Secure Boot - MOK enrollment (Routes A and B)

Both enrollment routes work identically on 1.5 and 1.6: the Secure Boot config page, the enrollment kit and the boot menu entry are all present on either version. The only difference is the Setup Mode alternative, which exists only on 1.6.

Which version am I on?

Check FOG Configuration → FOG Settings → General → FOG_VERSION in the web UI, or the version string printed at the top of installfog.sh.