| Version | Release | Download |
| 2.1.0 | 2018-04-09 | propro-2.1.0.tgz |
| 2.0.1 | 2016-05-25 | propro-2.0.1.tgz |
| 2.0.0 | 2016-01-19 | propro-2.0.0.tgz |
| 2.0.0RC1 | 2015-12-07 | propro-2.0.0RC1.tgz |
| 1.0.2 | 2016-01-19 | propro-1.0.2.tgz |
| 1.0.2RC1 | 2015-12-07 | propro-1.0.2RC1.tgz |
| 1.0.0 | 2013-08-12 | propro-1.0.0.tgz |
| 0.1.0 | 2013-02-16 | propro-0.1.0.tgz |