add new perldelta for possible 5.18.4

10 files changed, 321 insertions, 59 deletions

diff --git a/MANIFEST b/MANIFEST
index f329701cdb..5c6bf41737 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -4730,6 +4730,7 @@ pod/perl5163delta.pod		Perl changes in version 5.16.3
 pod/perl5180delta.pod		Perl changes in version 5.18.0
 pod/perl5181delta.pod		Perl changes in version 5.18.1
 pod/perl5182delta.pod		Perl changes in version 5.18.2
+pod/perl5183delta.pod		Perl changes in version 5.18.3
 pod/perl561delta.pod		Perl changes in version 5.6.1
 pod/perl56delta.pod		Perl changes in version 5.6
 pod/perl581delta.pod		Perl changes in version 5.8.1
diff --git a/Makefile.SH b/Makefile.SH
index 5eee4c6833..6be1ef8ea0 100755
--- a/Makefile.SH
+++ b/Makefile.SH
@@ -492,7 +492,7 @@ mini_obj = $(minindt_obj) $(MINIDTRACE_O)
 ndt_obj = $(obj0) $(obj1) $(obj2) $(obj3) $(ARCHOBJS)
 obj = $(ndt_obj) $(DTRACE_O)
 
-perltoc_pod_prereqs = extra.pods pod/perl5183delta.pod pod/perlapi.pod pod/perlintern.pod pod/perlmodlib.pod pod/perluniprops.pod
+perltoc_pod_prereqs = extra.pods pod/perl5184delta.pod pod/perlapi.pod pod/perlintern.pod pod/perlmodlib.pod pod/perluniprops.pod
 generated_pods = pod/perltoc.pod $(perltoc_pod_prereqs)
 generated_headers = uudmap.h bitcount.h mg_data.h
 
@@ -1068,9 +1068,9 @@ pod/perlintern.pod: $(MINIPERL_EXE) autodoc.pl embed.fnc
 pod/perlmodlib.pod: $(MINIPERL_EXE) pod/perlmodlib.PL MANIFEST
 	$(MINIPERL) $(Icwd) pod/perlmodlib.PL -q
 
-pod/perl5183delta.pod: pod/perldelta.pod
-	$(RMS) pod/perl5183delta.pod
-	$(LNS) perldelta.pod pod/perl5183delta.pod
+pod/perl5184delta.pod: pod/perldelta.pod
+	$(RMS) pod/perl5184delta.pod
+	$(LNS) perldelta.pod pod/perl5184delta.pod
 
 extra.pods: $(MINIPERL_EXE)
 	-@test ! -f extra.pods || rm -f `cat extra.pods`
diff --git a/pod/.gitignore b/pod/.gitignore
index 5102663025..fd850682d1 100644
--- a/pod/.gitignore
+++ b/pod/.gitignore
@@ -59,7 +59,7 @@
 /roffitall
 
 # generated
-/perl5183delta.pod
+/perl5184delta.pod
 /perlapi.pod
 /perlintern.pod
 *.html
diff --git a/pod/perl.pod b/pod/perl.pod
index b79169ee38..db75371894 100644
--- a/pod/perl.pod
+++ b/pod/perl.pod
@@ -179,6 +179,7 @@ aux a2p c2ph h2ph h2xs perlbug pl2pm pod2html pod2man s2p splain xsubpp
 
     perlhist		Perl history records
     perldelta		Perl changes since previous version
+    perl5183delta	Perl changes in version 5.18.3
     perl5182delta	Perl changes in version 5.18.2
     perl5181delta	Perl changes in version 5.18.1
     perl5180delta	Perl changes in version 5.18.0
diff --git a/pod/perl5183delta.pod b/pod/perl5183delta.pod
new file mode 120000
index 0000000000..bb639d3f2b
--- /dev/null
+++ b/pod/perl5183delta.pod
@@ -0,0 +1 @@
+perldelta.pod
\ No newline at end of file
diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index 83e032de6e..7df7d74fc9 100644
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -2,118 +2,373 @@
 
 =head1 NAME
 
-perldelta - what is new for perl v5.18.3
+[ 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 v5.18.4
 
 =head1 DESCRIPTION
 
-This document describes differences between the 5.18.2 release and the 5.18.3
+This document describes differences between the 5.18.3 release and the 5.18.4
 release.
 
