[Rarebox]

I thought google did this versioning thing for libraries before, but it was stopped for reasonable reasons (g3 components).

Basically if you could pin lib versions everyone would be stuck on old versions for a long time, causing difficult debugging work for each user of the library. You'd then also have all sorts of diamond problems: what if you want newest absl but older bigtable client?

It's a difficult problem no matter which way you go.