The wiki says (https://wiki.samba.org/index.php/Samba4/Releases/4.0.0beta2#Some_major_user-visible_changes_include:):
> The 'samba-tool domain samba3upgrade' command is now called 'samba-tool domain
> classicupgrade' and now creates users and groups with the posixAccount
> objectClass and uidNumber and gidNumber values.
This sound like the 'classicupgrade' option replaces the 'samba3upgrade' option in samba-tool.
But samba-tool in beta4 shows both options (with the same description):
# /usr/local/samba/bin/samba-tool domain help
Usage: samba-tool domain <subcommand>
classicupgrade - Upgrade from Samba classic (NT4-like) database to Samba AD DC database.
samba3upgrade - Upgrade from Samba classic (NT4-like) database to Samba AD DC database.
If this options do different things, then the short description in samba-tool should be adapted. If it's the same, 'samba3upgrade' can be removed from there.
The old name is still available for backwards compatibility. I've hidden the 'samba3upgrade' command in the help output.
Patch has been pushed to autobuild-v4-0-test also.