X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/4d4ca6a56be9d33d931a2fa0cdd3ab836ad49e79..935c8d19ecf9ad3ea7589ffd1721e6ba1c671ed9:/pod/perldelta.pod

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index 3d9f5f4..42b7ee5 100644
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -1,24 +1,20 @@
 =encoding utf8
 
-=for comment
-This has been completed up to dbe92b04c, except for 1b9f127-fad448f, which
-Karl Williamson says he will do.
-
 =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 v5.13.8
+perldelta - what is new for perl v5.13.9
 
 =head1 DESCRIPTION
 
 This document describes differences between the 5.13.8 release and
-the 5.13.7 release.
+the 5.13.9 release.
 
-If you are upgrading from an earlier release such as 5.13.6, first read
-L<perl5137delta>, which describes differences between 5.13.6 and
-5.13.7.
+If you are upgrading from an earlier release such as 5.13.7, first read
+L<perl5138delta>, which describes differences between 5.13.7 and
+5.13.8.
 
 =head1 Notice
 
@@ -32,53 +28,6 @@ here, but most should go in the L</Performance Enhancements> section.
 
 [ List each enhancement as a =head2 entry ]
 
-=head2 C<-d:-foo> calls C<Devel::foo::unimport>
-
-The syntax C<-dI<B<:>foo>> was extended in 5.6.1 to make C<-dI<:fooB<=bar>>>
-equivalent to C<-MDevel::foo=bar>, which expands
-internally to C<use Devel::foo 'bar';>.
-F<perl> now allows prefixing the module name with C<->, with the same
-semantics as C<-M>, I<i.e.>
-
-=over 4
-
-=item C<-d:-foo>
-
-Equivalent to C<-M-Devel::foo>, expands to
-C<no Devel::foo;>, calls C<< Devel::foo->unimport() >>
-if the method exists.
-
-=item C<-d:-foo=bar>
-
-Equivalent to C<-M-Devel::foo=bar>, expands to C<no Devel::foo 'bar';>,
-calls C<< Devel::foo->unimport('bar') >> if the method exists.
-
-=back
-
-This is particularly useful to suppresses the default actions of a
-C<Devel::*> module's C<import> method whilst still loading it for debugging.
-
-=head2 Filehandle method calls load IO::File on demand
-
-When a method call on a filehandle would die because the method can not
-be resolved and L<IO::File> has not been loaded, Perl now loads IO::File
-via C<require> and attempts method resolution again:
-
-  open my $fh, ">", $file;
-  $fh->binmode(":raw");     # loads IO::File and succeeds
-
-This also works for globs like STDOUT, STDERR and STDIN:
-
-  STDOUT->autoflush(1);
-
-Because this on-demand load only happens if method resolution fails, the
-legacy approach of manually loading an IO::File parent class for partial
-method support still works as expected:
-
-  use IO::Handle;
-  open my $fh, ">", $file;
-  $fh->autoflush(1);        # IO::File not loaded
-
 =head1 Security
 
 XXX Any security-related notices go here.  In particular, any security
@@ -89,20 +38,12 @@ L</Selected Bug Fixes> section.
 
 =head1 Incompatible Changes
 
-=head2 Attempting to use C<:=> as an empty attribute list is now a syntax error
-
-Previously C<my $pi := 4;> was exactly equivalent to C<my $pi : = 4;>,
-with the C<:> being treated as the start of an attribute list, ending before
-the C<=>. The use of C<:=> to mean C<: => was deprecated in 5.12.0, and is now
-a syntax error. This will allow the future use of C<:=> as a new token.
+XXX For a release on a stable branch, this section aspires to be:
 
-We find no Perl 5 code on CPAN using this construction, outside the core's
-tests for it, so we believe that this change will have very little impact on
-real-world codebases.
+    There are no changes intentionally incompatible with 5.XXX.XXX. If any
+    exist, they are bugs and reports are welcome.
 
-If it is absolutely necessary to have empty attribute lists (for example,
-because of a code generator) then avoid the error by adding a space before
-the C<=>.
+[ List each incompatible change as a =head2 entry ]
 
 =head1 Deprecations
 
@@ -112,20 +53,6 @@ listed as an updated module in the L</Modules and Pragmata> section.
 
 [ List each deprecation as a =head2 entry ]
 
-=head2 C<?PATTERN?> is deprecated
-
-C<?PATTERN?> (without the initial m) has been deprecated and now produces
-a warning.
-
-=head2 C<sv_compile_2op> is now deprecated
-
-The C<sv_compile_2op> is now deprecated, and will be removed. Searches suggest
-that nothing on CPAN is using it, so this should have zero impact.
-
-It attempted to provide an API to compile code down to an optree, but failed
-to bind correctly to lexicals in the enclosing scope. It's not possible to
-fix this problem within the constraints of its parameters and return value.
-
 =head1 Performance Enhancements
 
 XXX Changes which enhance performance without changing behaviour go here. There
@@ -159,69 +86,45 @@ cribbed.
 
