iota.lib.java/RELEASE.md

Release process

This project uses a simplified release process, where you only need to push a tag starting with release-, followed by a version number. For instance, pushing a tag named release-0.9.3 would tell Travis CI to release the version 0.9.3.

TL;DR

git checkout master
git fetch upstream
git rebase upstream/master
git tag release-0.9.X
git push upstream release-0.9.X

Explanation

Once a new tag is pushed to the main repository, a Travis build will be started for it. Once the build script detects that it's a release build, it will start a new Maven release process (mvn release:prepare release:perform) and upload the artifacts to Bintray, which is synchronized with Maven Central.