How to find out the version of the panel?

You can do it the following ways:

• in the panel interface – in the lower left corner;

• in the server terminal, using the info utility.
  Example of use in Ubuntu 22.04:

  root@fobos:/# /usr/local/mgr5/sbin/licctl info ispmgr

  Example of the command output:

  OS: Ubuntu 22.04 (x86_64)
  Manager: ispmgr (6.62.0-2022.11.07_14:47)
  ID: 0
  Name: Trial License
  Expire: 2022-11-25
  Supported: no
  Update expire: 2022-11-30
  

  Where in the Manager string: ispmgr (6.62.0-2022.11.07_14:47) – ispmanager panel of version 6.62.0 released 2022.11.07.