1PERL5301DELTA(1)       Perl Programmers Reference Guide       PERL5301DELTA(1)
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NAME

6       perl5301delta - what is new for perl v5.30.1
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DESCRIPTION

9       This document describes differences between the 5.30.0 release and the
10       5.30.1 release.
11
12       If you are upgrading from an earlier release such as 5.28.0, first read
13       perl5300delta, which describes differences between 5.28.0 and 5.30.0.
14

Incompatible Changes

16       There are no changes intentionally incompatible with 5.30.1.  If any
17       exist, they are bugs, and we request that you submit a report.  See
18       "Reporting Bugs" below.
19

Modules and Pragmata

21   Updated Modules and Pragmata
22       •   Module::CoreList has been upgraded from version 5.20190522 to
23           5.20191110.
24

Documentation

26   Changes to Existing Documentation
27       We have attempted to update the documentation to reflect the changes
28       listed in this document.  If you find any we have missed, send email to
29       perlbug@perl.org <mailto:perlbug@perl.org>.
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31       Additionally, documentation has been updated to reference GitHub as the
32       new canonical repository and to describe the new GitHub pull request
33       workflow.
34

Configuration and Compilation

36       •   The "ECHO" macro is now defined.  This is used in a "dtrace" rule
37           that was originally changed for FreeBSD, and the FreeBSD make
38           apparently predefines it.  The Solaris make does not predefine
39           "ECHO" which broke this rule on Solaris.  [perl #17057]
40           <https://github.com/perl/perl5/issues/17057>
41

Testing

43       Tests were added and changed to reflect the other additions and changes
44       in this release.
45

Platform Support

47   Platform-Specific Notes
48       Win32
49           The locale tests could crash on Win32 due to a Windows bug, and
50           separately due to the CRT throwing an exception if the locale name
51           wasn't validly encoded in the current code page.
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53           For the second we now decode the locale name ourselves, and always
54           decode it as UTF-8.
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56           [perl #16922] <https://github.com/perl/perl5/issues/16922>
57

Selected Bug Fixes

59       •   Setting $) now properly sets supplementary group ids, if you have
60           the necessary privileges.  [perl #17031]
61           <https://github.com/perl/perl5/issues/17031>
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63       •   "readline @foo" now evaluates @foo in scalar context.  Previously,
64           it would be evaluated in list context, and since readline() pops
65           only one argument from the stack, the stack could underflow, or be
66           left with unexpected values on it.  [perl #16929]
67           <https://github.com/perl/perl5/issues/16929>
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69sv_gets() now recovers better if the target SV is modified by a
70           signal handler.  [perl #16960]
71           <https://github.com/perl/perl5/issues/16960>
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73       •   Matching a non-"SVf_UTF8" string against a regular expression
74           containing Unicode literals could leak an SV on each match attempt.
75           [perl #17140] <https://github.com/perl/perl5/issues/17140>
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77       •   "sprintf("%.*a", -10000, $x)" would cause a buffer overflow due to
78           mishandling of the negative precision value.  [perl #16942]
79           <https://github.com/perl/perl5/issues/16942>
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81       •   "scalar()" on a reference could cause an erroneous assertion
82           failure during compilation.  [perl #16969]
83           <https://github.com/perl/perl5/issues/16969>
84

Acknowledgements

86       Perl 5.30.1 represents approximately 6 months of development since Perl
87       5.30.0 and contains approximately 4,700 lines of changes across 67
88       files from 14 authors.
89
90       Excluding auto-generated files, documentation and release tools, there
91       were approximately 910 lines of changes to 20 .pm, .t, .c and .h files.
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93       Perl continues to flourish into its fourth decade thanks to a vibrant
94       community of users and developers.  The following people are known to
95       have contributed the improvements that became Perl 5.30.1:
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97       Chris 'BinGOs' Williams, Dan Book, David Mitchell, Hugo van der Sanden,
98       James E Keenan, Karen Etheridge, Karl Williamson, Manuel Mausz, Max
99       Maischein, Nicolas R., Sawyer X, Steve Hay, Tom Hukins, Tony Cook.
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101       The list above is almost certainly incomplete as it is automatically
102       generated from version control history.  In particular, it does not
103       include the names of the (very much appreciated) contributors who
104       reported issues to the Perl bug tracker.
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106       Many of the changes included in this version originated in the CPAN
107       modules included in Perl's core.  We're grateful to the entire CPAN
108       community for helping Perl to flourish.
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110       For a more complete list of all of Perl's historical contributors,
111       please see the AUTHORS file in the Perl source distribution.
112

Reporting Bugs

114       If you find what you think is a bug, you might check the perl bug
115       database at <https://rt.perl.org/>.  There may also be information at
116       <http://www.perl.org/>, the Perl Home Page.
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118       If you believe you have an unreported bug, please run the perlbug
119       program included with your release.  Be sure to trim your bug down to a
120       tiny but sufficient test case.  Your bug report, along with the output
121       of "perl -V", will be sent off to perlbug@perl.org to be analysed by
122       the Perl porting team.
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124       If the bug you are reporting has security implications which make it
125       inappropriate to send to a publicly archived mailing list, then see
126       "SECURITY VULNERABILITY CONTACT INFORMATION" in perlsec for details of
127       how to report the issue.
128

Give Thanks

130       If you wish to thank the Perl 5 Porters for the work we had done in
131       Perl 5, you can do so by running the "perlthanks" program:
132
133           perlthanks
134
135       This will send an email to the Perl 5 Porters list with your show of
136       thanks.
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SEE ALSO

139       The Changes file for an explanation of how to view exhaustive details
140       on what changed.
141
142       The INSTALL file for how to build Perl.
143
144       The README file for general stuff.
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146       The Artistic and Copying files for copyright information.
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150perl v5.34.0                      2021-10-18                  PERL5301DELTA(1)
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