This is particularly useful with C<map>. See L<perlop> for more examples.
+=head2 package block syntax
+
+A package declaration can now contain a code block, in which case the
+declaration is in scope only inside that block. So C<package Foo { ... }>
+is precisely equivalent to C<{ package Foo; ... }>. It also works with
+a version number in the declaration, as in C<package Foo 1.2 { ... }>.
+See L<perlfunc>.
+
=head1 New Platforms
XXX List any platforms that this version of perl compiles on, that previous