Would be surprising; even the iPhone 5s from Fall 2013 is equipped with the Secure Enclave and is getting iOS 12. Including the feature to disable USB communica

Would be surprising; even the iPhone 5s from Fall 2013 is equipped with the Secure Enclave and is getting iOS 12. Including the feature to disable USB communication pins after 1 hour without the user's passcode. A feature aimed squarely at disabling Cellebrite from uploading their brute-force firmware.