5.4.0
refactor: replace prototype to class syntax (#4151)
Destructuring assignment of functions in path built-in module
fix(mtime): Use UnixTime at all of the modified fields (#3739)
style: es6 string extensions & destructure (#4357)
Auto replace Destructuring assignment.
Use ESLint and JSCS instead of JSHint. Fix tests failed on Node.js 4
feat: bring up config.updated_option (#4278)