PhpBrew\ReleaseList::getLatestVersion PHP Method

    public function getLatestVersion()
    {
        $releases = $this->getReleases();
        $latestMajor = array_shift($releases);
        $latest = array_shift($latestMajor);
        if (!$latest) {
            throw new Exception('Latest major version not found.');
        }
        return $latest['version'];
    }