3.2.2 is DEPRECATED. See #603 (comment) for details.

This release mitigated the breaking changes introduced in 3.2.0 where ES6 features were being used on users of Node 4, causing crashes upon inclusion.

It employed a temporary Babel pass on the entire codebase in lieu of a hard reversion (so this version is, effectively, a backport of the fixes and features ultimately introduced in 4.0.0).