Other macOS 10.15.4 Updates
- 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.
- Resolves an issue where text copied between apps may appear invisible when Dark Mode is active.
- Fixes an issue in Safari where a CAPTCHA tile may display incorrectly.
- Resolves an issue where Reminders may send notifications for completed reminders.
- Fixes an issue with screen brightness for the LG UltraFine 5K display after waking from sleep.
macOS 10.15.4 is likely the last update to macOS Catalina Apple will roll out. Going forward, the company will focus on macOS 10.16, which is slated for release later this year.