title: Renci.SshNet preaccept key with known fingerprint
body: <p>I have some code that connects to a third party with SFTP using renci.sshnet library. The third party is updating their key on the server and has sent the updated fingerprint. I have searched high and low on the inter webs and can not find how to implement this new fingerprint so our app will continue to connect when the key change happens in a couple of weeks. The app is non interactive and would not allow me to accept the new key when connecting even if that were an option.</p>
  <p>Could someone help me find where this fingerprint should be put so that my app will accept the new key automatically?</p>