Blargh. Another OSS project that doesn't expose any kind of version control (7zip is the worst offender). I know, gift horse etc etc but it does make it hard to track the history / future of the project.

Also looks like it hasn't been updated since 2011.

Why does this support telnet? Just seems crazy to me. Is it on by default? That would be a violation of any sane security policy pretty much anywhere. Seems like a serious edge case requirement and odd to bundle with SSH. This is like buying a new car but then having the dealer give you a free horse with your purchase.

Telnet has the unique advantage of having an implementation for the opposite part on any TCP/IP compatible system without external libraries, crypto etc. and that you can recreate both a server and a client in literally an hour with nothing but a C compiler and an ordinary libc.