def METHOD_NAME(changes):
    """
    Release version - move from experimental/ to released/.
    Returns human version - the one suitable for tagging and displaying in changelog
    """
    print("Releasing changes...")
    current_internal_version = get_current_internal_version()
    human_version = increase_human_version(current_internal_version)
    data = frontmatter.loads(changes)
    data["weight"] = current_internal_version + 1
    data["subtitle"] = datetime.datetime.now().strftime("released on %Y-%m-%d")
    data["draft"] = False
    data["date"] = datetime.datetime.now()  # 2018-10-02T09:29:50Z
    data["version"] = human_version
    print("Assigning new version: %s / %s" % (data["weight"], data["version"]))
    released_file_path = os.path.join(RELEASED_DIR, "%s.md" % data["weight"])
    with open(released_file_path, "wb") as released_file:
        frontmatter.dump(data, released_file)
    print("Created: %s" % released_file_path)
    return human_version