How do I detect from the command line that a new Fedora release is available?

edit

I want to put code in a shell script to check if there is a new Fedora release available.

On Ubuntu, I can accomplish this with do-release-upgrade -c. Despite quite a bit of searching, I can't figure out what the equivalent would be for Fedora.

Can anyone advise?

UPDATE: Here's what I ended up doing:

def fedora_release_checker():
    try:
        os_release = open('/etc/os-release', 'r')
    except Exception:
        log.exception('Could not open /etc/os-release')
        return 'unknown'

    try:
        version_id_line = next(
            l for l in os_release if l.startswith('VERSION_ID=')).strip()
    except StopIteration:
        log.error('Could not find VERSION_ID= line in /etc/os-release')
        return 'unknown'

    try:
        current_version_number = int(version_id_line[11:])
    except Exception:
        log.error('Could not parse {} in /etc/os-release'.format(
            version_id_line))
        return 'unknown'

    next_version_number = current_version_number + 1

    try:
        subprocess.check_output(
            ('osinfo-query', 'os', 'short-id=fedora{}'.format(
                current_version_number)),
            stderr=subprocess.STDOUT).decode('utf8')
    except Exception:
        log.exception('Could not query current release with osinfo-query')
        return 'unknown'

    try:
        subprocess.check_output(
            ('osinfo-query', 'os', 'short-id=fedora{}'.format(
                next_version_number)),
            stderr=subprocess.STDOUT).decode('utf8')
    except subprocess.CalledProcessError:
        return False
    except Exception:
        log.exception('Error querying next release with osinfo-query')
        return 'unknown'
    else:
        return True