To publish a release:

• Tag the commit on master: git tag -a x.x.x -m x.x.x && git push --tags
• Execute the release process: ./gradlew clean test uploadArchives -PisRelease=true
• Head to https://oss.sonatype.org/#stagingRepositories to close and release the deployment.
• Don't forget to publish the tag on Github with release notes :)