<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def sorted_releases(self):
 """ Releases sorted by version. """

        releases = [(parse_version(release.version), release)
                    for release in self.releases]
        releases.sort(reverse=True)
        return [release[1] for release in releases]