Perl 5.42 released by @PerlRakuFoundation with new features: more CORE:: subs, new pragma source::encoding, new :writer attribute on field variables, new any and all operators, apostrophe as a global name separator can be disabled, lexical method declaration using my method, lexical method invocation operator ->&, switch and Smart Match operator kept (behind a feature), Unicode 16.0, assigning logical xor ^^= operator. https://metacpan.org/release/BOOK/perl-5.42.0/view/pod/perldelta.pod #perl #OpenSource #software #engineering #tech
![article overview screenshot from https://metacpan.org/release/BOOK/perl-5.42.0/view/pod/perldelta.pod
Meta CPAN
Philippe Bruhat (BooK) / perl-5.42.0 / perldelta
NAME
perldelta - what is new for perl v5.42.0
DESCRIPTION
This document describes differences between the 5.42.0 release and the 5.40.0 release.
Core Enhancements
More CORE:: subs
chdir has been added as a subroutine to the CORE:: namespace.
Previously, code like &CORE::chdir($dir) or my $ref = \&CORE::chdir; $ref->($dir) would throw an error saying &CORE::chdir cannot be called directly. These cases are now fully supported.
New pragma source::encoding
This allows you to declare that the portion of a program for the remainder of the lexical scope of this pragma is encoded either entirely in ASCII (for use source::encoding 'ascii') or if UTF-8 is allowed as well (for use source::encoding 'utf8'). No other encodings are accepted. The second form is entirely equivalent to use utf8, and may be used interchangeably with that.
The purpose of this pragma is to catch cases early where you forgot to specify use utf8.
[...]](/proxy/post_attachment/2040244/9ffa6239aa.png "article overview screenshot from https://metacpan.org/release/BOOK/perl-5.42.0/view/pod/perldelta.pod
Meta CPAN
Philippe Bruhat (BooK) / perl-5.42.0 / perldelta
NAME
perldelta - what is new for perl v5.42.0
DESCRIPTION
This document describes differences between the 5.42.0 release and the 5.40.0 release.
Core Enhancements
More CORE:: subs
chdir has been added as a subroutine to the CORE:: namespace.
Previously, code like &CORE::chdir($dir) or my $ref = \&CORE::chdir; $ref->($dir) would throw an error saying &CORE::chdir cannot be called directly. These cases are now fully supported.
New pragma source::encoding
This allows you to declare that the portion of a program for the remainder of the lexical scope of this pragma is encoded either entirely in ASCII (for use source::encoding 'ascii') or if UTF-8 is allowed as well (for use source::encoding 'utf8'). No other encodings are accepted. The second form is entirely equivalent to use utf8, and may be used interchangeably with that.
The purpose of this pragma is to catch cases early where you forgot to specify use utf8.
[...]")