Ionic 2 to Ionic 3 migration

I am converting my ionic 2 PWA to ionic 3 and previously in the service worker file I cached the files

    1. index.html
    1. manifest.json
    1. build/main.js
    1. build/main.css
    1. build/polyfills.js

and during the conversion process one more js added for the lazy loading feature (vendor.js). And also the main.js got splitted into multiple js files based on the modules like - 0.js, 1.js, 2.js etc., Now my doubt is, do I have to cache these new js files (vendor & 0.js, 1.js other files) in my service worker.js
Also Is there any other point I need to consider during the conversion process from Ionic 2 to Ionic 3
Please suggest and Thanks in advance!