[krono]

There's already a "compare" selector on the current/old releases page that lets you do just that with two clicks.

[arve0]

Thank you, that is useful, but basically same as "jumping" between branches.

@pronik's reply was spot on, viewing the merge commit, which shows which branches and tags the commit is included in. Example: https://github.com/openshift/okd/commit/e278fba2d8a5aea6b7bd...