Has anybody gotten an application with the system extension install entitlement to work on 10.14 and below? We have to support 10.14 obviously, but if we include the system extension install entitlement (com.apple.developer.system-extension.install) in our application's Info.plist (the applicatoin that contains the system extension) it immediately crashes with a bad code signature on 10.14 and below. The application works (and system extension installs) on 10.15.
If the entitlement isn't necessary, how do we get the extension to install on 10.15? We haven't gotten the extension to install correctly with SIP enabled without using this entitlement.