Google Play Billing Library Version

[Dan Friedman]

Greetings!   I have an app in the Google Play Store, and I recently got a message from Google Play that says my app is not using the correct Billing Library and I need to update my app to include Billing Library version 6 or newer.   I built the app with LC 10 (dp-6).   Is there a version of LC that is compatible with requirement?  Or, how do I tell which versions of LC include which component versions?

-Dan