Nice to see that the developers of Perl are still solving the important problems:
say() is a new built-in, only available when
use feature 'say' is in effect, that is similar to print(), but that implicitly appends a newline to the printed string.
A new prototype character has been added.
_ is equivalent to
$ but defaults to
$_ if the corresponding argument isn’t supplied.
—perldelta for 5.10
This is exactly the kind of stuff that made me give up on Perl. And mro is a pretty horrible new feature too.