Where on the internet do I find the current Rust version #? When I type version in console, I see changeset 43712 and protocol 2203.186.1. I can tell I have the latest version now, after checking for updates. Oxide gives a version # on its update feed, FacePunch just gives a build #.

But let's say, I didn't wanna shut the server down to check: where could I find the Rust version on the internet?

You can compare the information provided with the version command against what is provided by Steam. https://steamdb.info/app/258550/depots/