diff options
author | Steve Hay <steve.m.hay@googlemail.com> | 2015-10-31 14:43:11 +0000 |
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committer | Steve Hay <steve.m.hay@googlemail.com> | 2015-10-31 14:43:11 +0000 |
commit | 2cb4411552801869b48663448a79de1f622d9e51 (patch) | |
tree | cc0e28e52d83ab02bfa9a4588583fa8cfcdc71d4 | |
parent | dbc35eb5feb103a3bb9456bc790f2b560b5d2974 (diff) | |
download | perl-2cb4411552801869b48663448a79de1f622d9e51.tar.gz |
Copy in perl 5.20.3's perldelta file
-rw-r--r-- | MANIFEST | 1 | ||||
-rw-r--r-- | pod/perl.pod | 1 | ||||
-rw-r--r-- | pod/perl5203delta.pod | 312 | ||||
-rw-r--r-- | win32/pod.mak | 4 |
4 files changed, 318 insertions, 0 deletions
@@ -4565,6 +4565,7 @@ pod/perl5184delta.pod Perl changes in version 5.18.4 pod/perl5200delta.pod Perl changes in version 5.20.0 pod/perl5201delta.pod Perl changes in version 5.20.1 pod/perl5202delta.pod Perl changes in version 5.20.2 +pod/perl5203delta.pod Perl changes in version 5.20.3 pod/perl5220delta.pod Perl changes in version 5.22.0 pod/perl561delta.pod Perl changes in version 5.6.1 pod/perl56delta.pod Perl changes in version 5.6 diff --git a/pod/perl.pod b/pod/perl.pod index ee5213ec7b..638e8c935e 100644 --- a/pod/perl.pod +++ b/pod/perl.pod @@ -182,6 +182,7 @@ aux c2ph h2ph h2xs perlbug pl2pm pod2html pod2man splain xsubpp perldelta Perl changes since previous version perl5221delta Perl changes in version 5.22.1 perl5220delta Perl changes in version 5.22.0 + perl5203delta Perl changes in version 5.20.3 perl5202delta Perl changes in version 5.20.2 perl5201delta Perl changes in version 5.20.1 perl5200delta Perl changes in version 5.20.0 diff --git a/pod/perl5203delta.pod b/pod/perl5203delta.pod new file mode 100644 index 0000000000..7c22b7b6f0 --- /dev/null +++ b/pod/perl5203delta.pod @@ -0,0 +1,312 @@ +=encoding utf8 + +=head1 NAME + +perl5203delta - what is new for perl v5.20.3 + +=head1 DESCRIPTION + +This document describes differences between the 5.20.2 release and the 5.20.3 +release. + +If you are upgrading from an earlier release such as 5.20.1, first read +L<perl5202delta>, which describes differences between 5.20.1 and 5.20.2. + +=head1 Incompatible Changes + +There are no changes intentionally incompatible with 5.20.2. If any exist, +they are bugs, and we request that you submit a report. See L</Reporting Bugs> +below. + +=head1 Modules and Pragmata + +=head2 Updated Modules and Pragmata + +=over 4 + +=item * + +L<Errno> has been upgraded from version 1.20_05 to 1.20_06. + +Add B<-P> to the pre-processor command-line on GCC 5. GCC added extra line +directives, breaking parsing of error code definitions. +L<[perl #123784]|https://rt.perl.org/Ticket/Display.html?id=123784> + +=item * + +L<Module::CoreList> has been upgraded from version 5.20150214 to 5.20150822. + +Updated to cover the latest releases of Perl. + +=item * + +L<perl5db.pl> has been upgraded from 1.44 to 1.44_01. + +The debugger would cause an assertion failure. +L<[perl #124127]|https://rt.perl.org/Ticket/Display.html?id=124127> + +=back + +=head1 Documentation + +=head2 Changes to Existing Documentation + +=head3 L<perlfunc> + +=over 4 + +=item * + +Mention that L<C<study()>|perlfunc/study> is currently a no-op. + +=back + +=head3 L<perlguts> + +=over 4 + +=item * + +The OOK example has been updated to account for COW changes and a change in the +storage of the offset. + +=back + +=head3 L<perlhacktips> + +=over 4 + +=item * + +Documentation has been added illustrating the perils of assuming the contents +of static memory pointed to by the return values of Perl wrappers for C library +functions doesn't change. + +=back + +=head3 L<perlpodspec> + +=over 4 + +=item * + +The specification of the POD language is changing so that the default encoding +of PODs that aren't in UTF-8 (unless otherwise indicated) is CP1252 instead of +ISO-8859-1 (Latin1). + +=back + +=head1 Utility Changes + +=head2 L<h2ph> + +=over 4 + +=item * + +B<h2ph> now handles hexadecimal constants in the compiler's predefined macro +definitions, as visible in C<$Config{cppsymbols}>. +L<[perl #123784]|https://rt.perl.org/Ticket/Display.html?id=123784> + +=back + +=head1 Testing + +=over 4 + +=item * + +F<t/perf/taint.t> has been added to see if optimisations with taint issues are +keeping things fast. + +=item * + +F<t/porting/re_context.t> has been added to test that L<utf8> and its +dependencies only use the subset of the C<$1..