If you think a new Crypt::Rijndael might break your application, please test it with 0.06_09. Barring anyone complaining, it's going to be an official release after the holidays.
When I took over Crypt::Rijndael I didn't ealize how many people were using it, and I don't want to break any applications with an unintended upgrade some of you might perform.
I think I've fixed most of the architecture issues, and am waiting for more results from CPAN Testers. I'm especially interested in Solaris reports for this release.