-If you are upgrading from an earlier release such as 5.18.1, first read
-L<perl5182delta>, which describes differences between 5.18.1 and 5.18.2.
+If you are upgrading from an earlier release such as 5.18.2, first read
+L<perl5183delta>, which describes differences between 5.18.2 and 5.18.3.
+
+=head1 Notice
+
+XXX Any important notices here
+
+=head1 Core Enhancements
+
+XXX New core language features go here.  Summarize user-visible core language
+enhancements.  Particularly prominent performance optimisations could go
+here, but most should go in the L</Performance Enhancements> section.
+
+[ List each enhancement as a =head2 entry ]
+
+=head1 Security
+
+XXX Any security-related notices go here.  In particular, any security
+vulnerabilities closed should be noted here rather than in the
+L</Selected Bug Fixes> section.
+
+[ List each security issue as a =head2 entry ]
+
+=head1 Incompatible Changes
+
+XXX For a release on a stable branch, this section aspires to be:
+
+    There are no changes intentionally incompatible with 5.XXX.XXX
+    If any exist, they are bugs, and we request that you submit a
+    report.  See L</Reporting Bugs> below.
+
+[ List each incompatible change as a =head2 entry ]
+
+=head1 Deprecations
+
+XXX Any deprecated features, syntax, modules etc. should be listed here.
+
+=head2 Module removals
+
+XXX Remove this section if inapplicable.
+
+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 XXX
+
+XXX Note that deprecated modules should be listed here even if they are listed
+as an updated module in the L</Modules and Pragmata> section.
+
+=back
+
+[ List each other deprecation as a =head2 entry ]
+
+=head1 Performance Enhancements
+
+XXX Changes which enhance performance without changing behaviour go here.
+There may well be none in a stable release.
+
+[ List each enhancement as a =item entry ]
+
+=over 4
+
+=item *
+
+XXX
+
+=back
 
 =head1 Modules and Pragmata
 
-=head2 Updated 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>, which prints stub
+entries to STDOUT.  Results can be pasted in place of the '=head2' entries
+below.  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.
+
+[ Within each section, list entries as a =item entry ]
+
+=head2 New Modules and Pragmata
 
 =over 4
 
 =item *
 
-L<Digest::SHA> has been upgraded from 5.84_01 to 5.84_02.
+XXX
+
+=back
+
+=head2 Updated Modules and Pragmata
+
+=over 4
 
 =item *
 
-L<perl5db.pl> has been upgraded from version 1.39_10 to 1.39_11.
+L<XXX> has been upgraded from version A.xx to B.yy.
+
+=back
+
+=head2 Removed Modules and Pragmata
+
+=over 4
+
+=item *
 
-This fixes a crash in tab completion, where available. [perl #120827]  Also,
-filehandle information is properly reset after a pager is run. [perl #121456]
+XXX
 
 =back
 
-=head1 Platform Support
+=head1 Documentation
 
-=head2 Platform-Specific Notes
+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
+
+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.
+
+=head3 L<XXX>
 
 =over 4
 
-=item Win32
+=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 *
 
-Introduced by
-L<perl #113536|https://rt.perl.org/Public/Bug/Display.html?id=113536>, a memory
-leak on every call to C<system> and backticks (C< `` >), on most Win32 Perls
-starting from 5.18.0 has been fixed.  The memory leak only occurred if you
-enabled psuedo-fork in your build of Win32 Perl, and were running that build on
-Server 2003 R2 or newer OS.  The leak does not appear on WinXP SP3.
-[L<perl #121676|https://rt.perl.org/Public/Bug/Display.html?id=121676>]
+XXX L<message|perldiag/"message">
 
 =back
 
+=head3 New Warnings
+
+=over 4
+
+=item *
+
+XXX L<message|perldiag/"message">
+
 =back
 
-=head1 Selected Bug Fixes
+=head2 Changes to Existing Diagnostics
+
+XXX Changes (i.e. rewording) of diagnostic messages go here
 
 =over 4
 
 =item *
 
-The debugger now properly resets filehandles as needed. [perl #121456]
+XXX Describe change here
+
+=back
+
+=head1 Utility Changes
+
+XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here.
+Most of these are built within the directories F<utils> and F<x2p>.
+
+[ List utility changes as a =head3 entry for each utility and =item
+entries for each change
+Use L<XXX> with program names to get proper documentation linking. ]
+
+=head3 L<XXX>
+
+=over 4
 
