The course focuses on the latest release (currently Angular 6 - although we're keeping a keen eye on the new features in Angular 7). If you're aiming to develop for Angular versions 2 to 5, have no fear! This course will still be largely relevant for you as the platforms are highly compatible.
Angular 6 has a smaller footprint, more command-line optimisations, updated Typescript support, and many more under-the-bonnet fixes and enhancements.
Please note, porting AngularJS (1.x) code to Angular 2 or later releases is non-trivial as the platforms have quite fundamental differences, so please get in touch about our AngularJS 1.x course if that's the platform you'll be supporting,