use utf8;
use strict;
+my $wbr = "\N{ZERO WIDTH SPACE}";
+{
v5.004 => {
release => '1997-05-15',
['Memoize' => 'remember function results, trading space for time', 'memoize "stat"'],
['MIME::Base64' => 'base64 encoded strings as in email attachments'],
['Test::More' => 'modern framework for unit testing', 'is $got, $expected'],
- ['Time::HiRes' => 'high resolution timers', '$μs = [gettimeofday]; sleep .1; $elapsed = tv_interval $μs'],
+ ['Time::HiRes' => 'high resolution timers', '$μs = [gettimeofday]; sleep .1;'.$wbr.' $elapsed = tv_interval $μs'],
],
release => '2002-07-18',
distro => {
modules => [
[autodie => 'replace builtin functions to throw exceptions instead of returning failure', 'eval {open ...} or $@->matches("open") || die'],
# overloading
- ['IO::Compress::Zip' => 'various file compression standards', 'zip IO::Uncompress::Gunzip->new("test.gz") => "recompressed.zip"'],
+ ['IO::Compress::Zip' => 'various file compression standards', 'zip IO::Uncompress::Gunzip->new("test.gz")'.$wbr.' => "recompressed.zip"'],
['Time::Piece' => 'timestamps as objects', 'localtime->year > 1900'],
- ['File::Fetch' => 'generic data retrieval/download', 'File::Fetch->new(uri => "http://localhost/")->fetch(to => \$slurp)'],
+ ['File::Fetch' => 'generic data retrieval/download', 'File::Fetch->new(uri => "http://localhost/")'.$wbr.'->fetch(to => \$slurp)'],
],
release => '2007-12-18',
distro => {
distro => {
ubuntu => '14.04 LTS', # trusty
opensuse => '13.1', # 2013-11 eol 2016-01
+ macos => '10.15', # pre-installed catalina 2019-10
},
unicode => '6.2',
},
[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',
debian => '10', # buster 2019-07
ubuntu => '19.04', # disco 2019-04 eol 2020-01
freebsd => '11', # eol 2021-09
+ macos => '11', # big sur 2020-11
},
distrosum => "stable systems such as Debian 10, Ubuntu 19.04, FreeBSD 11",
},
['<code>m(\p{nv=/.*/})</code>', 'match unicode properties by regular expressions', {experimental => 'uniprop_wildcards'}],
['<code><s>my $state if 0</s></code>', 'workaround for <code><a href="#state">state</a></code> (deprecated since v5.10!) is now prohibited'],
[q"<code>qr'\N'</code>", 'Delimiters must be graphemes; unescaped <code>{</code> illegal; <code>\N</code> in single quotes'],
+ ['<code><s>use Locale::Codes</s></code>', 'removed from core, get actual lists from CPAN', {dropped => v5.30}],
],
unicode => '12.1',
release => '2019-05-22',
distro => {
ubuntu => '20.04', # focal LTS 2020-04 eol 2025-04
+ macos => '11.3', # big sur 2021-04 and monterrey 2021-10, alongside compatibility v5.18
},
},
unicode => '14.0',
release => '2022-05-28',
distro => {
- debian => '12', # bookworm 2023 upcoming
+ debian => '12', # bookworm 2023-06
ubuntu => '23.04', # lunar upcoming
},
},
+
+ v5.38 => {
+ new => [
+ ['<code>use feature "module_true"</code>', 'default in use 5.37 and up, also <code>no feature "bareword_filehandles"</code>'],
+ ['<code>sub ($var ||=</code> default<code>)</code>', 'assign values when false (or undefined on <code>//=</code>) instead of omitted'],
+ ['<code>/(*{ … })/</code>', 'optimistic eval: <code>(?{ … })</code> with regex optimisations enabled'],
+ ['<code>class</code>', "define object classes: packages with <code>field</code> variables and <code>method</code> subroutines", {feature => 'class', experimental => 'class'}],
+ ['<code>${^LAST_<wbr>SUCCESSFUL_<wbr>PATTERN}</code>', 'explicit variable to access the previous match as in <code>s//…/</code>'],
+ ['<code>%{^HOOK}</code>', "perform tasks <code>require__before</code> and <code>require__after</code> when calling <code>require</code>"], # also @INC hook enhancements
+ ['<code>PERL_RAND_<wbr>SEED</code>', 'environment variable to set <code>srand</code> random number seed', {dropped => 0}],
+ ['<code>is_tainted</code>', '<code>builtin</code> function to check variable tainting like <code>Scalar::Util::tainted</code>', {dropped => 0, experimental => 'builtin', eg => 'builtin::is_tainted($ENV{PWD}) and say "running perl -T"'}],
+ ['<code>export_lexically</code>', '<code>builtin</code> function to export named functions into the calling scope', {dropped => 0, experimental => 'builtin', eg => 'method import {builtin::export_lexically {map {$_ => $self->can($_)} @_}}'}],
+ ],
+ unicode => '15.0',
+ release => '2023-07-02',
+ },
}