 =item *
 
-A segfault in Digest::SHA has been addressed.  [perl #121421]
+XXX
+
+=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 *
 
-perl can again be built with USE_64_BIT_INT, with Visual C 2003, 32 bit.
-[perl #120925]
+XXX
+
+=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 *
 
-A leading { (brace) in formats is properly parsed again. [perl #119973]
+XXX
+
+=back
+
+=head1 Platform Support
+
+XXX Any changes to platform support should be listed in the sections below.
+
+[ Within the sections, list each platform as a =item entry with specific
+changes as paragraphs below it. ]
+
+=head2 New Platforms
+
+XXX List any platforms that this version of perl compiles on, that previous
+versions did not.  These will either be enabled by new files in the F<hints/>
+directories, or new subdirectories and F<README> files at the top level of the
+source tree.
+
+=over 4
+
+=item XXX-some-platform
+
+XXX
+
+=back
+
+=head2 Discontinued Platforms
+
+XXX List any platforms that this version of perl no longer compiles on.
+
+=over 4
+
+=item XXX-some-platform
+
+XXX
+
+=back
+
+=head2 Platform-Specific Notes
+
+XXX List any changes for specific platforms.  This could include configuration
+and compilation changes or changes in portability/compatibility.  However,
+changes within modules for platforms should generally be listed in the
+L</Modules and Pragmata> section.
+
+=over 4
+
+=item XXX-some-platform
+
+XXX
+
+=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 *
 
-Copy the values used to perturb hash iteration when cloning an
-interpreter.  This was fairly harmless but caused C<valgrind> to
-complain. [perl #121336]
+XXX
+
+=back
+
+=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 *
 
-In Perl v5.18 C<undef *_; goto &sub> and C<local *_; goto &sub> started
-crashing.  This has been fixed. [perl #119949]
+XXX
 
 =back
 
-=head1 Acknowledgements
+=head1 Known Problems
 
-Perl 5.18.3 represents approximately 9 months of development since Perl 5.18.2
-and contains approximately 2,000 lines of changes across 53 files from 13
-authors.
+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.
 
-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 5.18.3:
+[ List each fix as a =item entry ]
 
-Daniel Dragan, David Mitchell, Doug Bell, Father Chrysostomos, Hiroo Hayashi,
-James E Keenan, Karl Williamson, Mark Shelor, Ricardo Signes, Shlomi Fish,
-Smylers, Steve Hay, Tony Cook.
+=over 4
+
+=item *
 
-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
+
+=back
+
+=head1 Obituary
+
+XXX If any significant core contributor has died, we've added a short obituary
+here.
+
+=head1 Acknowledgements
 
-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.
+XXX Generate this with:
 
-For a more complete list of all of Perl's historical contributors, please see
-the F<AUTHORS> file in the Perl source distribution.
+  perl Porting/acknowledgements.pl v5.18.3..HEAD
 
 =head1 Reporting Bugs
 
diff --git a/vms/descrip_mms.template b/vms/descrip_mms.template
index ac177af3a7..d8555a476c 100644
--- a/vms/descrip_mms.template
+++ b/vms/descrip_mms.template
@@ -326,7 +326,7 @@ x2p : [.x2p]$(DBG)a2p$(E) [.x2p]s2p.com [.x2p]find2perl.com
 extra.pods : miniperl
 	@ @extra_pods.com
 
-PERLDELTA_CURRENT = [.pod]perl5183delta.pod
+PERLDELTA_CURRENT = [.pod]perl5184delta.pod
 
