I upgraded my host PC, so the host key has changed. I need to get Meerkat to accept the new host key. Where is its known_hosts file stored?
known_hosts file is stored in Home > .ssh. You can edit it with a text editor and remove offending lines to get Meerkat/ssh to re-prompt you to save the keys. I'll be looking into how difficult this might be from Meerkat itself (automatically).