Hello Blick,
you may add a section in the Wiki for an upgrading procedure (e.g. from 2.4.4. to a higher version):
? Wich files are to be replaced (maybe the whole distribution)?
? When replacing/upgrading it is important to go into the replaced files with a text editor and do all the changes that are done to earlier files again (e.g. gauges-ss.css, gauge styles and counter settings in gauge.js, changes in languages.min.js and so on).
Cheers,
Reinhard