I hope this is an easy response.
How easy or what is the process when new releases come out to update our community?
The simple example:
Drupal for instance, the site itself goes in one spot and is really simple to update files. The user images and things that never need to be changed remain in separate directories that are never updated.
Addon modules also have separate directories which never need main and user content .
So when a new release is added, you simply just drop that new version into the root or add-on directories and you or golden.
Other than the exception of a few minor files changes, Vbulletin, always includes the entire lump and you need to be careful you don't overwrite or forget to do something. I hate that. Its always stressful for me compared to Drupal
How is it for xenforo?