In perl.git, the branch blead has been updated
<https://perl5.git.perl.org/perl.git/commitdiff/8f15991dea7096140b5c58a083654e964737a7eb?hp=0330c9a2cb2987ce3d725ba1f55c8f7af6cca789>
- Log -----------------------------------------------------------------
commit 8f15991dea7096140b5c58a083654e964737a7eb
Author: Sawyer X <xsawy...@cpan.org>
Date: Mon May 21 16:54:21 2018 +0300
Remove 5.27.x perldelta files
-----------------------------------------------------------------------
Summary of changes:
pod/perl5270delta.pod | 97 -------
pod/perl52710delta.pod | 330 ----------------------
pod/perl52711delta.pod | 256 -----------------
pod/perl5271delta.pod | 434 ----------------------------
pod/perl5272delta.pod | 215 --------------
pod/perl5273delta.pod | 241 ----------------
pod/perl5274delta.pod | 352 -----------------------
pod/perl5275delta.pod | 265 -----------------
pod/perl5276delta.pod | 751 -------------------------------------------------
pod/perl5277delta.pod | 673 --------------------------------------------
pod/perl5278delta.pod | 524 ----------------------------------
pod/perl5279delta.pod | 376 -------------------------
12 files changed, 4514 deletions(-)
delete mode 100644 pod/perl5270delta.pod
delete mode 100644 pod/perl52710delta.pod
delete mode 100644 pod/perl52711delta.pod
delete mode 100644 pod/perl5271delta.pod
delete mode 100644 pod/perl5272delta.pod
delete mode 100644 pod/perl5273delta.pod
delete mode 100644 pod/perl5274delta.pod
delete mode 100644 pod/perl5275delta.pod
delete mode 100644 pod/perl5276delta.pod
delete mode 100644 pod/perl5277delta.pod
delete mode 100644 pod/perl5278delta.pod
delete mode 100644 pod/perl5279delta.pod
diff --git a/pod/perl5270delta.pod b/pod/perl5270delta.pod
deleted file mode 100644
index 11e73b822f..0000000000
--- a/pod/perl5270delta.pod
+++ /dev/null
@@ -1,97 +0,0 @@
-=encoding utf8
-
-=head1 NAME
-
-[ this is a template for a new perldelta file. Any text flagged as XXX needs
-to be processed before release. ]
-
-perl5270delta - what is new for perl v5.27.0
-
-=head1 DESCRIPTION
-
-This document describes differences between the 5.26.0 release and the 5.27.0
-release.
-
-If you are upgrading from an earlier release such as 5.25.0, first read
-L<perl5260delta>, which describes differences between 5.25.0 and 5.26.0.
-
-=head1 Modules and Pragmata
-
-=head2 Updated Modules and Pragmata
-
-=over 4
-
-=item *
-
-L<feature> has been upgraded from version 1.47 to 1.48.
-
-=item *
-
-L<Module::CoreList> has been upgraded from version 5.20170530 to 5.20170531.
-
-=back
-
-=head1 Acknowledgements
-
-Perl 5.26.1 represents approximately 0 weeks of development since Perl 5.26.0
-and contains approximately 7,200 lines of changes across 43 files from 2
-authors.
-
-Excluding auto-generated files, documentation and release tools, there were
-approximately 72 lines of changes to 8 .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 5.26.1:
-
-Ricardo Signes, Sawyer X.
-
-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 perl bug database
-at L<https://rt.perl.org/> . There may also be information at
-L<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 perl...@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 see
-L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION>
-for details of how to report the issue.
-
-=head1 Give Thanks
-
-If you wish to thank the Perl 5 Porters for the work we had done in Perl 5,
-you can do so by running the C<perlthanks> program:
-
- perlthanks
-
-This will send an email to the Perl 5 Porters list with your show of thanks.
-
-=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/pod/perl52710delta.pod b/pod/perl52710delta.pod
deleted file mode 100644
index ef7cfc4aa2..0000000000
--- a/pod/perl52710delta.pod
+++ /dev/null
@@ -1,330 +0,0 @@
-=encoding utf8
-
-=head1 NAME
-
-perl52710delta - what is new for perl v5.27.10
-
-=head1 DESCRIPTION
-
-This document describes differences between the 5.27.9 release and the 5.27.10
-release.
-
-If you are upgrading from an earlier release such as 5.27.8, first read
-L<perl5279delta>, which describes differences between 5.27.8 and 5.27.9.
-
-=head1 Modules and Pragmata
-
-=head2 Updated Modules and Pragmata
-
-=over 4
-
-=item *
-
-L<attributes> has been upgraded from version 0.32 to 0.33
-
-=item *
-
-L<B::Deparse> has been upgraded from version 1.47 to 1.48.
-
-=item *
-
-L<Carp> has been upgraded from version 1.46 to 1.49.
-
-L<Carp>, when generating stack traces, now attempts to work around
-longstanding bugs resulting from Perl's non-reference-counted stack.
-[perl #52610]
-
-Carp has been modified to avoid assuming that objects cannot be
-overloaded without the L<overload> module loaded (this can happen with
-objects created by XS modules). Previously, infinite recursion would
-result if an XS-defined overload method itself called Carp. [perl #132828]
-
-Carp now avoids using C<overload::StrVal>, partly because older versions
-of L<overload> (included with perl 5.14 and earlier) load L<Scalar::Util>
-at run time, which will fail if Carp has been invoked after a syntax error.
-
-L<I18N::Langinfo> has been upgraded from version 0.15 to 0.16.
-
-This module is now available on all platforms, emulating the system
-L<nl_langinfo(3)> on systems that lack it. Some caveats apply, as
-L<detailed in its documentation|I18N::Langinfo>, the most severe being
-that, except for MS Windows, the C<CODESET> item is not implemented on
-those systems, always returning C<"">.
-
-It now sets the UTF-8 flag in its returned scalar if the string contains
-legal non-ASCII UTF-8, and the locale is UTF-8 ([perl #127288].
-
-=item *
-
-L<Encode> has been upgraded from version 2.96 to 2.97.
-
-=item *
-
-L<ExtUtils::MakeMaker> has been upgraded from version 7.32 to 7.34.
-
-=item *
-
-L<ExtUtils::ParseXS> has been upgraded from version 3.38 to 3.39
-
-=item *
-
-L<File::Glob> has been upgraded from version 1.30 to 1.31.
-
-=item *
-
-L<I18N::Langinfo> has been upgraded from version 0.15 to 0.16.
-
-=item *
-
-L<Locale::Codes> has been upgraded from version 3.55 to 3.56.
