how does Dagster express asset/job/graph/op versions?

hi @Chris Hansen can you say a bit more about what you mean by versions? For ops/job outputs, there's this: https://docs.dagster.io/guides/dagster/memoization#versioning-and-memoization-

DAG versioning. if i look back on a past run, how do i know what version of code that corresponded to?

got it -- snapshot id shows up in the UI and if that changes, it's a pretty good indicator that "something changed about this job" (caveats discussed in the link). I could also imagine setting up a tag-based solution, where job runs are given a "git commit hash" tag of some sort (populated via an environment variable or something like that) for something that you could actually link back to your source code.