At a platform level, Android P will warn users when they install an app targeting a platform earlier than Android 4.2 (API 17). (androidauthority.com)
It also of course controls a hugely powerful info - targeting platform which means it will more easily be able to figure out — maybe even A / B test! (techcrunch.com)
In the future, this will allow us to expand out the list of target platforms for our games.» (gamesauce.biz)