-
-=item *
-
-L<Module::CoreList> has been upgraded from version 5.20180220 to 5.20180221.
-
-=item *
-
-L<POSIX> has been upgraded from version 1.82 to 1.83.
-
-=item *
-
-L<Scalar::Util> has been upgraded from version 1.49 to 1.50.
-
-=item *
-
-L<Test::Harness> has been upgraded from version 3.39 to 3.42.
-
-=item *
-
-L<Test::Simple> has been upgraded from version 1.302122 to 1.302133.
-
-=item *
-
-L<Time::HiRes> has been upgraded from version 1.9753 to 1.9757.
-
-=item *
-
-L<Time::Piece> has been upgraded from version 1.3203 to 1.3204.
-
-=item *
-
-L<warnings> has been upgraded from version 1.41 to 1.42.
-
-=back
-
-=head1 Documentation
-
-=head2 Changes to Existing Documentation
-
-We have attempted to update the documentation to reflect the changes
-listed in this document. If you find any we have missed, send email
-to L<perl...@perl.org|mailto:perl...@perl.org>.
-
-Additionally, the following selected changes have been made:
-
-=head3 L<perlfunc>
-
-=over 4
-
-=item *
-
-Clarification to require was added to show that
-
- require "Foo/Bar.pm";
-
-is equivalent to:
-
- eval "require Foo::Bar";
-
-=back
-
-=head3 L<perlguts>
-
-=over 4
-
-=item *
-
-Improve documentation related to UTF-8 multibytes.
-
-=back
-
-=head3 L<perlrequick>
-
-=over 4
-
-=item *
-
-Clarifications on metacharacters and character classes
-
-=back
-
-=head3 L<perlretut>
-
-=over 4
-
-=item *
-
-Clarify metacharacters.
-
-=back
-
-=head1 Diagnostics
-
-=head2 Changes to Existing Diagnostics
-
-=over 4
-
-=item *
-
-The new (as of 5.27.8) restriction forbidding use of C<goto> to enter the
-argument of a binary or list expression (see L<perldiag/"Can't
-E<quot>gotoE<quot> into a binary or list expression">) has been relaxed to
-allow entering the I<first> argument of an operator that takes a fixed
-number of arguments, since this is a case that will not cause stack
-corruption. [perl #132854]
-
-=item *
-
-The warning added in 5.27.8 concerning UTF-8 locale compatibility was
-misleading. The new wording and explanation are at
-L<perldiag/Locale '%s' contains (at least) the following characters which
-have unexpected meanings: %s The Perl program will use the expected
-meanings>
-
-=back
-
-=head1 Configuration and Compilation
-
-=over 4
-
-=item *
-
-F<lib/unicore/mktables> now correctly canonicalizes the names of the
-dependencies stored in the files it generates.
-
-F<regen/mk_invlists.pl>, unlike the other F<regen/*.pl> scripts, used
-C<$0> to name itself in the dependencies stored in the files it
-generates. It now uses a literal so that the path stored in the
-generated files doesn't depend on how F<regen/mk_invlists.pl> is
-invoked.
-
-This lack of canonical names could cause test failures in
-F<t/porting/regen.t>. [perl #132925]
-
-=back
-
-=head1 Testing
-
-Tests were added and changed to reflect the other additions and
-changes in this release.
-
-=head1 Internal Changes
-
-=over 4
-
-=item *
-
-The item names passed to the function L<perlapi/Perl_langinfo>,
-introduced in 5.27.4, may no longer be prefixed with C<PERL_>. For
-example, if you want the current floating point radix character, you
-must call it like C<Perl_langinfo(RADIXCHAR)>.
-
-=back
-
-=head1 Selected Bug Fixes
-
-=over 4
-
-=item *
-
-Blead Breaks CPAN: FELIPE/Crypt-Perl [perl #132900]
-
-=item *
-
-Prevent duplicate Config.pm vars [perl #132834]
-
-=item *
-
-Regex assertion failure [perl #132163]
-
-=item *
-
-fix line numbers in multi-line s///
-
-=item *
-
-add an empty file (to be removed next commit)
-
-=item *
-
-warnings.pm: sprintf is faster than concat
-
-=back
-
-=head1 Acknowledgements
-
-Perl 5.27.10 represents approximately 4 weeks of development since Perl
-5.27.9 and contains approximately 80,000 lines of changes across 380 files
-from 18 authors.
-
-Excluding auto-generated files, documentation and release tools, there were
-approximately 75,000 lines of changes to 270 .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 5.27.10:
-
-Aaron Crane, Chris 'BinGOs' Williams, Craig A. Berry, Daniel Dragan, David
-Mitchell, Father Chrysostomos, H.Merijn Brand, James E Keenan, Karl
-Williamson, Pali, Renee Baecker, Sawyer X, Shoichi Kaji, Steve Hay, Todd
-Rinaldo, Tony Cook, Yves Orton, Zefram.
-
-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 perl bug database
-at L<https://rt.perl.org/> . There may also be information at
-L<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 perl...@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 see
-L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION>
-for details of how to report the issue.
-
-=head1 Give Thanks
-
-If you wish to thank the Perl 5 Porters for the work we had done in Perl 5,
-you can do so by running the C<perlthanks> program:
-
- perlthanks
-
-This will send an email to the Perl 5 Porters list with your show of thanks.
-
-=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/pod/perl52711delta.pod b/pod/perl52711delta.pod
deleted file mode 100644
index 4a8bceffe1..0000000000
--- a/pod/perl52711delta.pod
+++ /dev/null
@@ -1,256 +0,0 @@
-=encoding utf8
-
-=head1 NAME
-
-perl52711delta - what is new for perl v5.27.11
-
-=head1 DESCRIPTION
-
-This document describes differences between the 5.27.10 release and the 5.27.11
-release.
-
-If you are upgrading from an earlier release such as 5.27.9, first read
-L<perl52710delta>, which describes differences between 5.27.9 and 5.27.10.
-
-=head1 Security
-
-=head2 [CVE-2017-12837] Heap buffer overflow in regular expression compiler
-
-Compiling certain regular expression patterns with the case-insensitive
-modifier could cause a heap buffer overflow and crash perl. This has now been
-fixed.
-L<[perl #131582]|https://rt.perl.org/Public/Bug/Display.html?id=131582>
-
-=head2 [CVE-2017-12883] Buffer over-read in regular expression parser
-
-For certain types of syntax error in a regular expression pattern, the error
-message could either contain the contents of a random, possibly large, chunk of
-memory, or could crash perl. This has now been fixed.
