Upgrading from ANY VERSION to 20.1
As always, make a full backup of your existing installation before upgrading.
You will have to do a full upgrade to 20.1.
You can use the Windows Upgrade tool to do a full upgrade.
FileCloud provides a script you can run to perform a full upgrade to version 20.1.
Upgrading FileCloud from 17.3 or older to 20.1 in Linux
If you are using Ubuntu versions earlier than 16.04 or Older versions of Red Hat/CentOS/Fedora, there is no script for upgrading your installation to 20.1.
You will need to migrate your FileCloud installation manually to Ubuntu 16.04 or Red Hat/CentOS/Fedora that supports PHP 7.1 or greater with the new MongoDB driver to use FileCloud 20.1.
To upgrade systems running ServerLink, the following steps should be taken: