Before next steps please always make a system backup via SAMBA or whole virtual machine backup as described below:
Find the right steps for your current version
When all necessary components are ready to update the system, you will see an upgrade console window to see the upgrade process status.
During preparation of necessary components to update the system you can loose the access to the system.
Please be patient and wait some minutes till the update process starts.
It is not possible to upgrade the version 1.9.1 to the version 1.10.0 via online upgrade process due to the transition from Linux Debian version 7 to version 9.
Please follow this offline procedure (import of the database to a fresh new Access Commander 1.10.0) to uprade the system to the version 1.10.0.
Software Upgrade from Access Commander 1.9.1 to Access Commander 1.10
It is possible to upgrade the Access Commander only up to the version 1.9.1 via the online procedure.
When you are on the version 1.9.1 successfully, you can proceed the procedures above to go to the version 1.10.0 and after that to the latest one sequentialy.