Siwka·قبل 7 سنوات·discussMaybe things have changed now, but as far as I can remember Google Play does let you deploy older APKs. But it's just from the developer side, it's not like users can choose which APK to download.
Siwka·قبل 7 سنوات·discussLast time I checked you didn't get DOM manipulation, so you'd still need to use JS for that.