Scenario: Your package is at version 1.1.0. You decide to drop support for Node.js 0.12. You later do other changes and then publish a minor release. You've now accidentally done a breaking change in a minor release. This happens all the time. And will happen a lot more now that maintainers are starting to drop support for Node.js 0.10 and 0.12.

We could check if the engine field is higher than the latest version, and if not a major release, throw an error.

Thoughts?

Idea from: npm/npm#13549 // @bajtos