The newer version doesn't have obligatory a configuration file and a database. We now only have a database and a powerful command line to interact with it. Although, most options can be changed through the web interface.
You can keep using a configuration file for the options described by the main command. To import from a previous version, please run:
filebrowser upgrade --database=/path/to/new.db \
You don't necessarily need to indicate the old.config path. If you don't, we'll use the defaults we had for each option in the previous version.
Notice that this command won't import the shareable links because they are incompatible with the new version. In the previous version, if a user wasn't allowed to go to /path/foo but they had permissions to access /path then, by sharing or downloading the directory, they would have access to /path/foo so we needed to change the internal structure of shareable links to fix this issue.
Now that you have the new database up and running, please check if the config looks good for you and if the users also look good via the following commands: