Appleが、macOS Catalina 10.15.5 追加アップデート をリリースしていました。・・・再起動が必要です。
- macOS Catalina 10.15.5 supplemental update provides important security updates and is recommended for all users.
- Some features may not be available for all regions, or on all Apple devices. 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/HT20122
