Doing changelogs for mobile the way I do for browser is actually not an easy thing to do.
Beta on Browser receives daily updates, the app only updates with a new version. So for app even if things get added to that version daily, the player will never see any of it until the entire version is released. And because of this a lot of the information may actually be confusing more than helpful.
I will keep it in the consideration list, but at this time this is not something we can do in a practical way.