How to define ssh version in Mikrotik
Not sure what you mean? The ssh server version mikrotik uses is v2.
Do you mean this…
More Secure SSH access
RouterOS utilises stronger crypto for SSH, most newer programs use it, to turn on SSH strong crypto:
/ip ssh set strong-crypto=yes
Ok fine. Thanks for your reply. So how can I find out the SSH version.
what version?
Already answered, Protocol version is 2
vmunix ~ $ telnet hex 22
Trying 1xx.xx.xx.xx...
Connected to hex.
Escape character is '^]'.
SSH-2.0-ROSSSH
^]
telnet> Connection closed.
No, this is RouterOS insternal app version 
What do you want to know specifically ?