Not sure if this is the right place to ask but I noticed something odd when browsing the 5.8.0 documentation for UNIVERSAL.
It states at the end of the document "These subroutines should not be imported via use UNIVERSAL qw(...). If you want simple local access to them you can do
*isa = \&UNIVERSAL::isa;" (which is how I do it anyway) but it states in the pod usage
as an example. This to me says bug or am I missing something obvious...