1=encoding utf8 2 3=head1 NAME 4 5perldelta - what is new for perl v5.40.1 6 7=head1 DESCRIPTION 8 9This document describes differences between the 5.40.0 release and the 5.40.1 10release. 11 12If you are upgrading from an earlier release such as 5.39.0, first read 13L<perl5400delta>, which describes differences between 5.39.0 and 5.40.0. 14 15=head1 Incompatible Changes 16 17There are no changes intentionally incompatible with 5.40.0. If any exist, 18they are bugs, and we request that you submit a report. See L</Reporting Bugs> 19below. 20 21=head1 Modules and Pragmata 22 23=head2 Updated Modules and Pragmata 24 25=over 4 26 27=item * 28 29L<File::Spec> has been upgraded from version 3.90 to 3.91. 30 31=item * 32 33L<Module::CoreList> has been upgraded from version 5.20240609 to 5.20250118_40. 34 35=item * 36 37L<warnings> has been upgraded from version 1.69 to 1.70. 38 39=back 40 41=head1 Documentation 42 43=head2 Changes to Existing Documentation 44 45We have attempted to update the documentation to reflect the changes listed in 46this document. If you find any we have missed, open an issue at 47L<https://github.com/Perl/perl5/issues>. 48 49=head1 Configuration and Compilation 50 51=over 4 52 53=item * 54 55Fixed compilation on platforms (e.g. "Gentoo Prefix") with only a C locale. 56[L<GH #22569|https://github.com/Perl/perl5/issues/22569>] 57Bug first reported downstream at 58L<bugs.gentoo.org/939014|https://bugs.gentoo.org/939014>. 59 60=item * 61 62Fixed compilation error on some systems due to a typo in a printf() format. 63[L<GH #22793|https://github.com/Perl/perl5/issues/22793>] 64 65=back 66 67=head1 Testing 68 69Tests were added and changed to reflect the other additions and changes in this 70release. 71 72=head1 Selected Bug Fixes 73 74=over 4 75 76=item * 77 78Starting in Perl 5.39.8, L<POSIX/C<strftime>> would crash or produce odd errors 79(such as C<Out of memory in perl:util:safesysmalloc>) when given a format 80string that wasn't actually a string, but a number, C<undef>, or an object 81(even one with overloaded string conversion). 82 83Now C<strftime> stringifies its first argument, as before. 84[L<GH #22498|https://github.com/Perl/perl5/issues/22498>] 85 86=item * 87 88Builds with C<-msse> and quadmath on 32-bit x86 systems would crash with a 89misaligned access early in the build. 90[L<GH #22577|https://github.com/Perl/perl5/issues/22577>] 91 92=item * 93 94Using C<goto> to tail call, or using the call_sv() and related APIs to call, 95any of trim(), refaddr(), reftype(), ceil(), floor() or stringify() in the 96C<builtin::> package would crash or assert due to a C<TARG> handling bug. 97[L<GH #22542|https://github.com/Perl/perl5/issues/22542>] 98 99=item * 100 101Fixed an issue where C<utf8n_to_uvchr()> failed to correctly identify certain 102invalid UTF-8 sequences as invalid. Specifically, sequences that start with 103continuation bytes or unassigned bytes could cause unexpected behaviour or a 104panic. This fix ensures that such invalid sequences are now properly detected 105and handled. This correction also resolves related issues in modules that 106handle UTF-8 processing, such as L<Encode>. 107 108=item * 109 110Fixed a double free error or possible memory leak when failing to compile 111certain regexps. [L<GH #21661|https://github.com/Perl/perl5/issues/21661>] 112 113=back 114 115=head1 Acknowledgements 116 117Perl 5.40.1 represents approximately 7 months of development since Perl 5.40.0 118and contains approximately 5,600 lines of changes across 54 files from 15 119authors. 120 121Excluding auto-generated files, documentation and release tools, there were 122approximately 1,800 lines of changes to 19 .pm, .t, .c and .h files. 123 124Perl continues to flourish into its fourth decade thanks to a vibrant community 125of users and developers. The following people are known to have contributed 126the improvements that became Perl 5.40.1: 127 128Andrei Horodniceanu, Chris 'BinGOs' Williams, E. Choroba, Graham Knop, James E 129Keenan, Karen Etheridge, Karl Williamson, Lukas Mai, Masahiro Honma, Max 130Maischein, Philippe Bruhat (BooK), Richard Leach, Steve Hay, Thibault 131Duponchelle, Tony Cook. 132 133The list above is almost certainly incomplete as it is automatically generated 134from version control history. In particular, it does not include the names of 135the (very much appreciated) contributors who reported issues to the Perl bug 136tracker. 137 138Many of the changes included in this version originated in the CPAN modules 139included in Perl's core. We're grateful to the entire CPAN community for 140helping Perl to flourish. 141 142For a more complete list of all of Perl's historical contributors, please see 143the F<AUTHORS> file in the Perl source distribution. 144 145=head1 Reporting Bugs 146 147If you find what you think is a bug, you might check the perl bug database at 148L<https://github.com/Perl/perl5/issues>. There may also be information at 149L<https://www.perl.org/>, the Perl Home Page. 150 151If you believe you have an unreported bug, please open an issue at 152L<https://github.com/Perl/perl5/issues>. Be sure to trim your bug down to a 153tiny but sufficient test case. 154 155If the bug you are reporting has security implications which make it 156inappropriate to send to a public issue tracker, then see 157L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION> for details of how to 158report the issue. 159 160=head1 Give Thanks 161 162If you wish to thank the Perl 5 Porters for the work we had done in Perl 5, you 163can do so by running the C<perlthanks> program: 164 165 perlthanks 166 167This will send an email to the Perl 5 Porters list with your show of thanks. 168 169=head1 SEE ALSO 170 171The F<Changes> file for an explanation of how to view exhaustive details on 172what changed. 173 174The F<INSTALL> file for how to build Perl. 175 176The F<README> file for general stuff. 177 178The F<Artistic> and F<Copying> files for copyright information. 179 180=cut 181