They were covered in the 5th edition, but there have been changes since 5.10, so the book has been updated in those sections as well. >> Smart matching and giv

They were covered in the 5th edition, but there have been changes since 5.10, so the book has been updated in those sections as well. >> Smart matching and given-when has mutated a bit since their introduction in Perl 5.10, so we update Chapter 15 to cover the new rules.