Tomcat 5.0.x or 5.5.x in production

[David Boyer]

We've been using Tomcat 5.0.x in production for the past nine months or
so. There appear to be numerous benefits to moving to 5.5.x, not the
least of which being that it's the current focus of development.
 
With 5.5.4 being labeled 'stable', I'm interested in moving our sites
to 5.5.x.
 
Is 5.5.4 being regarded as being at least as stable/reliable as
5.0.28?
 
Thanks!