Omni
2008-02-06, 03:38 PM
There's 2 possibilities here:
1) You have the 'archive previous version' box checked in the panel that appears when you update OmniFocus.
2) You're triggering the update install from a non-admin account, then authenticating to an admin account when the system does the install. We've got a bug in the updater that will always archive the previous version under those conditions.
(The numbers after OmniFocus are the build number, by the way.)