Android Question targetSdkVersion 26

[Scantech]

Will the app be removed from Google Play if not updated to higher targetSdkVersion by November 2018?

 

[asales]

No.
See this link:
https://android-developers.googleblog.com/2017/12/improving-app-security-and-performance.html
In the second half of 2018, Play will require that new apps and app updates target a recent Android API level.
Existing apps that are not receiving updates are unaffected.