-L<[perl #131598]|https://rt.perl.org/Public/Bug/Display.html?id=131598>
-
-=head2 [CVE-2017-12814] C<$ENV{$key}> stack buffer overflow on Windows
-
-A possible stack buffer overflow in the C<%ENV> code on Windows has been fixed
-by removing the buffer completely since it was superfluous anyway.
-L<[perl #131665]|https://rt.perl.org/Public/Bug/Display.html?id=131665>
-
-=head1 Performance Enhancements
-
-=over 4
-
-=item *
-
-The start up overhead for creating regular expression patterns with
-Unicode properties (C<\p{...}>) has been greatly reduced in most cases.
-
-=back
-
-=head1 Modules and Pragmata
-
-=head2 Updated Modules and Pragmata
-
-=over 4
-
-=item *
-
-L<bytes> has been upgraded from version 1.05 to 1.06.
-
-=item *
-
-L<Carp> has been upgraded from version 1.49 to 1.50.
-
-=item *
-
-L<Devel::PPPort> has been upgraded from version 3.39 to 3.40.
-
-=item *
-
-L<Exporter> has been upgraded from version 5.72 to 5.73.
-
-=item *
-
-L<ExtUtils::Constant> has been upgraded from version 0.24 to 0.25.
-
-=item *
-
-L<I18N::Langinfo> has been upgraded from version 0.16 to 0.17.
-
-=item *
-
-L<IO> has been upgraded from version 1.38 to 1.39.
-
-=item *
-
-L<Module::CoreList> has been upgraded from version 5.20180221 to 5.20180420.
-
-=item *
-
-L<POSIX> has been upgraded from version 1.83 to 1.84.
-
-=item *
-
-L<subs> has been upgraded from version 1.02 to 1.03.
-
-=item *
-
-L<Time::HiRes> has been upgraded from version 1.9757 to 1.9759.
-
-=item *
-
-L<vars> has been upgraded from version 1.03 to 1.04.
-
-=item *
-
-L<version> has been upgraded from version 0.9918 to 0.9923.
-
-=back
-
-=head1 Documentation
-
-XXX Changes to files in F<pod/> go here. Consider grouping entries by
-file and be sure to link to the appropriate page, e.g. L<perlfunc>.
-
-=head2 New Documentation
-
-XXX Changes which create B<new> files in F<pod/> go here.
-
-=head3 L<XXX>
-
-XXX Description of the purpose of the new file here
-
-=head2 Changes to Existing Documentation
-
-We have attempted to update the documentation to reflect the changes
-listed in this document. If you find any we have missed, send email
-to L<perl...@perl.org|mailto:perl...@perl.org>.
-
-XXX Changes which significantly change existing files in F<pod/> go here.
-However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics>
-section.
-
-Additionally, the following selected changes have been made:
-
-=head3 L<XXX>
-
-=over 4
-
-=item *
-
-XXX Description of the change here
-
-=back
-
-=head1 Diagnostics
-
-The following additions or changes have been made to diagnostic output,
-including warnings and fatal error messages. For the complete list of
-diagnostic messages, see L<perldiag>.
-
-XXX New or changed warnings emitted by the core's C<C> code go here. Also
-include any changes in L<perldiag> that reconcile it to the C<C> code.
-
-=head2 New Diagnostics
-
-XXX Newly added diagnostic messages go under here, separated into New Errors
-and New Warnings
-
-=head3 New Errors
-
-=over 4
-
-=item *
-
-XXX L<message|perldiag/"message">
-
-=back
-
-=head3 New Warnings
-
-=over 4
-
-=item *
-
-XXX L<message|perldiag/"message">
-
-=back
-
-=head2 Changes to Existing Diagnostics
-
-XXX Changes (i.e. rewording) of diagnostic messages go here
-
-=over 4
-
-=item *
-
-XXX Describe change here
-
-=back
-
-=head1 Acknowledgements
-
-Perl 5.27.11 represents approximately 4 weeks of development since Perl
-5.27.10 and contains approximately 440,000 lines of changes across 200 files
-from 21 authors.
-
-Excluding auto-generated files, documentation and release tools, there were
-approximately 440,000 lines of changes to 88 .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 5.27.11:
-
-Aaron Crane, Alexandr Savca, Chris 'BinGOs' Williams, Dagfinn Ilmari
-Mannsåker, Daniel Dragan, David Mitchell, H.Merijn Brand, James E Keenan,
-John Peacock, Karl Williamson, Marc-Philip Werner, Nicholas Clark, Pali,
-Ricardo Signes, Sawyer X, Sergey Aleynikov, Steve Hay, Todd Rinaldo, Tony
-Cook, Yves Orton, Zefram.
-
-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 perl bug database
-at L<https://rt.perl.org/> . There may also be information at
-L<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 perl...@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 see
-L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION>
-for details of how to report the issue.
-
-=head1 Give Thanks
-
-If you wish to thank the Perl 5 Porters for the work we had done in Perl 5,
-you can do so by running the C<perlthanks> program:
-
- perlthanks
-
-This will send an email to the Perl 5 Porters list with your show of thanks.
-
-=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/pod/perl5271delta.pod b/pod/perl5271delta.pod
deleted file mode 100644
index 5d9750dfa3..0000000000
--- a/pod/perl5271delta.pod
+++ /dev/null
@@ -1,434 +0,0 @@
-=encoding utf8
-
-=head1 NAME
-
-perl5271delta - what is new for perl v5.27.1
-
-=head1 DESCRIPTION
-
-This document describes differences between the 5.27.0 release and the 5.27.1
-release.
-
-If you are upgrading from an earlier release such as 5.26.0, first read
-L<perl5270delta>, which describes differences between 5.26.0 and 5.27.0.
-
-=head1 Core Enhancements
-
-=head2 L<C<delete>|perlfunc/delete EXPR> on key/value slices
-
-L<C<delete>|perlfunc/delete EXPR> can now be used on key/value slices,
-returning the keys along with the deleted values.
-L<[perl #131328]|https://rt.perl.org/Ticket/Display.html?id=131328>
-
-=head1 Security
-
-=head2 Default Hash Function Change
-
-Perl 5.27.1 retires various older hash functions which are not viewed as
-sufficiently secure for use in Perl. We now support four general purpose
-hash functions, Siphash (2-4 and 1-3 variants), and Zaphod32, and StadtX
-hash. In addition we support SBOX32 (a form of tabular hashing) for hashing
-short strings, in conjunction with any of the other hash functions provided.
