|User Approved Kernel Extension Loading||
User Approved Kernel Extension Loading is no longer disabled on devices enrolled in MDM. If you use enrollment initiated by DEP (Device Enrollment Program), or User Approved MDM enrollment, you can apply the Kernel Extension Policy to manage User Approved Kernel Extension Loading. Learn more about changes to kernel extensions in macOS High Sierra.
All MDM enrollments completed prior to upgrading to macOS 10.13.4 are automatically converted to User Approved Enrollments. MDM enrollments completed on macOS 10.13.4 and later can be converted to User Approved Enrollments. Open Profiles preferences, then select the enrollment profile. Click Approve on the right, then follow the prompts. These steps aren't required for enrollments that were initiated by DEP.
Prepare your institution for macOS High Sierra 10.13.4
If you're a system administrator, you should review this list and prepare for changes before updating to macOS High Sierra 10.13.4.