Jasper 3.7.0 vs Tomcat releases

Hi!

We have many web-applications using Jasper Report 0.3, and we have many installations of Tomcat (4, 5, 6...)

I'd like to know:

If we upgrade to JasperReports 3.7.0, there is a MINIMUM supported release of Tomcat that we have to install?

Thanks in advance!

Carlo