I have a Linux server and have Dropbox successfully installed and running via their instructions here: https://www.dropbox.com/install?os=lnx including using the python script for running from the command line.
I've today checked on the status of it on the server and got the following message
You're using an old version of Dropbox. Please update within the next 8 days to continue using Dropbox. https://www.dropbox.com/downloading?from_client=True
I can't find any instructions on how to upgrade. The link just downloads the client.
I'm not very experienced with terminal commands, so it's not obvious to me how to do this right.