This version (b22and more) introduces several changes. The two major ones (beside bug fixes) is that you can now set intervals for mail checking for each list individually and that you can set the list to deny subscription commands or also any command. If you are upgrading from version 0.9b11 follow these instructions instead of just dumping the old version you should do this : 1. Launch Macjordomo 2. For each list you have Open the list window, click on Users and the click on Export..., give the file a meaningful name, repeat for every list. Quit 3. Launch the new version of Macjordomo, open theList window, choose Users.. and then Import.., find the file, click OK. Repeat for every list. 4. Done. Why do you have to do this? Version 0.9b11 had an obscure bug that caused the users to be saved in the application file instead of the list file if you saved users before saving the list just after its creation (does it make any sense to you what I just said?)