I've an Android application with below configurations.
minSdkVersion 17
targetSdkVersion 26
compileSdkVersion 26
buildToolsVersion '26.0.3'
Now as part of Android P upgrade, I'm updating the targetSdkVersion to API 28. I would also like to update the minSdkVersion to API 21.
What will be the impact of this transition from minSdkVersion 17 to minSdkVersion 21? I know my existing users will be impacted but apart from this what will be technical challenges in this?
Any help will be appreciated.