pointloma1900

I bought Avernum 4 v1.0 in December (running on Mac. OS X 10.4.5) last year. Today I received the newsletter. Avernum 4 is now v1.0.3. There is no upgrade available from version 1.0. Seems I have to download the whole game again, is that right? What puzzles me even more is that I always have to download the trialversion first and that there is no way to find out if that is the newest version. On the homepage it is always called Avernum 4. Do I need a new registration code after downloading? I enjoy playing Avernum 4 very much. Thank you for your help. Greetings to all, pointloma 1900