SystemExtensions macOS 10.14 to 10.15 API Differences

SystemExtensions.h
Added OSSystemExtensionErrorDomain
Added OSBundleUsageDescriptionKey
Added NSSystemExtensionUsageDescriptionKey
Added OSSystemExtensionErrorCode
Added OSSystemExtensionErrorUnknown
Added OSSystemExtensionErrorMissingEntitlement
Added OSSystemExtensionErrorUnsupportedParentBundleLocation
Added OSSystemExtensionErrorExtensionNotFound
Added OSSystemExtensionErrorExtensionMissingIdentifier
Added OSSystemExtensionErrorDuplicateExtensionIdentifer
Added OSSystemExtensionErrorUnknownExtensionCategory
Added OSSystemExtensionErrorCodeSignatureInvalid
Added OSSystemExtensionErrorValidationFailed
Added OSSystemExtensionErrorForbiddenBySystemPolicy
Added OSSystemExtensionErrorRequestCanceled
Added OSSystemExtensionErrorRequestSuperseded
Added OSSystemExtensionErrorAuthorizationRequired
Added OSSystemExtensionReplacementAction
Added OSSystemExtensionReplacementActionCancel
Added OSSystemExtensionReplacementActionReplace
Added OSSystemExtensionRequestResult
Added OSSystemExtensionRequestCompleted
Added OSSystemExtensionRequestWillCompleteAfterReboot
Added OSSystemExtensionRequest
Added +[OSSystemExtensionRequest activationRequestForExtension:queue:]
Added +[OSSystemExtensionRequest deactivationRequestForExtension:queue:]
Added OSSystemExtensionRequest.delegate
Added OSSystemExtensionRequest.identifier
Added OSSystemExtensionProperties
Added OSSystemExtensionProperties.URL
Added OSSystemExtensionProperties.bundleIdentifier
Added OSSystemExtensionProperties.bundleVersion
Added OSSystemExtensionProperties.bundleShortVersion
Added OSSystemExtensionRequestDelegate
Added -[OSSystemExtensionRequestDelegate request:actionForReplacingExtension:withExtension:]
Added -[OSSystemExtensionRequestDelegate requestNeedsUserApproval:]
Added -[OSSystemExtensionRequestDelegate request:didFinishWithResult:]
Added -[OSSystemExtensionRequestDelegate request:didFailWithError:]
Added OSSystemExtensionManager
Added OSSystemExtensionManager.sharedManager
Added -[OSSystemExtensionManager submitRequest:]