> All we need is GitHub to support a `Depends on: #123` annotation which would hide commits already in #123 and not let you merge until #123 is merged.
You can get an approximation by having the PR target the branch used by #123.
You can get an approximation by having the PR target the branch used by #123.
There's also no native UI support for it in GitHub -- I'd expect to have a navigation element for stacked PRs like in Gerrit.