Apple updates its Platform Security Guide with details about M1 Macs The guide officially says Apple will stop supporting kernel extensions in future versions of macOS Apple rolled out an updated version of its ‘Platform Security Guide,’ which offers a comprehensive overview of the latest security changes and improvements across the company’s software ecosystems. The guide details changes across iOS 14, iPadOS 14, macOS, Big Sur, tvOS 14, watchOS 7 and more. MacRumorspublished a breakdown of the changes to the guide. For example, the guide includes security details about Safari’s Password Monitoring feature. Available on iOS 14 and macOS Big Sur, Password Monitoring automatically checks if saved passwords may have been exposed in a data breach.