What the difference in firebase-core and firebase-analytics libraray?

Question

Google recently released new verison of Firebase. So I was trying to migrateto Firebase analytics.

So what is the difference between these libraries

Answer 1

Apparently since June 12, 2018 declaring com.google.firebase:firebase-core is required to use any of the Firebase features (firebase.google.com/support/release-notes/android#update_may_23_2018). According to firebase.google.com/docs/android/setup#available-libraries , firebase-analytics is not even a public module, and is probably not intended to be used directly.