How can I ask in stack that after updating CIFS samba client stopped working?

Question

after "apt dist-upgrade" cifs stopped working.

When working I had:

:$ modinfo cifs
...
version:        2.40
...

Now (didnt working):

:$ modinfo cifs
...
version:        2.45
...

I tried mounting with samba version:

sudo mount -t cifs //192.168.1.50/backup /mnt/Backup -o username=usuario,password=contraseña,vers=x.0

This is the /etc/fstab content (no changes after and before failing):

//192.168.1.50/backup /mnt/Backup cifs x-systemd.automount,_netdev,credentials=/etc/samba/samba-credential.conf,uid=1000,gid=1000 0 0

The samba credential file still exists and have 0600 permission.

When I do a mount -a it gets this error:

sudo mount -a
mount error(95): Operation not supported
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) and kernel log messages (dmesg)

And the dmesg get this all times the same code:

[ 1292.567834] CIFS: Attempting to mount //192.168.1.50/backup
[ 1292.640457] CIFS: VFS: parse_reparse_point: unhandled reparse tag: 0x9000e01a
[ 1292.640484] CIFS: VFS: cifs_read_super: get root inode failed

The samba version its still the same than before upgrading:

$ smbclient --version
Version 4.17.8-Raspbian

Many thanks.