What is a good way to handle multiple versioned TOS documents?

App has multiple Terms Of Service-type agreements. Each agreement needs to be versioned, and have dates associated for when the agreement is valid. I'm looking at the vari开发者_JAVA技巧ous ActiveRecord versioning systems but I'm wondering if anyone has suggestions for this specific use case.

You might consider gitmodel. Since git excels at versioning documents, it may be a good fit here.

I haven't personally used it but it definitely looks interesting!