Angular Elements
Ivy renderer
Bazel and Closure Compiler
Component Dev Kit (CDK)
Schematics and ng update
 

The Angular 2 Notes for Professionals book is compiled from Stack Overflow Documentation 

A simple library that support two way binding with angular syntax  

The Window component for Angular was added with the R1 2018 release!

Angular is used more heavily in India while React is heavy in Australia and Russia. 

Angular directive (for version >= 2.x ) that makes the DOM element draggable.