With this new release, it has also improved the React support and have an integration with Angular CLI. React support has been improved and it provides code completion and resolving component properties which are defined using propType. Non-DOM attributes are not marked as unsolved now and component lifecycle methods are also not marked as unused.
Angular CLI has also got support from WebStorm 2016.2 and with this Angular CLI Webstrom, new Angular 2 projects can be created. It also contains a collection of Angular 2 Live templates that provide frequently used code snippets which are going to be used in the IDE.
In general, The IDE has been improved to add support for fonts with ligatures such as Fire Code, Monoid or Haskig. VCS patches have also got some new improvements in them, these changes can be seen while working with IDE. The patches can be copied to the clipboard and then after going to WebStorm, it will immediately ask the user whether he wants to apply it. Alternatively, patches can be simply dragged into the IDE.
More Information: Webstorm Latest version