=head1 NAME
-[ this is a template for a new perldelta file. Any text flagged as XXX needs
-to be processed before release. ]
-
perldelta - what is new for perl v5.21.3
=head1 DESCRIPTION
If you are upgrading from an earlier release such as 5.21.1, first read
L<perl5212delta>, which describes differences between 5.21.1 and 5.21.2.
-=head1 Notice
-
-XXX Any important notices here
-
=head1 Core Enhancements
=head2 C<defined(@array = LIST)> is no longer fatal
In 5.21.1, C<defined(@array)> was made fatal. This has been relaxed
to not die if the argument is assigning to an array.
+=head2 Floating point parsing has been improved
+
+Parsing and printing of floating point values has been improved.
+
+As a completely new feature, hexadecimal floating point literals
+(like 0x1.23p-4) are now supported, and they can be output with
+C<printf %a>.
+
=head1 Security
=head2 The L<Safe> module could allow outside packages to be replaced
=item *
-L<B::Debug> has been upgraded from version 1.19 to 1.21
+L<B::Debug> has been upgraded from version 1.19 to 1.21.
=item *
=item *
-L<ExtUtils::Manifest> has been upgraded from version 1.64 to 1.65.
+L<ExtUtils::CBuilder> was moved from F<dist> to F<cpan>.
+
+=item *
-The MANIFEST is now opened with C<:raw>, to prevent C<CRLF>s leaking in.
+L<ExtUtils::CBuilder> has been upgraded from version 0.280216 to 0.280217.
+
+=item *
+
+L<ExtUtils::Install> was moved from F<dist> to F<cpan>.
+
+=item *
+
+L<ExtUtils::Manifest> has been upgraded from version 1.64 to 1.65.
+It was also moved from F<dist> to F<cpan>.
=item *
=item *
+L<IPC::Open3> has been upgraded from version 1.17 to 1.18.
+
+=item *
+
+L<Module::CoreList> has been upgraded from version 5.021002 to 5.021003.
+
+=item *
+
+L<Opcode> has been upgraded from version 1.27 to 1.28.
+
+=item *
+
L<perl5db.pl> has been upgraded from version 1.45 to 1.46.
-Fixed the scope level handling of the debugger's C<y> command.
+=item *
+
+L<perlfaq> has been upgraded from version 5.0150044 to 5.0150045.
=item *
L<POSIX> has been upgraded from version 1.41 to 1.42.
-Replaced the thread-unsafe code used to prevent duplicate warning
-messages for using the isxxx() functions. [perl #122476]
-
=item *
L<Safe> has been upgraded from version 2.37 to 2.38.
-Critical bugfix: outside packages could be replaced.
-
=item *
L<Socket> has been upgraded from version 2.014 to 2.015.
-Test suite updates, particularly useful for Solaris and cygwin, and
-a slight change to the pattern used for IPv4 address matching.
+=item *
+
+L<Sys::Hostname> has been upgraded from version 1.18 to 1.19
+
+=item *
+
+L<UNIVERSAL> has been upgraded from version 1.11 to 1.12.
=back
=item *
Recommended replacements for tmpfile, atoi, strtol, and strtoul added.
-
+
=back
=head3 L<perlop>
=head2 Changes to Existing Diagnostics
-XXX Changes (i.e. rewording) of diagnostic messages go here
-
=over 4
=item *
-XXX Describe change here
+C<require> with no argument or undef used to warn about a Null filename; now
+it dies with C<Missing or undefined argument to require>.
=back
=head1 Configuration and Compilation
-XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools
-go here. Any other changes to the Perl build process should be listed here.
-However, any platform-specific changes should be listed in the
-L</Platform Support> section, instead.
-
-[ List changes as a =item entry ].
-
=over 4
=item *
-Internal handling of floating point values has been improved.
-
-=back
-
-=head1 Testing
-
-XXX Any significant changes to the testing of a freshly built perl should be
-listed here. Changes which create B<new> files in F<t/> go here as do any
-large changes to the testing harness (e.g. when parallel testing was added).
-Changes to existing files in F<t/> aren't worth summarizing, although the bugs
-that they represent may be covered elsewhere.
-
-[ List each test improvement as a =item entry ]
-
-=over 4
-
-=item *
-
-XXX
+MurmurHash64A and MurmurHash64B can now be configured as the internal hash
+function.
=back
=head1 Internal Changes
-XXX Changes which affect the interface available to C<XS> code go here. Other
-significant internal changes for future core maintainers should be noted as
-well.
-
-[ List each change as a =item entry ]
-
=over 4
=item *
=head1 Selected Bug Fixes
-XXX Important bug fixes in the core language are summarized here. Bug fixes in
-files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>.
-
-[ List each fix as a =item entry ]
-
=over 4
=item *
=item *
A bug has been fixed where zero-length assertions and code blocks inside of a
-regex could cause L<pos> to see an incorrect value. [perl #122460]
-
-=back
-
-=head1 Known Problems
-
-XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any
-tests that had to be C<TODO>ed for the release would be noted here. Unfixed
-platform specific bugs also go here.
-
-[ List each fix as a =item entry ]
-
-=over 4
-
-=item *
-
-XXX
+regex could cause C<pos> to see an incorrect value. [perl #122460]
=back
-=head1 Errata From Previous Releases
+=head1 Acknowledgements
-=over 4
+Perl 5.21.3 represents approximately 4 weeks of development since Perl 5.21.2
+and contains approximately 21,000 lines of changes across 250 files from 25
+authors.
-=item *
+Excluding auto-generated files, documentation and release tools, there were
+approximately 18,000 lines of changes to 160 .pm, .t, .c and .h files.
-XXX Add anything here that we forgot to add, or were mistaken about, in
-the perldelta of a previous release.
+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 5.21.3:
-=back
+Aaron Crane, Abigail, Alberto Simões, Andy Dougherty, Brian Fraser, Chad
+Granum, Chris 'BinGOs' Williams, Craig A. Berry, Dagfinn Ilmari Mannsåker,
+Daniel Dragan, David Mitchell, Father Chrysostomos, H.Merijn Brand, James E
+Keenan, Jan Dubois, Jarkko Hietaniemi, Karen Etheridge, Karl Williamson, Lukas
+Mai, Peter Martini, Rafael Garcia-Suarez, syber, Tony Cook, Vladimir Marek,
+Yves Orton.
-=head1 Acknowledgements
+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.
-XXX Generate this with:
+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.
- perl Porting/acknowledgements.pl v5.21.2..HEAD
+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
https://perl5.git.perl.org / perl5.git / blobdiff