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macOS 10.15.4 is an update to macOS 10.15 (Catalina), released on March 25, 2020 by Apple Inc.

New features

This update adds the following features:

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 DisplayPort or HDMI
  • OAuth authentication support with Outlook.com accounts for improved security
  • CalDav migration support when upgrading to iCloud reminders on a secondary device 
  • Addresses an issue where text copied between apps may appear invisible when Dark Mode is active
  • Resolves an issue in Safari where a CAPTCHA tile may display incorrectly 
  • Fixes an issue where you may receive notifications for updated or completed reminders
  • Fixes an issue with screen brightness for the LG UltraFine 5K display after waking from sleep

Enterprise content:

  • Apple Push Notification Service traffic now uses a web proxy when specified in a PAC file
  • Resolves an issue where updating the login keychain password after resetting a user password would cause a new keychain to be created
  • After enabling ”Search directory services for certificates” in Keychain Access preferences, searching by email address in Keychain Access or Mail now locates a user certificate stored in directory services
  • When setting the DisableFDEAutoLogin key in com.apple.loginwindow, you can now sync your FileVault password with the Active Directory user password after updating the user password
  • Reinstates the ability to update or restore iOS, iPadOS, or tvOS devices by dragging .ipsw files to the device in an Apple Configurator 2 window
  • Addresses an issue where sending the EraseDevice MDM command might not cause the device to be erased
  • When logging in as an Active Directory user after using deferred FileVault enablement, the user is now prompted for their password to enable FileVault

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

External Links

Mac OS X   Mac OS X / macOS versions
Mac OS X Server : Server 1 (Rhapsody / Hera)
Mac OS X Developer Preview : DP1 | DP2 | DP3 | DP4
Mac OS X Public Beta : Public Beta (Kodiak)
Mac OS X 10.0 (Cheetah) : 10.0.0 | 10.0.1 | 10.0.2 | 10.0.3 | 10.0.4
Mac OS X 10.1 (Puma) : 10.1.0 | 10.1.1 | 10.1.2 | 10.1.3 | 10.1.4 | 10.1.5
Mac OS X 10.2 (Jaguar) : 10.2.0 | 10.2.1 | 10.2.2 | 10.2.3 | 10.2.4 | 10.2.5 | 10.2.6 | 10.2.7 | 10.2.8 (6R73) · 10.2.8 (G5)
Mac OS X 10.3 (Panther) : 10.3.0 | 10.3.1 | 10.3.2 | 10.3.3 | 10.3.4 | 10.3.5 | 10.3.6 | 10.3.7 | 10.3.8 | 10.3.9
Mac OS X 10.4 (Tiger) : 10.4.0 | 10.4.1 | 10.4.2 | 10.4.3 | 10.4.4 | 10.4.5 | 10.4.6 | 10.4.7 | 10.4.8 | 10.4.9 | 10.4.10 | 10.4.11
Mac OS X 10.5 (Leopard) : 10.5.0 | 10.5.1 | 10.5.2 | 10.5.3 | 10.5.4 | 10.5.5 | 10.5.6 | 10.5.7 | 10.5.8
  Mac OS X 10.6 (Snow Leopard) : 10.6.0 | 10.6.1 | 10.6.2 | 10.6.3 | 10.6.4 | 10.6.5 | 10.6.6 | 10.6.7 | 10.6.8
Mac OS X 10.7 (Lion) : 10.7.0 | 10.7.1 | 10.7.2 | 10.7.3 | 10.7.4 | 10.7.5
  Mac OS X 10.8 (Mountain Lion) : 10.8.0 | 10.8.1 | 10.8.2 | 10.8.3 | 10.8.4 | 10.8.5
OS X 10.9 (Mavericks) : 10.9.0 | 10.9.1 | 10.9.2 | 10.9.3 | 10.9.4 | 10.9.5
OS X 10.10 (Yosemite) : 10.10.0 | 10.10.1 | 10.10.2 | 10.10.3 | 10.10.4 | 10.10.5
OS X 10.11 (El Capitan) : 10.11.0 | 10.11.1 | 10.11.2 | 10.11.3 | 10.11.4 | 10.11.5 | 10.11.6
macOS 10.12 (Sierra) : 10.12.0 | 10.12.1 | 10.12.2 | 10.12.3 | 10.12.4 | 10.12.5 | 10.12.6
macOS 10.13 (High Sierra) : 10.13.0 | 10.13.1 | 10.13.2 | 10.13.3 | 10.13.4 | 10.13.5 | 10.13.6
macOS 10.14 (Mojave) : 10.14.0 | 10.14.1 | 10.14.2 | 10.14.3 | 10.14.4 | 10.14.5 | 10.14.6
macOS 10.15 (Catalina) : 10.15.0 | 10.15.1 | 10.15.2 | 10.15.3 | 10.15.4 | 10.15.5 | 10.15.6
macOS 11 (Big Sur) : 11.0
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