When there is new version of Badger you will be able to easy upgrade it if you do not change main files of this module.
There are several files that you can change and it will not be overwritten on next version upgrade (copy).
These files are:
In other words.. change only these files and you will get next version easily.
Yes you can change all files in badger module if you don't like new versions (or just don't believe in it).