac notebooks
Energy Saver preference pane now displays battery condition and recommends if the battery needs to be serviced
Option to disable battery health management
For more information, please visit https://support.apple.com/kb/HT211094

FaceTime Prominence Preference

New option to control automatic prominence on Group FaceTime calls, so video tiles do not change size when a participant speaks

Calibration Fine-Tuning for Pro Display XDR

Controls to fine-tune the built-in calibration of your Pro Display XDR by adjusting the white point and luminance for a precise match to
your own display-calibration target

This update also includes bug fixes and other improvements:

Fixes an issue that may prevent Reminders from sending notifications for recurring reminders
Addresses an issue that may prevent password entry on the login screen
Fixes an issue where System Preferences would continue to show a notification badge even after installing an update
Resolves an issue where the built-in camera may not be detected when trying to use it after using a video conferencing app
Addresses an issue for Mac computers with the Apple T2 Security Chip where internal speakers may not appear as a sound output device in Sound preferences
Fixes a stability issue with uploading and downloading media files from iCloud Photo Library while your Mac is asleep
Resolves a stability issue when transferring large amounts of data to RAID volumes
Fixes an issue where the Reduced Motion Accessibility preference did not reduce the speed of animations in a Group FaceTime call

Enterprise content:

Improves performance on certain Mac models when enabling hardware acceleration in GPU-intensive apps such as those used for video conferencing
Addresses an issue where Microsoft Exchange accounts were unable to sign in during account setup when using Conditional Access
Apple Push Notification Service traffic now uses a web proxy when specified in a PAC file via the Proxies payload
Resolves an issue that prevented some displays connected to MacBook Pro (16-inch, 2019) from waking from sleep when the Mac wakes
Major new releases of macOS are no longer hidden when using the softwareupdate(8) command with the --ignore flag
This change also affects macOS Mojave and macOS High Sierra after installing Security Update 2020-003.

macOS Catalina 10.15.4

macOS Catalina 10.15.4 introduces iCloud Drive folder sharing, Screen Time communication limits, Apple Music time-synced lyrics view, and more. The update also improves the stability, reliability, and security of your Mac.

Finder

iCloud Drive folder sharing from Finder
Controls to limit access only to people you explicitly invite, or to grant access to anyone with the folder link
Permissions to choose who can make changes and upload files, and who can only view and download files

Screen Time

Communication limits for controlling who your children can communicate with and be contacted by throughout the day and during downtime
Playback control of music videos for your children

Music

Time-synced lyrics view for Apple Music, including the ability to jump to your favorite part of a song by clicking a line in lyrics view

Safari

Option to import Chrome passwords into your iCloud Keychain for easy AutoFill of your passwords in Safari and across all your devices
Controls for duplicating a tab and for closing all tabs to the right of the current tab
HDR playback support on compatible computers for Netflix content

App Store with Apple Arcade

Universal Purchase support enables the use of a singular purchase of a participating app across iPhone, iPod touch, iPad, Mac, and Apple TV

Pro Display XDR

Customized reference modes that you can tailor to specific workflow needs by selecting from several color gamut, white point, luminance, and transfer function options

Accessibility

Head pointer preference for moving a cursor on the screen based on the precise movements of your head

This update also includes bug fixes and other improvements:

High Dynamic Range output to HDR10-compatible third-party displays and TVs connected with

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