Do not user older versions on productions sites.
For your own safety, use always the most recent version we released.
To update SobiPro to the most recent version you need to install all main versions sequentially. Means, if you upgrade from 1.0.x, first install 1.0.8, then 1.1.13, then 1.2.4 then 1.3.7 and then 1.4.11 and so on. You will find these older versions here in the download archive.
Please refer also to the documentation!
Please note: NO SUPPORT is given for older versions of SobiPro and the applications offered here!