1. Change the version in top level to a non-SNAPSHOT verson.
  2. Update the for the impending release.
  3. Update the with the new version.
  4. git commit -am "Prepare for release X.Y.Z." (where X.Y.Z is the new version)
  5. ./gradlew clean uploadArchives.
  6. Visit Sonatype Nexus and promote the artifact.
  7. git tag -a X.Y.X -m "Version X.Y.Z" (where X.Y.Z is the new version)
  8. Update the top level build.gradle to the next SNAPSHOT version.
  9. git commit -am "Prepare next development version."
  10. git push && git push --tags
  11. Update the sample module to point to the newly released version. (May take 2 hours)

If step 5 or 6 fails, drop the Sonatype repo, fix the problem, commit, and start again at step 5.