Well, we are looking at npm packages, where every package is supposed to follow semantic versioning. The fact that we don't have date as version number means everyone is a good citizen.
Off the top of my head, CloudFlare uses a somewhat date based method of typing for their Workers types package, but it makes sense in context as you define compatibility dates for a Worker when you set it up, which automatically enables/disables potentially breaking features in the API.
https://docs.npmjs.com/about-semantic-versioning