upgrading 5.4 -> 6.0 without reinstalling. safe ?

[Pete French]

Thanks for all the comments - it sounds like it's a pretty safe thing to do.
I have one more question though - when I upgrade a machine this wa I
will remove all the ports first, so it is just back to the basic system.
But Perl is now a port - should I remove this, or should I leave it alone,
i.e. is it required for the build process ?

cheers,

-pcf.