I recently added a mod for SMF 2.0.17 and have just updated it to also work with earlier versions (ie, SMF 2.0.10 through SMF 2.0.16).
However, when I edit the mod the only options I can choose for 'Compatible With' are SMF 2.0.17 and SMF 2.1 RC3 - how can I update the 'Compatible With' information to list all the versions the mod is compatible with?