title: How to get version of R8 that is being used by the Android Gradle Plugin?
body: <p>How can I find out which version of R8 is being used by the Android Gradle Plugin for let's say 4.0.1?</p>
  <pre><code>buildscript {
    repositories {
      google()
      mavenCentral()
    }
    dependencies {
      classpath 'com.android.tools.build:gradle:4.0.1'
    }
  }
  </code></pre>