When I read the release notes for samba 4.11.0 i noticed the following:
"SMB1 is officially deprecated and might be removed step by step
in the following years. If you have a strong requirement for SMB1
(except for supporting old Linux Kernels), please file a bug
at https://bugzilla.samba.org and let us know about the details."
I use an old lasercuttingmachine which is running Windows NT 4.0.
To operate the machine gets its files from a samba server 4.10.10.
I think I need support for SMB1 in the future to keep the machine functioning and samba up to date.
*** This bug has been marked as a duplicate of bug 14273 ***