The version of the ssh protocol used by openssh in -current has been
modified, and now defaults to v2 of the protocol.  This may not be
what you are expecting, and you may see strange consequences when
trying to connect.

Whilst you are advised to move to version 2 of the protocol, for
security reasons and because traffic can multiplex through a
connection, it may be inconvenient to do so right now.

To connect using version 1 of the protocol using ssh, add

Host *
   Protocol 1,2

to your ~/.ssh/config on the client side, or use pkgsrc/security/fressh

Regards,
Alistair