1=encoding utf8 2 3=head1 NAME 4 5perl5282delta - what is new for perl v5.28.2 6 7=head1 DESCRIPTION 8 9This document describes differences between the 5.28.1 release and the 5.28.2 10release. 11 12If you are upgrading from an earlier release such as 5.28.0, first read 13L<perl5281delta>, which describes differences between 5.28.0 and 5.28.1. 14 15=head1 Incompatible Changes 16 17=head2 Any set of digits in the Common script are legal in a script run of 18another script 19 20There are several sets of digits in the Common script. C<[0-9]> is the most 21familiar. But there are also C<[\x{FF10}-\x{FF19}]> (FULLWIDTH DIGIT ZERO - 22FULLWIDTH DIGIT NINE), and several sets for use in mathematical notation, such 23as the MATHEMATICAL DOUBLE-STRUCK DIGITs. Any of these sets should be able to 24appear in script runs of, say, Greek. But the previous design overlooked all 25but the ASCII digits C<[0-9]>, so the design was flawed. This has been fixed, 26so is both a bug fix and an incompatibility. 27 28All digits in a run still have to come from the same set of ten digits. 29 30L<[perl #133547]|https://rt.perl.org/Ticket/Display.html?id=133547> 31 32=head1 Modules and Pragmata 33 34=head2 Updated Modules and Pragmata 35 36=over 4 37 38=item * 39 40L<Module::CoreList> has been upgraded from version 5.20181129_28 to 5.20190419. 41 42=item * 43 44L<PerlIO::scalar> has been upgraded from version 0.29 to 0.30. 45 46=item * 47 48L<Storable> has been upgraded from version 3.08 to 3.08_01. 49 50=back 51 52=head1 Platform Support 53 54=head2 Platform-Specific Notes 55 56=over 4 57 58=item Windows 59 60The Windows Server 2003 SP1 Platform SDK build, with its early x64 compiler and 61tools, was accidentally broken in Perl 5.27.9. This has now been fixed. 62 63=item Mac OS X 64 65Perl's build and testing process on Mac OS X for C<-Duseshrplib> builds is now 66compatible with Mac OS X System Integrity Protection (SIP). 67 68SIP prevents binaries in F</bin> (and a few other places) being passed the 69C<DYLD_LIBRARY_PATH> environment variable. For our purposes this prevents 70C<DYLD_LIBRARY_PATH> from being passed to the shell, which prevents that 71variable being passed to the testing or build process, so running C<perl> 72couldn't find F<libperl.dylib>. 73 74To work around that, the initial build of the F<perl> executable expects to 75find F<libperl.dylib> in the build directory, and the library path is then 76adjusted during installation to point to the installed library. 77 78L<[perl #126706]|https://rt.perl.org/Ticket/Display.html?id=126706> 79 80=back 81 82=head1 Selected Bug Fixes 83 84=over 4 85 86=item * 87 88If an in-place edit is still in progress during global destruction and the 89process exit code (as stored in C<$?>) is zero, perl will now treat the 90in-place edit as successful, replacing the input file with any output produced. 91 92This allows code like: 93 94 perl -i -ne 'print "Foo"; last' 95 96to replace the input file, while code like: 97 98 perl -i -ne 'print "Foo"; die' 99 100will not. Partly resolves [perl #133659]. 101 102L<[perl #133659]|https://rt.perl.org/Ticket/Display.html?id=133659> 103 104=item * 105 106A regression in Perl 5.28 caused the following code to fail 107 108 close(STDIN); open(CHILD, "|wc -l")' 109 110because the child's stdin would be closed on exec. This has now been fixed. 111 112=item * 113 114C<pack "u", "invalid uuencoding"> now properly NUL terminates the zero-length 115SV produced. 116 117L<[perl #132655]|https://rt.perl.org/Ticket/Display.html?id=132655> 118 119=item * 120 121Failing to compile a format now aborts compilation. Like other errors in 122sub-parses this could leave the parser in a strange state, possibly crashing 123perl if compilation continued. 124 125L<[perl #132158]|https://rt.perl.org/Ticket/Display.html?id=132158> 126 127=item * 128 129See L</Any set of digits in the Common script are legal in a script run of 130another script>. 131 132=back 133 134=head1 Acknowledgements 135 136Perl 5.28.2 represents approximately 4 months of development since Perl 5.28.1 137and contains approximately 2,500 lines of changes across 75 files from 13 138authors. 139 140Excluding auto-generated files, documentation and release tools, there were 141approximately 1,200 lines of changes to 29 .pm, .t, .c and .h files. 142 143Perl continues to flourish into its fourth decade thanks to a vibrant community 144of users and developers. The following people are known to have contributed 145the improvements that became Perl 5.28.2: 146 147Aaron Crane, Abigail, Andy Dougherty, David Mitchell, Karen Etheridge, Karl 148Williamson, Leon Timmermans, Nicolas R., Sawyer X, Steve Hay, Tina Müller, 149Tony Cook, Zak B. Elep. 150 151The list above is almost certainly incomplete as it is automatically generated 152from version control history. In particular, it does not include the names of 153the (very much appreciated) contributors who reported issues to the Perl bug 154tracker. 155 156Many of the changes included in this version originated in the CPAN modules 157included in Perl's core. We're grateful to the entire CPAN community for 158helping Perl to flourish. 159 160For a more complete list of all of Perl's historical contributors, please see 161the F<AUTHORS> file in the Perl source distribution. 162 163=head1 Reporting Bugs 164 165If you find what you think is a bug, you might check the perl bug database 166at L<https://rt.perl.org/> . There may also be information at 167L<http://www.perl.org/> , the Perl Home Page. 168 169If you believe you have an unreported bug, please run the L<perlbug> program 170included with your release. Be sure to trim your bug down to a tiny but 171sufficient test case. Your bug report, along with the output of C<perl -V>, 172will be sent off to perlbug@perl.org to be analysed by the Perl porting team. 173 174If the bug you are reporting has security implications which make it 175inappropriate to send to a publicly archived mailing list, then see 176L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION> 177for details of how to report the issue. 178 179=head1 Give Thanks 180 181If you wish to thank the Perl 5 Porters for the work we had done in Perl 5, 182you can do so by running the C<perlthanks> program: 183 184 perlthanks 185 186This will send an email to the Perl 5 Porters list with your show of thanks. 187 188=head1 SEE ALSO 189 190The F<Changes> file for an explanation of how to view exhaustive details on 191what changed. 192 193The F<INSTALL> file for how to build Perl. 194 195The F<README> file for general stuff. 196 197The F<Artistic> and F<Copying> files for copyright information. 198 199=cut 200