-
-By default Perl is configured to support SBOX hashing of strings up to 24
-characters, in conjunction with StadtX hashing on 64 bit builds, and
-Zaphod32 hashing for 32 bit builds.
-
-You may control these settings with the following options to Configure:
-
- -DPERL_HASH_FUNC_SIPHASH
- -DPERL_HASH_FUNC_SIPHASH13
- -DPERL_HASH_FUNC_STADTX
- -DPERL_HASH_FUNC_ZAPHOD32
-
-To disable SBOX hashing you can use
-
- -DPERL_HASH_USE_SBOX32_ALSO=0
-
-And to set the maximum length to use SBOX32 hashing on with:
-
- -DSBOX32_MAX_LEN=16
-
-The maximum length allowed is 256. There probably isn't much point
-in setting it higher than the default.
-
-=head1 Incompatible Changes
-
-=head2 Comma-less variable lists in formats are no longer allowed
-
-Omitting the commas between variables passed to formats is no longer
-allowed. This has been deprecated since Perl 5.000.
-
-=head2 The C<:locked> and C<:unique> attributes have been removed
-
-These have been no-ops and deprecated since Perl 5.12 and 5.10,
-respectively.
-
-=head2 C<\N{}> with nothing between the braces is now illegal.
-
-This has been deprecated since Perl 5.24.
-
-=head2 Opening the same symbol as both a file and directory handle is no
longer allowed
-
-Using C<open()> and C<opendir()> to associate both a filehandle and a dirhandle
-to the same symbol (glob or scalar) has been deprecated since Perl 5.10.
-
-=head2 Use of bare C<< << >> to mean C<< <<"" >> is no longer allowed
-
-Use of a bare terminator has been deprecated since Perl 5.000.
-
-=head2 Setting $/ to a reference to a non-positive integer no longer allowed
-
-This used to work like setting it to C<undef>, but has been deprecated
-since Perl 5.20.
-
-=head2 Unicode code points with values exceeding C<IV_MAX> are now fatal.
-
-This was deprecated since Perl 5.24.
-
-=head2 C<B::OP::terse> no longer exists.
-
-Use C<B::Concise::b_terse> instead.
-
-=head2 Use of inherited AUTOLOAD for non-methods is no longer allowed.
-
-This was deprecated in Perl 5.004.
-
-=head2 Use of strings with code points over 0xFF is not allowed for
-bitwise string operators
-
-Code points over C<0xFF> do not make sense for bitwise operators.
-
-=head2 Setting C<${^ENCODING}> to a defined value is now illegal
-
-This has been deprecated since Perl 5.22 and a no-op since Perl 5.26.
-
-=head2 Backslash no longer escapes colon in PATH for the -S switch
-
-Previously the C<-S> switch incorrectly treated backslash ("\") as an
-escape for colon when traversing the C<PATH> environment variable.
-[perl #129183]
-
-=head2 the -DH (DEBUG_H) misfeature has been removed
-
-On a perl built with debugging support, the C<H> flag to the C<-D>
-debugging option has been removed. This was supposed to dump hash values,
-but has been broken for many years.
-
-=head1 Deprecations
-
-=head2 Use of L<C<vec>|perlfunc/vec EXPR,OFFSET,BITS> on strings with code
-points above 0xFF is deprecated.
-
-Use of these is nonsensical, as C<vec> is a bit-oriented operation,
-which operates on the underlying UTF-8 representation these strings must
-be in, and will likely give unexpected results.
-
-=head2 Some uses of unescaped C<"{"> are no longer fatal
-
-Perl 5.26.0 fatalized some uses of an unescaped left brace, but an
-exception was made at the last minute, specifically crafted to be a
-minimal change to allow GNU Autoconf to work. This code is heavily
-depended upon, and continues to use the deprecated usage. Its use of an
-unescaped left brace is one where we have no intention of repurposing
-C<"{"> to be something other than itself.
-
-That exception is now generalized to include various other such cases
-where the C<"{"> will not be repurposed. This is to get real experience
-with this more complicated change now, in case we need to issue a dot
-release if we find other things like Autoconf that are important to work
-around.
-
-Note that these uses continue to raise a deprecation message.
-
-=head1 Performance Enhancements
-
-=over 4
-
-=item *
-
-L<File::Glob> has been modified to remove unnecessary backtracking and
-recursion, thanks to Russ Cox. See L<https://research.swtch.com/glob>
-for more details.
-
-=item *
-
-The C<ref()> builtin is now much faster in boolean context, since it no
-longer bothers to construct a temporary string like C<Foo=ARRAY(0x134af48)>.
-
-=back
-
-=head1 Modules and Pragmata
-
-=head2 Updated Modules and Pragmata
-
-=over 4
-
-=item *
-
-L<Archive::Tar> has been upgraded from version 2.24 to 2.26.
-
-=item *
-
-L<B::Deparse> has been upgraded from version 1.40 to 1.41. It includes
-many bug fixes, and in particular, it now deparses variable attributes
-correctly:
-
- my $x :foo; # used to deparse as
- # 'attributes'->import('main', \$x, 'foo'), my $x;
-
-=item *
-
-L<charnames> has been upgraded from version 1.44 to 1.45.
-
-=item *
-
-L<Devel::PPPort> has been upgraded from version 3.35 to 3.36.
-
-=item *
-
-L<DirHandle> has been upgraded from version 1.04 to 1.05.
-
-=item *
-
-L<ExtUtils::Install> has been upgraded from version 2.04 to 2.14.
-
-=item *
-
-L<ExtUtils::MakeMaker> has been upgraded from version 7.24 to 7.30.
-
-=item *
-
-L<File::Path> has been upgraded from version 2.12_01 to 2.14.
-
-=item *
-
-L<Filter::Util::Call> has been upgraded from version 1.55 to 1.57.
-
-=item *
-
-L<GDBM_File> has been upgraded from version 1.15 to 1.16.
-
-=item *
-
-L<Getopt::Long> has been upgraded from version 2.49 to 2.5.
-
-=item *
-
-L<if> has been upgraded from version 0.0606 to 0.0607.
-
-=item *
-
-L<IO::Socket::IP> has been upgraded from version 0.38 to 0.39.
-
-=item *
-
-L<IPC::Cmd> has been upgraded from version 0.96 to 0.98.
-
-=item *
-
-L<JSON::PP> has been upgraded from version 2.27400_02 to 2.94.
-
-=item *
-
-L<Locale::Codes> has been upgraded from version 3.42 to 3.52.
