Certain tools are optimized in the new version of Angular, let us see what the tools are:
Angular 5 supports Typescript version 2.4
Angular 5 supports RxJS 5.5 which has new features like Pipeable Operators
A build tool to make the js bundles (files) lighter
Ahead of Time (AOT) is updated to be on by default
Events like ActivationStart and ActivationEnd are introduced in Router