$n> capture vars that +Perl_save_re_context() is hard-coded to localize, because that function has no +efficient way of determining at runtime what vars to localize. + +=back + +=head1 Platform Support + +=head2 Platform-Specific Notes + +=over 4 + +=item Win32 + +=over 4 + +=item * + +Previously, when compiling with a 64-bit Visual C++, every Perl XS module +(including CPAN ones) and Perl aware C file would unconditionally have around a +dozen warnings from F<hv_func.h>. These warnings have been silenced. GCC (all +bitness) and 32-bit Visual C++ were not affected. + +=item * + +B<miniperl.exe> is now built with B<-fno-strict-aliasing>, allowing 64-bit +builds to complete with GCC 4.8. +L<[perl #123976]|https://rt.perl.org/Ticket/Display.html?id=123976> + +=back + +=back + +=head1 Selected Bug Fixes + +=over 4 + +=item * + +Repeated global pattern matches in scalar context on large tainted strings were +exponentially slow depending on the current match position in the string. +L<[perl #123202]|https://rt.perl.org/Ticket/Display.html?id=123202> + +=item * + +The original visible value of L<C<$E<sol>>|perlvar/$E<sol>> is now preserved +when it is set to an invalid value. Previously if you set C<$/> to a reference +to an array, for example, perl would produce a runtime error and not set PL_rs, +but Perl code that checked C<$/> would see the array reference. +L<[perl #123218]|https://rt.perl.org/Ticket/Display.html?id=123218> + +=item * + +Perl 5.14.0 introduced a bug whereby C<eval { LABEL: }> would crash. This has +been fixed. +L<[perl #123652]|https://rt.perl.org/Ticket/Display.html?id=123652> + +=item * + +Extending an array cloned from a parent thread could result in "Modification of +a read-only value attempted" errors when attempting to modify the new elements. +L<[perl #124127]|https://rt.perl.org/Ticket/Display.html?id=124127> + +=item * + +Several cases of data used to store environment variable contents in core C +code being potentially overwritten before being used have been fixed. +L<[perl #123748]|https://rt.perl.org/Ticket/Display.html?id=123748> + +=item * + +UTF-8 variable names used in array indexes, unquoted UTF-8 HERE-document +terminators and UTF-8 function names all now work correctly. +L<[perl #124113]|https://rt.perl.org/Ticket/Display.html?id=124113> + +=item * + +A subtle bug introduced in Perl 5.20.2 involving UTF-8 in regular expressions +and sometimes causing a crash has been fixed. A new test script has been added +to test this fix; see under L</Testing>. +L<[perl #124109]|https://rt.perl.org/Ticket/Display.html?id=124109> + +=item * + +Some patterns starting with C</.*..../> matched against long strings have been +slow since Perl 5.8, and some of the form C</.*..../i> have been slow since +Perl 5.18. They are now all fast again. +L<[perl #123743]|https://rt.perl.org/Ticket/Display.html?id=123743> + +=item * + +Warning fatality is now ignored when rewinding the stack. This prevents +infinite recursion when the now fatal error also causes rewinding of the stack. +L<[perl #123398]|https://rt.perl.org/Ticket/Display.html?id=123398> + +=item * + +C<setpgrp($nonzero)> (with one argument) was accidentally changed in Perl 5.16 +to mean C<setpgrp(0)>. This has been fixed. + +=item * + +A crash with C<< %::=(); J->${\"::"} >> has been fixed. +L<[perl #125541]|https://rt.perl.org/Ticket/Display.html?id=125541> + +=item * + +Regular expression possessive quantifier Perl 5.20 regression now fixed. +C<qr/>I<PAT>C<{>I<min>,I<max>C<}+>C</> is supposed to behave identically to +C<qr/(?E<gt>>I<PAT>C<{>I<min>,I<max>C<})/>. Since Perl 5.20, this didn't work +if I<min> and I<max> were equal. +L<[perl #125825]|https://rt.perl.org/Ticket/Display.html?id=125825> + +=item * + +Code like C</$a[/> used to read the