[ 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 v5.29.9
+perldelta - what is new for perl v5.31.2
=head1 DESCRIPTION
-This document describes differences between the 5.29.8 release and the 5.29.9
+This document describes differences between the 5.31.1 release and the 5.31.2
release.
-If you are upgrading from an earlier release such as 5.29.7, first read
-L<perl5298delta>, which describes differences between 5.29.7 and 5.29.8.
+If you are upgrading from an earlier release such as 5.31.0, first read
+L<perl5311delta>, which describes differences between 5.31.0 and 5.31.1.
=head1 Notice
[ List each enhancement as a =head2 entry ]
-=head2 Wildcards in Unicode property value specifications are now
-partially supported
-
-You can now do something like this in a regular expression pattern
-
- qr! \p{nv= /(?x) \A [0-5] \z / }!
-
-which matches all Unicode code points which have numeric value is
-between 0 and 5 inclusive.
-
-This marks another step in implementing the regular expression features
-the Unicode Consortium suggests.
-
-Most properties are supported, with the remainder planned for 5.32.
-Details are in L<perlunicode/Wildcards in Property Values>.
-
-=head2 Unicode 12.0 is supported
-
-For details, see L<https://www.unicode.org/versions/Unicode12.0.0/>.
-
-Because of a change in Unicode release cycles, Perl jumps from Unicode
-10.0 in Perl 5.28 to Unicode 12.0 in Perl 5.30.
-
-=head2 It is now possible to compile perl to always use thread-safe
-locale operations.
-
-Previously, these calls were only used when the perl was compiled to be
-multi-threaded. To always enable them, add
-
- -Accflags='-DUSE_THREAD_SAFE_LOCALE'
-
-to your F<Configure> flags.
-
-
=head1 Security
XXX Any security-related notices go here. In particular, any security
[ List each incompatible change as a =head2 entry ]
-=head2 C<pack()> no longer can return malformed UTF-8
-
-It croaks if it would otherwise return a UTF-8 string that contains
-malformed UTF-8. This protects agains potential security threats. This
-is considered a bug fix as well ([perl #131642]).
-
=head1 Deprecations
XXX Any deprecated features, syntax, modules etc. should be listed here.
=head1 Modules and Pragmata
-XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/>
-go here. If Module::CoreList is updated, generate an initial draft of the
-following sections using F<Porting/corelist-perldelta.pl>. A paragraph summary
-for important changes should then be added by hand. In an ideal world,
-dual-life modules would have a F<Changes> file that could be cribbed.
-
-The list of new and updated modules is modified automatically as part of
-preparing a Perl release, so the only reason to manually add entries here is if
-you're summarising the important changes in the module update. (Also, if the
-manually-added details don't match the automatically-generated ones, the
-release manager will have to investigate the situation carefully.)
-
-[ Within each section, list entries as an =item entry ]
-
-=head2 New Modules and Pragmata
+=head2 Updated Modules and Pragmata
=over 4
=item *
-XXX Remove this section if not applicable.
-
-=back
+L<Devel::PPPort> has been upgraded from version 3.53 to 3.54.
-=head2 Updated Modules and Pragmata
+=item *
-=over 4
+L<Exporter> has been upgraded from version 5.73 to 5.74.
=item *
-L<perl5db.pl> has been upgraded from version 1.54 to 1.55.
-
-Debugging threaded code no longer deadlocks in C<DB::sub> nor
-C<DB::lsub>.
+L<IPC::Cmd> has been upgraded from version 1.02 to 1.04.
=item *
-L<PerlIO::encoding> has been upgraded from version 0.26 to 0.27.
+L<JSON::PP> has been upgraded from version 4.02 to 4.04.
-Warnings enabled by setting the C<WARN_ON_ERR> flag in
-C<$PerlIO::encoding::fallback> are now only produced if warnings are
-enabled with C<use warnings "utf8";> or setting C<$^W>.
+=item *
+
+L<Module::CoreList> has been upgraded from version 5.20190620 to 5.20190720.
