> that there are always administrative departments responsible for updating and publishing the statutes based on the bills that have been passed

I don't think that's the case in Italy. A bill often takes the takes the form of sequences such as "in the bill n. 1234/05 at the subparagraph 2, the word X is replaced with the word Y." There isn't, to my knowledge, a notion of "document" which the patch is applied to. You can, of course, derive the documents from the successive patches, and laws on new matters contain an entire document as a "first commit". But in software engineering it's the documents/ files you care about, patches and commits only exist as a support for change management.