Google Play will be required to target Android Oreo (API level 26) or higher

Hello Google Play Developer,
This is a reminder that starting November 1, 2018, updates to apps and games on Google Play will be required to target Android Oreo (API level 26) or higher.
After this date, the Play Console will prevent you from submitting new APKs with a targetSdkVersion less than 26.
Configuring your app to target a recent API level ensures that users benefit from significant security and performance improvements,
while still allowing your app to run on older Android versions (down to the minSdkVersion).

Please ensure that your apps are configured to target at least Android 8.0 (API level 26) by November 1, 2018.

just an FYI.. you need to use API 27. That will show API 26 in Google..
Don't ask me why... lol. kinda odd that they show 1 version behind..

Also Minimum, needs to be 4.0 at least. Older ones are not supported pretty soon either.