Can’t find `combineLatest` in RxJS 5.0

I think #1722 is the relevant GitHub issue here.

I’m on a project using typescript@2.0.10, RxJS@5.0.3, and webpack@2.1.0-beta.25. The following works for me:

import { Observable } from 'rxjs/Observable';
import 'rxjs/add/observable/combineLatest';

Observable.combineLatest(
  source1,
  source2
).subscribe(sink);