Node.js wants to make it easier for you to keep things secret and keep them safe. This is the first release line to include OpenSSL 1.x. Recent work done by the OpenSSL team and the Core Infrastructure Initiative has made it possible for Node to really take advantage of everything OpenSSL has to offer. This includes the ChaCha20 cipher and Polu1305 authenticator.
By moving to OpenSSL 1.1.0, Node.js has made it easier to upgrade to future OpenSSL versions. Node developers will be able to be secure while using the gold-standard of encrypted communications on the web.