EML 2.0.0 is a ground-up rewrite of EML 1.x package. The primary difference is that EML 2.0.0 is built on S3 (list) objects instead of S4 object system. This makes the package interface easier to use and extend. Under the hood, this approach relies on the emld package, which uses a JSON-LD representation of EML which provides a natural translation into the list-based format. While most high level functions for creating EML have been preserved, the change to S3 means that this package will not be backwards-compatible with many scripts which relied on the S4 system. Added a NEWS.md file to track changes to the package.