Could you protect cache file against lib updates ?

I have to manually check version of ``tldextract`` to delete the file when ``tldextract`` is updated.
What is the rationale of not doing this on the ``tldextract`` side ? (by storing the version of tldextract in
the cache file, and simply removing the file and replace it if it doesn't match current version).

Providing this mecanism externally seems really odd to me : I'd like to keep the cache if usable, I'm ready to make the script that will update it automatically every X elapsed time. But in current situation, it seems I have to also check that the cache is usable by ``tldextract``.

What are your thoughts on this topic ?