I was on a plane earlier this week, and not being able to use go get was unfortunate. Any queries like go get some-dependency@latest or @master always reach for the internet, failing immediately. Something akin to go get some-dependency@latest-cached would have been neat, because that dependency was many months out of date, and my cache had multiple newer tagged versions.

I ended up looking directly into my module download cache, finding the latest tagged version there, then using go get some-dependency@v1.2.3. Which worked, but it's also somewhat tedious, and I don't like having to peek at the local cache in this way to be able to use it.

I believe that we've talked about better offline support before, but I could not find a tracking issue for it.

cc @bcmills @matloob