Sorry for the spamminess of my posting, but I discovered that the problem wasn't fixed.
Apparently, the upgrade obliterated my old /etc/samba/smb.conf file.
When I restored the smb.conf file from backup, my settings were back, including my Windows network as well as my shared printer.
So this is a bug in the upgrade that overwrites the smb.conf file. I'm reopening the bug.
-glass.dimly
Sorry for the spamminess of my posting, but I discovered that the problem wasn't fixed.
Apparently, the upgrade obliterated my old /etc/samba/smb.conf file.
When I restored the smb.conf file from backup, my settings were back, including my Windows network as well as my shared printer.
So this is a bug in the upgrade that overwrites the smb.conf file. I'm reopening the bug.
-glass.dimly