-
-=item *
-
-L<Module::CoreList> has been upgraded from version 5.20170620 to 5.20170621.
-
-=item *
-
-L<mro> has been upgraded from version 1.20 to 1.21.
-
-=item *
-
-L<PerlIO::scalar> has been upgraded from version 0.26 to 0.27.
-
-=item *
-
-L<PerlIO::via> has been upgraded from version 0.16 to 0.17.
-
-=item *
-
-L<Storable> has been upgraded from version 2.62 to 2.63.
-
-=item *
-
-L<Test::Harness> has been upgraded from version 3.38 to 3.39.
-
-=item *
-
-L<threads> has been upgraded from version 2.15 to 2.16.
-
-=item *
-
-L<threads::shared> has been upgraded from version 1.56 to 1.57.
-
-=item *
-
-L<version> has been upgraded from version 0.9917 to 0.9918.
-
-=back
-
-=head1 Testing
-
-Tests were added and changed to reflect the other additions and
-changes in this release. Furthermore, these significant changes were
-made:
-
-=over 4
-
-=item *
-
-Testing of the XS-APItest directory is now done in parallel, where
-applicable.
-
-=item *
-
-Perl now includes a default F<.travis.yml> file for Travis CI testing
-on github mirrors. [perl #123981]
-
-=back
-
-=head1 Platform Support
-
-=head2 Platform-Specific Notes
-
-=over 4
-
-=item Windows
-
-=over 4
-
-=item *
-
-Support for compiling perl on Windows using Microsoft Visual Studio 2017
-(containing Visual C++ 14.1) has been added.
-
-=back
-
-=back
-
-=head1 Internal Changes
-
-=over 4
-
-=item *
-
-The C<PL_statbuf> interpreter variable has been removed.
-
-=item *
-
-The deprecated function C<to_utf8_case()>, accessible from XS code, has
-been removed.
-
-=item *
-
-A new function
-L<C<is_utf8_invariant_string_loc()>|perlapi/is_utf8_invariant_string_loc>
-has been added that is like
-L<C<is_utf8_invariant_string()>|perlapi/is_utf8_invariant_string>
-but takes an extra pointer parameter into which is stored the location
-of the first variant character, if any are found.
-
-=back
-
-=head1 Selected Bug Fixes
-
-=over 4
-
-=item *
-
-Fetching the name of a glob that was previously UTF-8 but wasn't any
-longer would return that name flagged as UTF-8. [perl #131263]
-
-=item *
-
-The perl C<sprintf()> function (via the underlying C function
-C<Perl_sv_vcatpvfn_flags()>) has been heavily reworked to fix many minor
-bugs, including the integer wrapping of large width and precision
-specifiers and potential buffer overruns. It has also been made faster in
-many cases.
-
-=item *
-
-Exiting from an C<eval>, whether normally or via an exception, now always
-frees temporary values (possibly calling destructors) I<before> setting
-C<$@>. For example:
-
- sub DESTROY { eval { die "died in DESTROY"; } }
- eval { bless []; };
- # $@ used to be equal to "died in DESTROY" here; it's now "".
-
-=back
-
-=head1 Acknowledgements
-
-Perl 5.27.1 represents approximately 3 weeks of development since Perl 5.27.0
-and contains approximately 62,000 lines of changes across 510 files from 30
-authors.
-
-Excluding auto-generated files, documentation and release tools, there were
-approximately 55,000 lines of changes to 380 .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 5.27.1:
-
-Aaron Crane, Abigail, Andy Dougherty, Andy Lester, Aristotle Pagaltzis, Chris
-'BinGOs' Williams, Craig A. Berry, Dagfinn Ilmari Mannsåker, Dan Collins,
-David Mitchell, Eric Herman, Eugen Konkov, Father Chrysostomos, Graham Knop,
-H.Merijn Brand, Jacques Germishuys, James E Keenan, Jerry D. Hedden, John
-Peacock, Karl Williamson, Ken Cotterill, Lukas Mai, Matthew Horsfall, Sawyer X,
-Steve Hay, Sullivan Beck, Thomas Sibley, Tony Cook, Yves Orton, Zefram.
-
-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 perl bug database
-at L<https://rt.perl.org/> . There may also be information at
-L<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 perl...@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 see
-L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION>
-for details of how to report the issue.
-
-=head1 Give Thanks
-
-If you wish to thank the Perl 5 Porters for the work we had done in Perl 5,
-you can do so by running the C<perlthanks> program:
-
- perlthanks
-
-This will send an email to the Perl 5 Porters list with your show of thanks.
-
-=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/pod/perl5272delta.pod b/pod/perl5272delta.pod
deleted file mode 100644
index 5d2653c1ad..0000000000
--- a/pod/perl5272delta.pod
+++ /dev/null
@@ -1,215 +0,0 @@
-=encoding utf8
-
-=head1 NAME
-
-perl5272delta - what is new for perl v5.27.2
-
-=head1 DESCRIPTION
-
-This document describes differences between the 5.27.1 release and the 5.27.2
-release.
-
-If you are upgrading from an earlier release such as 5.27.0, first read
-L<perl5271delta>, which describes differences between 5.27.0 and 5.27.1.
-
-=head1 Core Enhancements
-
-=head2 Unicode 10.0 is supported
-
-A list of changes is at
-L<http://www.unicode.org/versions/Unicode10.0.0>.
-
-=head1 Modules and Pragmata
-
-=head2 Updated Modules and Pragmata
-
-=over 4
-
-=item *
-
-L<arybase> has been upgraded from version 0.12 to 0.13.
-
-=item *
-
-L<Carp> has been upgraded from version 1.42 to 1.43.
-
-=item *
-
-L<Encode> has been upgraded from version 2.88 to 2.92.
-
-=item *
-
-L<encoding> has been upgraded from version 2.19 to 2.20.
-
-=item *
-
-L<ExtUtils::CBuilder> has been upgraded from version 0.280225 to 0.280228.
-
-=item *
-
-L<feature> has been upgraded from version 1.48 to 1.49.
-
-=item *
-
-L<File::Glob> has been upgraded from version 1.28 to 1.29.
-
-=item *
-
-L<File::Spec> and L<Cwd> have been upgraded from version 3.67 to 3.68.
-
-=item *
-
-L<List::Util> has been upgraded from version 1.46_02 to 1.48.
-
-=item *
-
-L<Math::BigRat> has been upgraded from version 0.2611 to 0.2613.
-
-=item *
-
-L<Module::CoreList> has been upgraded from version 5.20170621 to 5.20170720.
