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