I've updated to the new OR version.
Since I wanted to try it first I kept my old installation incl. the old database. This site is still running.
Now, my question is: How do I transfer the old database to the newest database created with OR 2.1.1.?

My old version is, I suppose, OR 1.1 but I'm not entirely sure. I've pretty much every updated version since Jon's releases. So, I guess it's the above-mentioned release.

I also tried this yesterday:
I ran the installation again with a "test"-database using the old 1.1 tables. So I updated the 2.1 version to this old database but eventually I got an error message when it came to creating the tables.

Hope someone can help me.