-
-=item *
-
-L<Opcode> has been upgraded from version 1.39 to 1.40.
-
-=item *
-
-L<PerlIO::scalar> has been upgraded from version 0.27 to 0.29.
-
-=item *
-
-L<POSIX> has been upgraded from version 1.76 to 1.77.
-
-=item *
-
-L<re> has been upgraded from version 0.34 to 0.35.
-
-=item *
-
-L<Scalar::Util> has been upgraded from version 1.46_02 to 1.48.
-
-=item *
-
-L<Time::HiRes> has been upgraded from version 1.9741 to 1.9743.
-
-=item *
-
-L<Time::Piece> has been upgraded from version 1.31 to 1.3201.
-
-=back
-
-=head1 Selected Bug Fixes
-
-=over 4
-
-=item *
-
-List assignment (C<aassign>) could in some rare cases allocate an
-entry on the mortal stack and leave the entry uninitialized. [perl
-#131570]
-
-=item *
-
-Attempting to apply an attribute to an C<our> variable where a
-function of that name already exists could result in a NULL pointer
-being supplied where an SV was expected, crashing perl. [perl
-#131597]
-
-=item *
-
-C<split ' '> now correctly handles the argument being split when in the
-scope of the L<< C<unicode_strings>|feature/"The 'unicode_strings' feature"
->> feature. Previously, when a string using the single-byte internal
-representation contained characters that are whitespace by Unicode rules but
-not by ASCII rules, it treated those characters as part of fields rather
-than as field separators. [perl #130907]
-
-=item *
-
-Several built-in functions previously had bugs that could cause them to
-write to the internal stack without allocating room for the item being
-written. In rare situations, this could have led to a crash. These bugs have
-now been fixed, and if any similar bugs are introduced in future, they will
-be detected automatically in debugging builds.
-
-=item *
-
-Using a symbolic ref with postderef syntax as the key in a hash lookup was
-yielding an assertion failure on debugging builds. [perl #131627]
-
-=item *
-
-Array and hash variables whose names begin with a caret now admit indexing
-inside their curlies when interpolated into strings, as in C<<
-"${^CAPTURE[0]}" >> to index C<@{^CAPTURE}>. [perl #131664]
-
-=back
-
-=head1 Acknowledgements
-
-Perl 5.27.2 represents approximately 4 weeks of development since Perl 5.27.1
-and contains approximately 26,000 lines of changes across 290 files from 18
-authors.
-
-Excluding auto-generated files, documentation and release tools, there were
-approximately 9,700 lines of changes to 150 .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 5.27.2:
-
-Aaron Crane, Alberto Simões, Chris 'BinGOs' Williams, Dagfinn Ilmari
-Mannsåker, David Mitchell, E. Choroba, Eric Herman, Father Chrysostomos, James
-E Keenan, Karl Williamson, Lukas Mai, Ricardo Signes, Sawyer X, Steve Hay, Tony
-Cook, Vitali Peil, Yves Orton, Zefram.
-
-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 perl bug database
-at L<https://rt.perl.org/> . There may also be information at
-L<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 perl...@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 see
-L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION>
-for details of how to report the issue.
-
-=head1 Give Thanks
-
-If you wish to thank the Perl 5 Porters for the work we had done in Perl 5,
-you can do so by running the C<perlthanks> program:
-
- perlthanks
-
-This will send an email to the Perl 5 Porters list with your show of thanks.
-
-=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/pod/perl5273delta.pod b/pod/perl5273delta.pod
deleted file mode 100644
index 5569d6d407..0000000000
--- a/pod/perl5273delta.pod
+++ /dev/null
@@ -1,241 +0,0 @@
-=encoding utf8
-
-=head1 NAME
-
-perl5273delta - what is new for perl v5.27.3
-
-=head1 DESCRIPTION
-
-This document describes differences between the 5.27.2 release and the 5.27.3
-release.
-
-If you are upgrading from an earlier release such as 5.27.1, first read
-L<perl5272delta>, which describes differences between 5.27.1 and 5.27.2.
-
-=head1 Deprecations
-
-=head2 Module removals
-
-The following modules will be removed from the core distribution in a
-future release, and will at that time need to be installed from CPAN.
-Distributions on CPAN which require these modules will need to list them as
-prerequisites.
-
-The core versions of these modules will now issue C<"deprecated">-category
-warnings to alert you to this fact. To silence these deprecation warnings,
-install the modules in question from CPAN.
-
-Note that these are (with rare exceptions) fine modules that you are encouraged
-to continue to use. Their disinclusion from core primarily hinges on their
-necessity to bootstrapping a fully functional, CPAN-capable Perl installation,
-not usually on concerns over their design.
-
-=over
-
-=item B::Debug
-
-=back
-
-=head1 Performance Enhancements
-
-=over 4
-
-=item *
-
-C<SvTRUE()> is now more efficient.
-
-=item *
-
-C<keys()> in void and scalar contexts is now more efficient.
-
-=item *
-
-Various integer-returning ops are now more efficient in scalar/boolean context.
-
-=item *
-
-C<< if (index(...) != -1) { ... } >> is now more efficient.
-
-=item *
-
-C<for()> loops and similar constructs are now more efficient in most cases.
-
-=back
-
-=head1 Modules and Pragmata
-
-=head2 Updated Modules and Pragmata
-
-=over 4
-
-=item *
-
-L<B> has been upgraded from version 1.68 to 1.69.
-
-=item *
-
-L<B::Concise> has been upgraded from version 1.000 to 1.001.
-
-=item *
-
-L<B::Debug> has been upgraded from version 1.24 to 1.25.
-NOTE: L<B::Debug> is deprecated and may be removed from a future version of
Perl.
-
-=item *
-
-L<B::Deparse> has been upgraded from version 1.41 to 1.42.
-
-=item *
-
-L<base> has been upgraded from version 2.25 to 2.26.
-
-=item *
-
-L<Data::Dumper> has been upgraded from version 2.167 to 2.167_02.
-
-=item *
-
-L<Devel::Peek> has been upgraded from version 1.26 to 1.27.
-
-=item *
-
-L<ExtUtils::Constant> has been upgraded from version 0.23 to 0.24.
-
-=item *
-
-L<ExtUtils::ParseXS> has been upgraded from version 3.34 to 3.35.
-
-=item *
-
-L<ExtUtils::Typemaps> has been upgraded from version 3.34 to 3.35.
-
-=item *
-
-L<Filter::Simple> has been upgraded from version 0.93 to 0.94.
