I have an app version 1.0.1 with minimum SDK 24 published on the Play Store. What happens when I release a new app version 1.0.2 with minimum SDK 26?

I know that current users with Android 7.0 can still use app version 1.0.1 but can’t upgrade to 1.0.2

My question is: Can new users using Android 7.0 still see the old version 1.0.1 on the Play Store? If so, how do I prevent them from downloading my app?