I am currently updating the dependencies of my project which uses the Angular2 npm packages and therefore RxJs as well. I am updating to the 2.0.2 stable release of angular
I did maybe exactly what you're looking for with Angular2 and rxjs@5.0.0-beta.12 which is now distributed as globals and the umd package is probably not supported any more (just as you said):
See live demo: https://plnkr.co/edit/z4gg2XBoQDgYXev0Csuq
Basically, I just updated my SystemJS config:
paths: {
'rxjs*': 'https://unpkg.com/@reactivex/rxjs@5.0.0-beta.12/dist/global/Rx.js'
},
Then I removed rxjs from map list. Now it loads a single Rx.js file.