[Samba] future of non-AD samba?

[Klaus Hartnegg]

Hi,

We plan to upgrade servers, and wonder which configuration is 
future-proof. Must we switch to AD, or will a new Standalone Server also 
continue to serve Windows 10 clients?

Several messages suggest that new Windows sometimes cannot access old Samba.

What exactly is the cause? Is it Standalone Server versus Domain, is it 
old-style PDC versus AD, or is it SMB protocol version 1 versus 2 or 3?

Btw. I'm currently running Samba 4 as PDC and Samba 3.6 as standalone 
server, both are accessed from Linux, Win7, and Win-1709 (upgraded from 
older versions). The only problem so far has been that new Ubuntu 
defaults to disabled SMB1.

thanks,
Klaus