=item *
-L<threads::shared> has been upgraded from version 1.59 to 1.60.
+L<Opcode> has been upgraded from version 1.43 to 1.44.
-Added support for extra tracing of locking, this requires a
-C<-DDEBUGGING> and extra compilation flags.
+=item *
-=back
+L<PerlIO::encoding> has been upgraded from version 0.27 to 0.28.
-=head2 Removed Modules and Pragmata
+=item *
-=over 4
+L<Pod::Simple> has been upgraded from version 3.38 to 3.39.
=item *
-XXX
+L<threads::shared> has been upgraded from version 1.60 to 1.61.
=back
=item *
-XXX Describe change here
+C<\N{} here is restricted to one character> is now emitted in the same
+circumstances where previously C<\N{} in inverted character class or as
+a range end-point is restricted to one character> was.
+
+This is due to new circumstances having been added in perl v5.30 that
+weren't covered by the earlier wording.
=back
=item *
-XXX
+The C<ECHO> macro is now defined. This is used in a C<dtrace> rule
+that was originally changed for FreeBSD, and the FreeBSD make
+apparently predefines it. The Solaris make does not predefine C<ECHO>
+which broke this rule on Solaris. [perl #134218]
+
+=item *
+
+Bison versions 3.1 through 3.4 are now supported.
=back
=over 4
-=item XXX-some-platform
+=item Linux
-XXX
+C<cc> will be used to populate C<plibpth> if C<cc> is C<clang>. [perl
+#134189]
+
+=item VMS
+
+C<-Duse64bitint> is now the default on VMS.
=back
=item *
-Added C<newSVsv_nomg()> to copy a SV without processing get magic on
-the source. [perl #132964]
+The PERL_DESTRUCT_LEVEL environment variable was formerly only honored on
+perl binaries built with DEBUGGING support. It is now checked on all perl
+builds. Its normal use is to force perl to individually free every block
+of memory which it has allocated before exiting, which is useful when
+using automated leak detection tools such as valgrind.
+
+=item *
+
+The API eval_sv() now accepts a C<G_RETHROW> flag. If this flag is
+set and an exception is thrown while compiling or executing the
+supplied code, it will be rethrown, and eval_sv() will not return.
+[perl #134177]
+
+=item *
+
+As part of the fix for [perl #2754] perl_parse() now returns non-zero
+if exit(0) is called in a C<BEGIN>, C<UNITCHECK> or C<CHECK> block.
=back
=item *
-C<pack()> no longer can return malformed UTF-8. It croaks if it would
-otherwise return a UTF-8 string that contains malformed UTF-8. This
-protects agains potential security threats. [perl #131642]
+Parsing incomplete hex or binary literals was changed in 5.31.1 to
+treat such a literal as just the 0, leaving the following C<x> or C<b>
+to be parsed as part of the next token. This could lead to some
+silent changes in behaviour, so now incomplete hex or binary literals
+produce a fatal error. [perl #134125]
+
+=item *
+
+eval_pv()'s I<croak_on_error> flag will now throw even if the
+exception is a false overloaded value. [perl #134177]
+
+=item *
+
+C<INIT> blocks and the program itself are no longer run if exit(0) is
+called within a C<BEGIN>, C<UNITCHECK> or C<CHECK> block. [perl
+#2754]
+
+=item *
+
+C<<< open my $fh, ">>+", undef >>> now opens the temporary file in
+append mode - writes will seek to the end of file before writing.
+[perl #134221]
=back
=item *
-XXX
+The VC++ 6.0 build on Windows is currently broken.
+
+=item *
+
+Tests 9-11 in F<t/op/blocks.t> currently fail on Windows.
+[perl #134295]
=back
XXX Generate this with:
- perl Porting/acknowledgements.pl v5.29.8..HEAD
+ perl Porting/acknowledgements.pl v5.31.1..HEAD
=head1 Reporting Bugs
https://perl5.git.perl.org / perl5.git / blobdiff