 $(PERLDELTA_CURRENT) : [.pod]perldelta.pod
 	Copy/NoConfirm/Log $(MMS$SOURCE) $(PERLDELTA_CURRENT)
diff --git a/win32/Makefile b/win32/Makefile
index 72dfaba537..0ede24bd31 100644
--- a/win32/Makefile
+++ b/win32/Makefile
@@ -1158,7 +1158,7 @@ utils: $(PERLEXE) $(X2P)
 	copy ..\README.tw       ..\pod\perltw.pod
 	copy ..\README.vos      ..\pod\perlvos.pod
 	copy ..\README.win32    ..\pod\perlwin32.pod
-	copy ..\pod\perldelta.pod ..\pod\perl5183delta.pod
+	copy ..\pod\perldelta.pod ..\pod\perl5184delta.pod
 	cd ..\win32
 	$(PERLEXE) $(PL2BAT) $(UTILS)
 	$(PERLEXE) $(ICWD) ..\autodoc.pl ..
@@ -1251,7 +1251,7 @@ distclean: realclean
 	-if exist $(LIBDIR)\XS rmdir /s /q $(LIBDIR)\XS
 	-if exist $(LIBDIR)\Win32API rmdir /s /q $(LIBDIR)\Win32API
 	-cd $(PODDIR) && del /f *.html *.bat roffitall \
-	    perl5183delta.pod perlaix.pod perlamiga.pod perlapi.pod \
+	    perl5184delta.pod perlaix.pod perlamiga.pod perlapi.pod \
 	    perlbs2000.pod perlce.pod perlcn.pod perlcygwin.pod \
 	    perldgux.pod perldos.pod perlfreebsd.pod perlhaiku.pod \
 	    perlhpux.pod perlhurd.pod perlintern.pod perlirix.pod \
diff --git a/win32/makefile.mk b/win32/makefile.mk
index 7baf5139cd..5f3f88f321 100644
--- a/win32/makefile.mk
+++ b/win32/makefile.mk
@@ -1338,7 +1338,7 @@ utils: $(PERLEXE) $(X2P)
 	copy ..\README.tw       ..\pod\perltw.pod
 	copy ..\README.vos      ..\pod\perlvos.pod
 	copy ..\README.win32    ..\pod\perlwin32.pod
-	copy ..\pod\perldelta.pod ..\pod\perl5183delta.pod
+	copy ..\pod\perldelta.pod ..\pod\perl5184delta.pod
 	$(PERLEXE) $(PL2BAT) $(UTILS)
 	$(PERLEXE) $(ICWD) ..\autodoc.pl ..
 	$(PERLEXE) $(ICWD) ..\pod\perlmodlib.pl -q
@@ -1430,7 +1430,7 @@ distclean: realclean
 	-if exist $(LIBDIR)\XS rmdir /s /q $(LIBDIR)\XS
 	-if exist $(LIBDIR)\Win32API rmdir /s /q $(LIBDIR)\Win32API
 	-cd $(PODDIR) && del /f *.html *.bat roffitall \
-	    perl5183delta.pod perlaix.pod perlamiga.pod perlapi.pod \
+	    perl5184delta.pod perlaix.pod perlamiga.pod perlapi.pod \
 	    perlbs2000.pod perlce.pod perlcn.pod perlcygwin.pod \
 	    perldgux.pod perldos.pod perlfreebsd.pod perlhaiku.pod \
 	    perlhpux.pod perlhurd.pod perlintern.pod perlirix.pod \
diff --git a/win32/pod.mak b/win32/pod.mak
index 49ee5f160c..8a050b1adc 100644
--- a/win32/pod.mak
+++ b/win32/pod.mak
@@ -37,6 +37,7 @@ POD = perl.pod	\
 	perl5181delta.pod	\
 	perl5182delta.pod	\
 	perl5183delta.pod	\
+	perl5184delta.pod	\
 	perl561delta.pod	\
 	perl56delta.pod	\
 	perl581delta.pod	\
@@ -166,6 +167,7 @@ MAN = perl.man	\
 	perl5181delta.man	\
 	perl5182delta.man	\
 	perl5183delta.man	\
+	perl5184delta.man	\
 	perl561delta.man	\
 	perl56delta.man	\
 	perl581delta.man	\
@@ -295,6 +297,7 @@ HTML = perl.html	\
 	perl5181delta.html	\
 	perl5182delta.html	\
 	perl5183delta.html	\
+	perl5184delta.html	\
 	perl561delta.html	\
 	perl56delta.html	\
 	perl581delta.html	\
@@ -424,6 +427,7 @@ TEX = perl.tex	\
 	perl5181delta.tex	\
 	perl5182delta.tex	\
 	perl5183delta.tex	\
+	perl5184delta.tex	\
 	perl561delta.tex	\
 	perl56delta.tex	\
 	perl581delta.tex	\