['<code>/(?<name>)/</code>', 'named capture buffers into <code>%+</code>'],
['<code>s/keep\K//</code>', 'floating positive lookbehind, efficient alternative for <code>s/(keep)/$1/</code>'],
['<code>/\v/, /\h/</code>', 'vertical and horizontal whitespace escapes'],
- ['<code>my $_</code>', 'lexically scoped version of the default variable', 'experimental::lexical_topic'],
+ ['<code>my $_</code>', 'lexically scoped version of the default variable', v0.5.23.4, 'experimental::lexical_topic'],
],
release => '2007-12-18',
distro => {
new => [
['<code>sub ($var)</code>', 'subroutine signatures', 'experimental::signatures'],
['<code>%hash{…}</code>', 'hash slices return key+value pairs'],
- ['<code>[]->@*</code>', 'postfix dereferencing (also e.g. <code>$scalar->$*</code> for <code>$$scalar</code>)', 'experimental::postderef'],
+ ['<code>[]->@*</code>', 'postfix dereferencing (also e.g. <code>$scalar->$*</code> for <code>$$scalar</code>)', v5.23.1, 'experimental::postderef'],
[q"<code>use warnings 'once'; $a</code>", 'variables $a and $b are exempt from <em>used once</em> warnings'],
],
unicode => '6.3',