MacOS Catalina 10.15.3 Released

macOS 10.15.3 Update   –– Restart Required

The macOS Catalina 10.15.3 update improves the stability, reliability and security of your Mac, and is recommended for all users.

This update: 

  • Optimizes gamma handling of low gray levels on Pro Display XDR for SDR workflows when using macOS
  • Improves multi-stream video editing performance for HEVC and H.264 encoded 4K video on the 16-inch MacBook Pro (2019)

For more detailed information about this update, please visit: https://support.apple.com/kb/HT210642

For detailed information about the security content of this update, please visit: https://support.apple.com/kb/HT201222