1=encoding utf8 2 3=head1 NAME 4 5perl5351delta - what is new for perl v5.35.1 6 7=head1 DESCRIPTION 8 9This document describes differences between the 5.35.0 release and the 5.35.1 10release. 11 12If you are upgrading from an earlier release such as 5.34.0, first read 13L<perl5350delta>, which describes differences between 5.34.0 and 5.35.0. 14 15=head1 Modules and Pragmata 16 17=head2 Updated Modules and Pragmata 18 19=over 4 20 21=item * 22 23L<B::Deparse> has been upgraded from version 1.56 to 1.57. 24 25=item * 26 27L<Data::Dumper> has been upgraded from version 2.179 to 2.181. 28 29=item * 30 31L<feature> has been upgraded from version 1.65 to 1.66. 32 33=item * 34 35L<File::Copy> has been upgraded from version 2.35 to 2.36. 36 37Inode numbers are now compared as strings, so that large inode numbers 38are correctly distinguished. (GH #18788) 39 40=item * 41 42L<File::Glob> has been upgraded from version 1.33 to 1.35. 43 44=item * 45 46L<File::Spec> has been upgraded from version 3.80 to 3.81. 47 48=item * 49 50L<File::stat> has been upgraded from version 1.09 to 1.10. 51 52=item * 53 54L<IO> has been upgraded from version 1.46 to 1.47. 55 56Implement sync() for win32. 57 58=item * 59 60L<Module::CoreList> has been upgraded from version 5.20210521 to 5.20210620. 61 62=item * 63 64L<Opcode> has been upgraded from version 1.50 to 1.51. 65 66=item * 67 68L<open> has been upgraded from version 1.12 to 1.13. 69 70=item * 71 72L<PathTools|Cwd> has been upgraded from version 3.80 to 3.81. 73 74Inodes numbers are now compared as strings, so that large inode numbers 75are correctly distinguished. (GH #18788) 76 77=item * 78 79L<perlfaq> has been upgraded from version 5.20210411 to 5.20210520. 80 81=item * 82 83L<POSIX> has been upgraded from version 1.97 to 1.98. 84 85=item * 86 87L<Scalar::Util> has been upgraded from version 1.55 to 1.56. 88 89=item * 90 91L<Socket> has been upgraded from version 2.031 to 2.032. 92 93=item * 94 95L<Test::Simple> has been upgraded from version 1.302183 to 1.302185. 96 97=item * 98 99L<Unicode::Collate> has been upgraded from version 1.29 to 1.30. 100 101One warning in F<mkheader> averted (rt.cpan.org #133952). 102 103=item * 104 105L<Unicode::UCD> has been upgraded from version 0.75 to 0.76. 106 107=item * 108 109L<version> has been upgraded from version 0.9928 to 0.9929. 110 111=item * 112 113L<XS::APItest> has been upgraded from version 1.16 to 1.17. 114 115=back 116 117=head2 Changes to Existing Diagnostics 118 119=over 4 120 121=item * 122 123L<Can't modify %s in %s|perldiag/"Can't modify %s in %s"> 124(for scalar assignment to C<undef>) 125 126Attempting to perform a scalar assignment to C<undef>, for example via 127C<undef = $foo;>, previously triggered a fatal runtime error with the 128message "L<Modification of a read-only value attempted|perldiag/"Modification of a read-only value attempted">." 129It is more helpful to detect such attempted assignments prior to 130runtime, so they are now compile time errors, resulting in the message 131"Can't modify undef operator in scalar assignment". 132 133=back 134 135=head1 Internal Changes 136 137=over 4 138 139=item * 140 141Since the removal of PERL_OBJECT in Perl 5.8, PERL_IMPLICIT_CONTEXT and 142MULTIPLICITY have been synonymous and they were being used interchangeably. 143To simplify the code, all instances of PERL_IMPLICIT_CONTEXT have been 144replaced with MULTIPLICITY. 145 146PERL_IMPLICIT_CONTEXT will remain defined for compatibility with XS modules. 147 148=back 149 150=head1 Selected Bug Fixes 151 152=over 4 153 154=item * 155 156utime() now correctly sets errno/C<$!> when called on a closed handle. 157 158=item * 159 160B::Deparse now correctly handles try/catch blocks with more complex scopes. 161[L<GH #18874|https://github.com/Perl/perl5/issues/18874>] 162 163=back 164 165=head1 Obituary 166 167Raun "Spider" Boardman (SPIDB on CPAN), author of at least 66 commits to the 168Perl 5 core distribution between 1996 and 2002, passed away May 24 2021 from 169complications of COVID. He will be missed. 170 171=head1 Acknowledgements 172 173Perl 5.35.1 represents approximately 4 weeks of development since Perl 1745.35.0 and contains approximately 57,000 lines of changes across 410 files 175from 28 authors. 176 177Excluding auto-generated files, documentation and release tools, there were 178approximately 53,000 lines of changes to 220 .pm, .t, .c and .h files. 179 180Perl continues to flourish into its fourth decade thanks to a vibrant 181community of users and developers. The following people are known to have 182contributed the improvements that became Perl 5.35.1: 183 184Alyssa Ross, Chris 'BinGOs' Williams, Dan Book, Dan Jacobson, Dave Cross, 185Dave Lambley, E. Choroba, Felipe Gasper, H.Merijn Brand, Hugo van der 186Sanden, James E Keenan, Karen Etheridge, Karl Williamson, Leon Timmermans, 187Matthew Horsfall, Max Maischein, Michael G Schwern, Nicholas Clark, Paul 188Evans, Ricardo Signes, Richard Leach, Scott Baker, Thibault Duponchelle, 189Todd Rinaldo, Tomasz Konojacki, Tomoyuki Sadahiro, Tony Cook, Михаил 190Козачков. 191 192The list above is almost certainly incomplete as it is automatically 193generated from version control history. In particular, it does not include 194the names of the (very much appreciated) contributors who reported issues to 195the Perl bug tracker. 196 197Many of the changes included in this version originated in the CPAN modules 198included in Perl's core. We're grateful to the entire CPAN community for 199helping Perl to flourish. 200 201For a more complete list of all of Perl's historical contributors, please 202see the F<AUTHORS> file in the Perl source distribution. 203 204=head1 Reporting Bugs 205 206If you find what you think is a bug, you might check the perl bug database 207at L<https://github.com/Perl/perl5/issues>. There may also be information at 208L<http://www.perl.org/>, the Perl Home Page. 209 210If you believe you have an unreported bug, please open an issue at 211L<https://github.com/Perl/perl5/issues>. Be sure to trim your bug down to a 212tiny but sufficient test case. 213 214If the bug you are reporting has security implications which make it 215inappropriate to send to a public issue tracker, then see 216L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION> 217for details of how to report the issue. 218 219=head1 Give Thanks 220 221If you wish to thank the Perl 5 Porters for the work we had done in Perl 5, 222you can do so by running the C<perlthanks> program: 223 224 perlthanks 225 226This will send an email to the Perl 5 Porters list with your show of thanks. 227 228=head1 SEE ALSO 229 230The F<Changes> file for an explanation of how to view exhaustive details on 231what changed. 232 233The F<INSTALL> file for how to build Perl. 234 235The F<README> file for general stuff. 236 237The F<Artistic> and F<Copying> files for copyright information. 238 239=cut 240