Question: what are the smb versions?
Answer: SMB / CIFS / SMB1. Barry Feigenbaum originally designed SMB at IBM in early 1983 with the aim of turning DOS INT 21h local file access into a networked file system. ... 
SMB 2.0. ... 
SMB 2.1. ... 
SMB 3.0. ... 
SMB 3.0. ... 
SMB 3.1. ... 
Samba. ... 
Netsmb.