This version introduces a breaking change. Namely it fixes a mistake where the client connects to the relay and transmits information (the relay password, the relay ports) in plaintext over the connection. Now, this is fixed so that the relay and client use PAKE to establish a secure connection and then all further information is transmitted securely encrypted.
Changelog
5e37a30 throw error when submitting bad passphrase to relay
c3adc29 encrypt external ip
5fce2a2 encrypt external ip
d5846bc encrypt all communication with relay