Dependabot (owned by GitHub) uses this to great effect on their automated PRs.
Example: https://github.com/timdorr/tesla-trip/pull/107
The show the recent release notes, changelogs, and recent commit history behind what you're about to upgrade. That's immensely helpful when deciding what you want to update in your dependency list, especially if there are breaking changes. Dependency management is much less of a pain this way.