Expect a blog post shortly, but from v8 we get these language changes:

- await/async behind flag (already covered in thread)

- Exponentiation operator:

  > console.log(60**2*24);
  86400

- Object.{values,entries}:

  > o = { a: 1, b: 2}
  > Object.values(o);
  [ 1, 2 ]

- Object.getOwnPropertyDescriptor(s):

  > o = { a: 1 }
  > Object.getOwnPropertyDescriptors(o);
  { a: { value: 1, writable: true, enumerable: true, configurable: true } }

Additionally, there's a lot of pretty impressive optimization work done by the v8 team. You can read more about that on their blog: http://v8project.blogspot.com

Finally, one of my favorite things about Node.js 7.0 is the WhatWG http parser: https://github.com/nodejs/node/pull/7448.

edit: elaborated on exponentiation operator

From what I read in slack: Do not use async/await yet (with --harmony-async-await flag) because it has memory leaks (V8 5.5 will fix it when it gets added)

http://node.green tackles this pretty well.

graceful-fs v3.0 is dead. This can bite you if you haven't updated gulp, less, npm, bower or similar in a while