- new upstream version 6.6.0
* crypto: Added crypto.timingSafeEqual()
* events: Made the "max event listeners" memory leak
warning more accessible
* promises: Unhandled rejections now emit a process warning
after the first tick
* repl: Added auto alignment for .editor mode
* util: Some functionality has been added to util.inspect()
+ Returning this from a custom inspect function now works
+ Added support for Symbol-based custom inspection methods