just upgraded from 1.9rc2 to 1.9rc3, overided all the files and run tiki-install.php but choose "leave the db as it is" because I not found a script which upgrades DB changes from rc2 to rc3.
Everything works fine and all the existing data is there.
But I am interesting if there are any DB changes from rc2 to rc3???
Hopefully somebody knows this...
bis thanks from Hamburg/Germany.