        echo "Using ${dev_version} as new development version."
        echo
        
        # Make sure dev is fully up to date.
        echo "Pulling all from remote."
        git pull --all
        
        # Create release path. 
        prepare_dev_branch release "${release_version}"
        merge_dev_into_master
        create_git_tag "${git_tag}"
        
        # Create dev path.
        prepare_dev_branch development "${dev_version}"
        