Download Security Update 2019-001 (High Sierra)
System Requirements: macOS 10.13
File Size: 1.83 GB
Security Update 2019-001 is recommended for all users and improves the security of macOS.
For more information on the security content of this update see: http://support.apple.com/kb/HT201222
See http://support.apple.com/kb/HT5044 article for details on how to verify the authenticity of this download.
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