[sublimino]

This is intentional - it's a feature, not a breaking change, although the docs do identify a greater possibility of regressions until LTS. From https://nodejs.org/en/blog/release/v6.0.0/

> The general rule for deciding which version of Node.js to use is:

> ...

> - Upgrade to Node.js v6 if you have the ability to upgrade versions quickly and want to play with the latest features as they arrive.

> Note that while v6 will eventually transition into LTS, until it does, we will still be actively landing new features (semver-minor). This means that there is an increased chance for regressions to be introduced..