 =item *
 
-XXX
-
-=back
-
-=head2 Updated Modules and Pragmata
-
-=over 4
-
-=item *
-
-C<IPC::Cmd> has been upgraded from 0.64 to 0.66
-
-Resolves an issue with splitting Win32 command lines
-and documentation enhancements.
-
-=item *
-
-C<Memoize> has been upgraded from version 1.01_03 to 1.02.
+L<CPAN::Meta::YAML> 0.002 has been added as a dual-life module.  It supports a
+subset of YAML sufficient for reading and writing META.yml and MYMETA.yml files
+included with CPAN distributions or generated by the module installation
+toolchain. It should not be used for any other general YAML parsing or
+generation task.
 
 =item *
 
-C<MIME::Base64> has been upgraded from 3.10 to 3.13
+L<Perl::OSType> 1.002 has been added as a dual-life module.  It maps Perl
+operating system names (e.g. 'dragonfly' or 'MSWin32') to more generic types
+with standardized names (e.g.  "Unix" or "Windows").  It has been refactored
+out of Module::Build and ExtUtils::CBuilder and consolidates such mappings into
+a single location for easier maintenance.
 
-Now provides encode_base64url and decode_base64url functions to process
-the base64 scheme for "URL applications".
-
-=item *
-
-C<overload> has been upgraded from 1.11 to 1.12.
-
-=item *
-
-C<PerlIO::scalar> has been upgraded from 0.10 to 0.11.
-
-A C<read> after a C<seek> beyond the end of the string no longer thinks it
-has data to read
-L<[perl #78716]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=78716>.
+=back
 
-=item *
+=head2 Updated Modules and Pragmata
 
-C<re> has been upgraded from 0.14 to 0.15.
+=over 4
 
 =item *
 
-C<Socket> has been upgraded from 1.91 to 1.92.
-
-It has several new functions for handling IPv6 addresses.
+C<CGI> has been upgraded from version 3.50 to 3.51
 
 =item *
 
-C<Time::HiRes> has been upgraded from 1.9721 to 1.9721_01.
+C<Encode> has been upgraded from version 2.40 to 2.42
 
 =item *
 
-C<Unicode::Collate> has been upgraded from 0.67 to 0.68
+C<threads> has been upgraded from version 1.81_03 to 1.82
 
 =item *
 
-C<Unicode::UCD> has been upgraded from 0.29 to 0.30.
+C<threads::shared> has been upgraded from version 1.35 to 1.36
 
 =item *
 
-C<version> has been upgraded from 0.82 to 0.86.
+C<Time::Local> has been upgraded from version 1.1901_01 to 1.2000.
 
 =back
 
@@ -283,7 +186,7 @@ XXX Newly added diagnostic messages go here
 
 =item *
 
-There is a new "Closure prototype called" error.
+XXX
 
 =back
 
@@ -414,7 +317,12 @@ be noted as well.
 
 =item *
 
-XXX
+The opcode bodies for C<chop> and C<chomp> and for C<schop> and C<schomp> have
+been merged. The implementation functions C<Perl_do_chop()> and
+C<Perl_do_chomp()>, never part of the public API, have been merged and moved to
+a static function in F<pp.c>. This shrinks the perl binary slightly, and should
+not affect any code outside the core (unless it is relying on the order of side
+effects when C<chomp> is passed a I<list> of values).
 
 =back
 
@@ -430,58 +338,7 @@ L</Modules and Pragmata>.
 
 =item *
 
-C<BEGIN {require 5.12.0}> now behaves as documented, rather than behaving
-identically to C<use 5.12.0;>. Previously, C<require> in a C<BEGIN> block
-was erroneously executing the C<use feature ':5.12.0'> and
-C<use strict; use warnings;> behaviour, which only C<use> was documented to
-provide
-L<[perl #69050]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=69050>.
-
-=item *
-
-C<use 5.42>
-L<[perl #69050]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=69050>,
-C<use 6> and C<no 5> no longer leak memory.
-
-=item *
-
-C<eval "BEGIN{die}"> no longer leaks memory on non-threaded builds.
-
-=item *
-
-PerlIO no longer crashes when called recursively, e.g., from a signal
-handler. Now it just leaks memory
-L<[perl #75556]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=75556>.
-
-=item *
-
-Defining a constant with the same name as one of perl's special blocks
-(e.g., INIT) stopped working in 5.12.0, but has now been fixed
-L<[perl #78634]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=78634>.
-
-=item *
-
-A reference to a literal value used as a hash key (C<$hash{\"foo"}>) used
-to be stringified, even if the hash was tied
-L<[perl #79178]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=79178>.
-
-=item *
-
-A number of bugs with regular expression bracketed character classes
-have been fixed, mostly having to do with matching characters in the
-non-ASCII Latin-1 range.
-
-=item *
-
-A closure containing an C<if> statement followed by a constant or variable
-is no longer treated as a constant
-L<[perl #63540]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=63540>.
-
-=item *
-
-Calling a closure prototype (what is passed to an attribute handler for a
-closure) now results in a "Closure prototype called" error message
-L<[perl #68560]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=68560>.
+XXX
 
 =back