As announced previously, the next major release of Redmine (2.0) will run with Rails 3.2. Today, the development branch was upgraded to Rails 3.2.3 (the latest Rails release). Although it passes the full test suite with ruby 1.8 and 1.9 already, there may still be a few issues. So if you're using trunk for production, you may want to wait for the 2.0 final release before upgrading.

