I just upgraded my blog from 2.13 to 2.2.
Unfortunately, all my posts in Greek language
are not currently readable, some strange characters are shown. :(
This also happened to all category names and comments!
In addition i can't add anything in Greek, strange characters appear to all new categories or post content i try to add.
So, it seems that all Greek letters in dbase changed to strange characters after the dbase upgrade.
I use UTF-8 in both current and previous version. my db is MySQL v5.
I tried to see my posts via the phpmyadmin tool, but the strange characters appeared there too.