In my root magento folder, in /var/package/, I have what looks like archived versions of magento. Below is an example of what I see. Is it safe to delete these files up to the current version?
 | addthis_sharingtool-2.3.0.xml | 4.34 KB | 0666 |
| Cm_RedisSession-1.8.0.0.xml | 1.17 KB | 0755 |
| Cm_RedisSession-1.9.2.0.xml | 1.17 KB | 0644 |
| Cm_RedisSession-1.9.2.1.xml | 1.17 KB | 0644 |
| Cm_RedisSession-1.9.2.2.xml | 1.17 KB | 0644 |