hi all,
Looking at 1.4.x, it appears that the ‘set vpn sstp ssl key-file’ command has been dropped. This pull request covers it, but the response which is ‘it uses PKI’ doesnt really explain how that replaces the command (or I just dont understand it 
).
In 1.3.x we have been using Letsencrypt with Certbot to renew public certs successfully, but this does not appear possible on 1.4.x.
How do we achieve this on 1.4.x?