Is Service Worker intended to replace or coexist with Appcache?

Question

Is ServiceWorker intended to replace Appcache, or is the intention that the two will coexist? Phrased another way, is appcache about to become deprecated?

Answer 1

As a cache tool, it will coexist with appcache. Appcache works on virtually every browser.

But service workers are a solid foundation that will permit new usage like push (even when the browser is in the background) , geofencing or background synchronization.