Fixed
- SSH: connecting with an RSA key to an older server — notably OpenWrt routers
running dropbear before 2020.79 — was rejected even though the server accepts
the key. The signature algorithm is now taken from what the server says it
supports (#85). - SSH: a server that accepted the connection but never answered the
authentication request left the app on "Authenticating" forever. It now stops
with an explanation instead of waiting indefinitely. - Plugins: the built-in plugins reported an update was available when their code
was already identical to the published one.