[q"<code>use re 'strict'</code>", 'apply stricter syntax rules to regular expression patterns', {experimental => 're_strict'}],
['<code>0x.beep+0</code>', q"hexadecimal floating point notation with binary power; <code>printf '%a'</code> to display"],
['<code><s>??</s></code>', 'single match shorthand (deprecated since v5.14) requires the operator <code><em>m</em>?PATTERN?</code>'],
+ ['<code><s>use CGI</s></code>' => 'deprecated interface for serving http requests removed from core'
+ .', see <a href="https://metacpan.org/pod/CGI::Alternatives" target=_blank>CGI::Alternatives</a>', {name => 'cgi'}],
],
unicode => '7.0',
release => '2015-06-01',
['<code>m(\p{nv=/.*/})</code>', 'match unicode properties by regular expressions', {experimental => 'uniprop_wildcards'}],
['<code><s>my $state if 0</s></code>', 'workaround for <code><a href="#state">state</a></code> (deprecated since v5.10!) is now prohibited'],
[q"<code>qr'\N'</code>", 'Delimiters must be graphemes; unescaped <code>{</code> illegal; <code>\N</code> in single quotes'],
+ ['<code><s>use Locale::Codes</s></code>', 'removed from core, get actual lists from CPAN', {dropped => v5.30}],
],
unicode => '12.1',
release => '2019-05-22',