next line of input and treat it as though +it came immediately after the opening bracket. Some invalid code consequently +would parse and run, but some code caused crashes, so this is now disallowed. +L<[perl #123712]|https://rt.perl.org/Ticket/Display.html?id=123712> + +=back + +=head1 Acknowledgements + +Perl 5.20.3 represents approximately 7 months of development since Perl 5.20.2 +and contains approximately 3,200 lines of changes across 99 files from 26 +authors. + +Excluding auto-generated files, documentation and release tools, there were +approximately 1,500 lines of changes to 43 .pm, .t, .c and .h files. + +Perl continues to flourish into its third decade thanks to a vibrant community +of users and developers. The following people are known to have contributed +the improvements that became Perl 5.20.3: + +Alex Vandiver, Andy Dougherty, Aristotle Pagaltzis, Chris 'BinGOs' Williams, +Craig A. Berry, Dagfinn Ilmari Mannsåker, Daniel Dragan, David Mitchell, +Father Chrysostomos, H.Merijn Brand, James E Keenan, James McCoy, Jarkko +Hietaniemi, Karen Etheridge, Karl Williamson, kmx, Lajos Veres, Lukas Mai, +Matthew Horsfall, Petr Písař, Randy Stauner, Ricardo Signes, Sawyer X, Steve +Hay, Tony Cook, Yves Orton. + +The list above is almost certainly incomplete as it is automatically generated +from version control history. In particular, it does not include the names of +the (very much appreciated) contributors who reported issues to the Perl bug +tracker. + +Many of the changes included in this version originated in the CPAN modules +included in Perl's core. We're grateful to the entire CPAN community for +helping Perl to flourish. + +For a more complete list of all of Perl's historical contributors, please see +the F<AUTHORS> file in the Perl source distribution. + +=head1 Reporting Bugs + +If you find what you think is a bug, you might check the articles recently +posted to the comp.lang.perl.misc newsgroup and the perl bug database at +https://rt.perl.org/ . There may also be information at +http://www.perl.org/ , the Perl Home Page. + +If you believe you have an unreported bug, please run the L<perlbug> program +included with your release. Be sure to trim your bug down to a tiny but +sufficient test case. Your bug report, along with the output of C<perl -V>, +will be sent off to perlbug@perl.org to be analysed by the Perl porting team. + +If the bug you are reporting has security implications, which make it +inappropriate to send to a publicly archived mailing list, then please send it +to perl5-security-report@perl.org. This points to a closed subscription +unarchived mailing list, which includes all the core committers, who will be +able to help assess the impact of issues, figure out a resolution, and help +co-ordinate the release of patches to mitigate or fix the problem across all +platforms on which Perl is supported. Please only use this address for +security issues in the Perl core, not for modules independently distributed on +CPAN. + +=head1 SEE ALSO + +The F<Changes> file for an explanation of how to view exhaustive details on +what changed. + +The F<INSTALL> file for how to build Perl. + +The F<README> file for general stuff. + +The F<Artistic> and F<Copying> files for copyright information. + +=cut diff --git a/win32/pod.mak b/win32/pod.mak index 9ae8efab5b..7e081d63ea 100644 --- a/win32/pod.mak +++ b/win32/pod.mak @@ -39,6 +39,7 @@ POD = perl.pod \ perl5200delta.pod \ perl5201delta.pod \ perl5202delta.pod \ + perl5203delta.pod \ perl5220delta.pod \ perl5221delta.pod \ perl561delta.pod \ @@ -174,6 +175,7 @@ MAN = perl.man \ perl5200delta.man \ perl5201delta.man \ perl5202delta.man \ + perl5203delta.man \ perl5220delta.man \ perl5221delta.man \ perl561delta.man \ @@ -309,6 +311,7 @@ HTML = perl.html \ perl5200delta.html \ perl5201delta.html \ perl5202delta.html \ + perl5203delta.html \ perl5220delta.html \ perl5221delta.html \ perl561delta.html \ @@ -444,6 +447,7 @@ TEX = perl.tex \ perl5200delta.tex \ perl5201delta.tex \ perl5202delta.tex \ + perl5203delta.tex \ perl5220delta.tex \ perl5221delta.tex \ perl561delta.tex \ |