Request for adding SDK version dropdown option for documentation versions

I'm writing a final thesis that uses Meta's  Movement SDK for body tracking and I am frequently sourcing websites like for example:
https://developers.meta.com/horizon/documentation/unity/move-body-tracking

With every new SDK version, the documentation website frequently gets updated. My problem with that is that developers who are using v68 can't look at the older versions of the documentation. Also for sourcing and citing information this is a nightmare because when a page is updated for the new SDK versions, previous instructions are gone from the internet. It can't even be looked at using The Internet Archive's Wayback Machine.

So creating a dropdown that let's you pick a version of the SDK that you are using would be a life saver, for quoting the documentation. 

(Just in case  I would like to note that this problem isn't with a specific version like v68 but an overall problem of information dissappearing forever from Meta's offical documentation website)