-
-=item *
-
-L<Module::CoreList> has been upgraded from version 5.20170720 to 5.20170821.
-
-=item *
-
-L<SelfLoader> has been upgraded from version 1.23 to 1.24.
-
-=item *
-
-L<Storable> has been upgraded from version 2.63 to 2.64.
-
-=item *
-
-L<threads> has been upgraded from version 2.16 to 2.17.
-
-=item *
-
-L<utf8> has been upgraded from version 1.19 to 1.20.
-
-=back
-
-=head1 Configuration and Compilation
-
-=over 4
-
-=item *
-
-On GCC, C<-Werror=pointer-arith> is now enabled by default,
-disallowing arithmetic on void and function pointers.
-
-=back
-
-=head1 Selected Bug Fixes
-
-=over 4
-
-=item *
-
-Fixed a duplicate symbol failure with C<-flto -mieee-fp> builds.
-F<pp.c> defined C<_LIB_VERSION> which C<-lieee> already defines. [perl
-#131786]
-
-=item *
-
-The tokenizer no longer consumes the exponent part of a floating
-point number if it's incomplete. [perl #131725]
-
-=item *
-
-On non-threaded builds, for C<m/$null/> where C<$null> is an empty
-string is no longer treated as if the C</o> flag was present when the
-previous matching match operator included the C</o> flag. The
-rewriting used to implement this behavior could confuse the
-interpreter. This matches the behaviour of threaded builds. [perl
-#124368]
-
-=back
-
-=head1 Acknowledgements
-
-Perl 5.27.3 represents approximately 5 weeks of development since Perl 5.27.2
-and contains approximately 5,600 lines of changes across 150 files from 19
-authors.
-
-Excluding auto-generated files, documentation and release tools, there were
-approximately 4,000 lines of changes to 84 .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 5.27.3:
-
-Aaron Crane, Aristotle Pagaltzis, Chris 'BinGOs' Williams, Craig A. Berry,
-Dagfinn Ilmari Mannsåker, Daniel Dragan, David Mitchell, Father Chrysostomos,
-James E Keenan, Karl Williamson, Ken Brown, Lukas Mai, Matthew Horsfall,
-Nicholas Clark, Robin Barker, Steffen Müller, Steve Hay, Tony Cook, Zefram.
-
-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 perl bug database
-at L<https://rt.perl.org/> . There may also be information at
-L<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 perl...@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 see
-L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION>
-for details of how to report the issue.
-
-=head1 Give Thanks
-
-If you wish to thank the Perl 5 Porters for the work we had done in Perl 5,
-you can do so by running the C<perlthanks> program:
-
- perlthanks
-
-This will send an email to the Perl 5 Porters list with your show of thanks.
-
-=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/pod/perl5274delta.pod b/pod/perl5274delta.pod
deleted file mode 100644
index 3e36538e3e..0000000000
--- a/pod/perl5274delta.pod
+++ /dev/null
@@ -1,352 +0,0 @@
-=encoding utf8
-
-=head1 NAME
-
-perl5274delta - what is new for perl v5.27.4
-
-=head1 DESCRIPTION
-
-This document describes differences between the 5.27.3 release and the 5.27.4
-release.
-
-If you are upgrading from an earlier release such as 5.27.2, first read
-L<perl5273delta>, which describes differences between 5.27.2 and 5.27.3.
-
-=head1 Core Enhancements
-
-=head2 In-place editing is now safer
-
-Previously in-place editing would delete or rename the input file
-as soon as you started working on a new file.
-
-Without backups this would result in loss of data if there was an
-error, such as a full disk, when writing to the output file.
-
-This has changed so that the input file isn't replaced until the
-output file has been completely written and successfully closed.
-
-This works by creating a work file in the same directory, which is
-renamed over the input file once the output file is complete.
-
-Incompatibilities:
-
-=over
-
-=item *
-
-Since this renaming needs to only happen once, if you create a thread
-or child process, that renaming will only happen in the original
-thread or process.
-
-=item *
-
-If you change directories while processing a file, and your operating
-system doesn't provide the C<unlinkat()>, C<renameat()> and C<fchmodat()>
-functions, the final rename step may fail.
-
-=back
-
-L<[perl #127663]|https://rt.perl.org/Public/Bug/Display.html?id=127663>
-
-=head1 Security
-
-=head2 [CVE-2017-12837] Heap buffer overflow in regular expression compiler
-
-Compiling certain regular expression patterns with the case-insensitive
-modifier could cause a heap buffer overflow and crash perl. This has now been
-fixed.
-L<[perl #131582]|https://rt.perl.org/Public/Bug/Display.html?id=131582>
-
-=head2 [CVE-2017-12883] Buffer over-read in regular expression parser
-
-For certain types of syntax error in a regular expression pattern, the error
-message could either contain the contents of a random, possibly large, chunk of
-memory, or could crash perl. This has now been fixed.
-L<[perl #131598]|https://rt.perl.org/Public/Bug/Display.html?id=131598>
-
-=head2 [CVE-2017-12814] C<$ENV{$key}> stack buffer overflow on Windows
-
-A possible stack buffer overflow in the C<%ENV> code on Windows has been fixed
-by removing the buffer completely since it was superfluous anyway.
-L<[perl #131665]|https://rt.perl.org/Public/Bug/Display.html?id=131665>
-
-=head1 Performance Enhancements
-
-=over 4
-
-=item *
-
-Slightly improved performance when parsing stash names.
-L<[perl #129990]|https://rt.perl.org/Public/Bug/Display.html?id=129990>
-
-=back
-
-=head1 Modules and Pragmata
-
-=head2 Updated Modules and Pragmata
-
-=over 4
-
-=item *
-
-L<attributes> has been upgraded from version 0.3 to 0.31.
-
-=item *
-
-L<File::Glob> has been upgraded from version 1.29 to 1.30.
-
-=item *
-
-L<I18N::Langinfo> has been upgraded from version 0.13 to 0.14.
-This fixes a bug in which the underlying locale was ignored for the
-C<RADIXCHAR> (always was returned as a dot, and the C<THOUSEP> (always
-empty). Now the locale-appropriate values are returned.
-
-=item *
-
-L<Module::CoreList> has been upgraded from version 5.20170821 to 5.20170920.
-
-=item *
-
-L<sort> has been upgraded from version 2.02 to 2.03.
-
-=item *
-
-L<Term::ReadLine> has been upgraded from version 1.16 to 1.17.
-
-=item *
-
-L<threads> has been upgraded from version 2.17 to 2.18.
