I installed 2.1.9 of Deja Office several years ago to replace my Palm Pilot and purchased COmpanionlink at the time. Never got any messages about new versions, so I am still on that version. Is there anything I need to know before attempting to upgrade at this point - or should I just stay on the older version. I want to preserve my data and am concerned an upgrade to a current version may compromise my database. Companionlink stopped working about a year after I purchased it so my data is not backed up at present. Contemplating syncing with Andriod Calendar to solve that. I am on Android 4.0.3,