-
-=item *
-
-L<VMS::Stdio> has been upgraded from version 2.41 to 2.42.
-
-=back
-
-=head2 Removed Modules and Pragmata
-
-=over 4
-
-=item *
-
-The C<VMS::stdio> compatibility shim has been removed.
-
-=back
-
-=head1 Diagnostics
-
-The following additions or changes have been made to diagnostic output,
-including warnings and fatal error messages. For the complete list of
-diagnostic messages, see L<perldiag>.
-
-=head2 Changes to Existing Diagnostics
-
-=over 4
-
-=item *
-
-A false-positive warning that was issued when using a
-numerically-quantified sub-pattern in a recursive regex has been
-silenced. L<[perl
#131868]|https://rt.perl.org/Public/Bug/Display.html?id=131868>
-
-=back
-
-=head1 Testing
-
-Tests were added and changed to reflect the other additions and changes
-in this release.
-
-=head1 Platform Support
-
-=head2 Platform-Specific Notes
-
-=over 4
-
-=item Darwin
-
-Perl now correctly uses reentrant functions, like C<asctime_r>, on
-versions of Darwin that have support for them.
-
-=back
-
-=head1 Internal Changes
-
-=over 4
-
-=item *
-
-A new function, L<C<Perl_langinfo()>|perlapi/Perl_langinfo> has been
-added. It is an (almost) drop-in replacement for the system
-C<nl_langinfo(3)>, but works on platforms that lack that; as well as
-being more thread-safe, and hiding some gotchas with locale handling
-from the caller. Code that uses this, needn't use L<C<localeconv(3)>>
-(and be affected by the gotchas) to find the decimal point, thousands
-separator, or currency symbol. See L<perlapi/Perl_langinfo>.
-
-=item *
-
-A new API function L<C<sv_rvunweaken()>|perlapi/sv_rvunweaken> has
-been added to complement L<C<sv_rvweaken()>|perlapi/sv_rvweaken>.
-The implementation was taken from L<Scalar::Util/unweaken>.
-
-=item *
-
-A new flag, C<SORTf_UNSTABLE>, has been added. This will allow a
-future commit to make mergesort unstable when the user specifies ‘no
-sort stable’, since it has been decided that mergesort should remain
-stable by default.
-
-=back
-
-=head1 Selected Bug Fixes
-
-=over 4
-
-=item *
-
-The internal stack usage checks introduced in 5.27.2 are now also done
-by the C<entersub> operator when calling XSUBs. This means we can
-report which XSUB failed to allocate enough stack space.
-L<[perl #131975]|https://rt.perl.org/Public/Bug/Display.html?id=131975>
-
-=item *
-
-Parsing a C<sub> definition could cause a use after free if the C<sub>
-keyword was followed by whitespace including newlines (and comments.)
-L<[perl #131836]|https://rt.perl.org/Public/Bug/Display.html?id=131836>
-
-=item *
-
-The tokenizer now correctly adjusts a parse pointer when skipping
-whitespace in a C< ${identifier} > construct.
-L<[perl #131949]|https://rt.perl.org/Public/Bug/Display.html?id=131949>
-
-=item *
-
-Accesses to C<${^LAST_FH}> no longer assert after using any of a
-variety of I/O operations on a non-glob.
-L<[perl #128263]|https://rt.perl.org/Public/Bug/Display.html?id=128263>
-
-=item *
-
-The C<Copy()>, C<Move()>, C<Zero()> macros and their variants now
-assert if the pointers supplied are C<NULL>. ISO C considers
-supplying NULL pointers to the functions these macros are built upon
-as undefined behaviour even when their count parameters are zero.
-Based on these assertions and the original bug report three macro
-calls were made conditional.
-L<[perl #131746]|https://rt.perl.org/Public/Bug/Display.html?id=131746>
-L<[perl #131892]|https://rt.perl.org/Public/Bug/Display.html?id=131892>
-
-=item *
-
-The in-place sort optimisation now correctly strengthens weak
-references using the new L<C<sv_rvunweaken()>|perlapi/sv_rvunweaken>
-API function.
-
-=item *
-
-Only the C<=> operator is permitted for defining defaults for
-parameters in subroutine signatures. Previously other assignment
-operators, e.g. C<+=>, were also permitted.
-L<[perl #131777]|https://rt.perl.org/Public/Bug/Display.html?id=131777>
-
-=item *
-
-Package names are now always included in C<:prototype> warnings
-L<[perl #131833]|https://rt.perl.org/Public/Bug/Display.html?id=131833>
-
-=item *
-
-Creating a thread with no parameters no longer tries to C<Copy()> a
-null pointer. This fixes an assertion failure and allows threaded
-builds to work again.
-
-=item *
-
-The C<je_old_stack_hwm> field, previously only found in the C<jmpenv>
-structure on debugging builds, has been added to non-debug builds as
-well. This fixes an issue with some CPAN modules caused by the size of
-this structure varying between debugging and non-debugging builds.
-L<[perl #131942]|https://rt.perl.org/Public/Bug/Display.html?id=131942>
-
-=item *
-
-The arguments to the C<ninstr()> macro are now correctly parenthesized.
-
-=item *
-
-A NULL pointer dereference in the C<S_regmatch()> function has been
-fixed.
-L<[perl #132017]|https://rt.perl.org/Public/Bug/Display.html?id=132017>
-
-=back
-
-=head1 Acknowledgements
-
-Perl 5.27.4 represents approximately 4 weeks of development since Perl 5.27.3
-and contains approximately 5,000 lines of changes across 140 files from 18
-authors.
-
-Excluding auto-generated files, documentation and release tools, there were
-approximately 3,300 lines of changes to 76 .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 5.27.4:
-
-Abigail, Chris 'BinGOs' Williams, Dagfinn Ilmari Mannsåker, David Mitchell,
-Dominic Hargreaves, Father Chrysostomos, H.Merijn Brand, James E Keenan, Jarkko
-Hietaniemi, John SJ Anderson, Karl Williamson, Lukas Mai, Matthew Horsfall,
-Neil Bowers, Nicolas R., 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 perl bug database
-at L<https://rt.perl.org/> . There may also be information at
-L<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 perl...@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 see
-L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION>
-for details of how to report the issue.
-
-=head1 Give Thanks
-
-If you wish to thank the Perl 5 Porters for the work we had done in Perl 5,
-you can do so by running the C<perlthanks> program:
-
- perlthanks
-
-This will send an email to the Perl 5 Porters list with your show of thanks.
-
-=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.
-
... 2622 lines suppressed ...
--
Perl5 Master Repository
