Bump perl version to 5.27.4, including Module::CoreList bits

25 files changed, 168 insertions, 138 deletions

diff --git a/Cross/config.sh-arm-linux b/Cross/config.sh-arm-linux
index 3be1ebab70..1477fb7405 100644
--- a/Cross/config.sh-arm-linux
+++ b/Cross/config.sh-arm-linux
@@ -32,12 +32,12 @@ alignbytes='4'
 ansi2knr=''
 aphostname='/bin/hostname'
 api_revision='5'
-api_subversion='3'
+api_subversion='4'
 api_version='27'
-api_versionstring='5.27.3'
+api_versionstring='5.27.4'
 ar='ar'
-archlib='/usr/lib/perl5/5.27.3/armv4l-linux'
-archlibexp='/usr/lib/perl5/5.27.3/armv4l-linux'
+archlib='/usr/lib/perl5/5.27.4/armv4l-linux'
+archlibexp='/usr/lib/perl5/5.27.4/armv4l-linux'
 archname64=''
 archname='armv4l-linux'
 archobjs=''
@@ -56,7 +56,7 @@ castflags='0'
 cat='cat'
 cc='cc'
 cccdlflags='-fpic'
-ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5/5.27.3/armv4l-linux/CORE'
+ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5/5.27.4/armv4l-linux/CORE'
 ccflags='-fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
 ccflags_uselargefiles='-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
 ccname='arm-linux-gcc'
@@ -826,7 +826,7 @@ inc_version_list=' '
 inc_version_list_init='0'
 incpath=''
 inews=''
-installarchlib='./install_me_here/usr/lib/perl5/5.27.3/armv4l-linux'
+installarchlib='./install_me_here/usr/lib/perl5/5.27.4/armv4l-linux'
 installbin='./install_me_here/usr/bin'
 installhtml1dir=''
 installhtml3dir=''
@@ -834,13 +834,13 @@ installman1dir='./install_me_here/usr/share/man/man1'
 installman3dir='./install_me_here/usr/share/man/man3'
 installprefix='./install_me_here/usr'
 installprefixexp='./install_me_here/usr'
-installprivlib='./install_me_here/usr/lib/perl5/5.27.3'
+installprivlib='./install_me_here/usr/lib/perl5/5.27.4'
 installscript='./install_me_here/usr/bin'
-installsitearch='./install_me_here/usr/lib/perl5/site_perl/5.27.3/armv4l-linux'
+installsitearch='./install_me_here/usr/lib/perl5/site_perl/5.27.4/armv4l-linux'
 installsitebin='./install_me_here/usr/bin'
 installsitehtml1dir=''
 installsitehtml3dir=''
-installsitelib='./install_me_here/usr/lib/perl5/site_perl/5.27.3'
+installsitelib='./install_me_here/usr/lib/perl5/site_perl/5.27.4'
 installsiteman1dir='./install_me_here/usr/share/man/man1'
 installsiteman3dir='./install_me_here/usr/share/man/man3'
 installsitescript='./install_me_here/usr/bin'
@@ -974,8 +974,8 @@ pmake=''
 pr=''
 prefix='/usr'
 prefixexp='/usr'
-privlib='/usr/lib/perl5/5.27.3'
-privlibexp='/usr/lib/perl5/5.27.3'
+privlib='/usr/lib/perl5/5.27.4'
+privlibexp='/usr/lib/perl5/5.27.4'
 procselfexe='"/proc/self/exe"'
 prototype='define'
 ptrsize='4'
@@ -1040,17 +1040,17 @@ sig_num='0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
 sig_num_init='0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 6, 17, 29, 31, 0'
 sig_size='68'
 signal_t='void'
-sitearch='/usr/lib/perl5/site_perl/5.27.3/armv4l-linux'
-sitearchexp='/usr/lib/perl5/site_perl/5.27.3/armv4l-linux'
+sitearch='/usr/lib/perl5/site_perl/5.27.4/armv4l-linux'
+sitearchexp='/usr/lib/perl5/site_perl/5.27.4/armv4l-linux'
 sitebin='/usr/bin'
 sitebinexp='/usr/bin'
 sitehtml1dir=''
 sitehtml1direxp=''
 sitehtml3dir=''
 sitehtml3direxp=''
-sitelib='/usr/lib/perl5/site_perl/5.27.3'
+sitelib='/usr/lib/perl5/site_perl/5.27.4'
 sitelib_stem='/usr/lib/perl5/site_perl'
-sitelibexp='/usr/lib/perl5/site_perl/5.27.3'
+sitelibexp='/usr/lib/perl5/site_perl/5.27.4'
 siteman1dir='/usr/share/man/man1'
 siteman1direxp='/usr/share/man/man1'
 siteman3dir='/usr/share/man/man3'
@@ -1089,7 +1089,7 @@ stdio_stream_array=''
 strerror_r_proto='0'
 strings='/usr/include/string.h'
 submit=''
-subversion='3'
+subversion='4'
 sysman='/usr/share/man/man1'
 tail=''
 tar=''
@@ -1181,8 +1181,8 @@ vendorprefix=''
 vendorprefixexp=''
 vendorscript=''
 vendorscriptexp=''
-version='5.27.3'
-version_patchlevel_string='version 27 subversion 3'
+version='5.27.4'
+version_patchlevel_string='version 27 subversion 4'
 versiononly='undef'
 vi=''
 xlibpth='/usr/lib/386 /lib/386'
@@ -1196,9 +1196,9 @@ config_args=''
 config_argc=0
 PERL_REVISION=5
 PERL_VERSION=27
-PERL_SUBVERSION=3
+PERL_SUBVERSION=4
 PERL_API_REVISION=5
 PERL_API_VERSION=27
-PERL_API_SUBVERSION=3
+PERL_API_SUBVERSION=4
 PERL_PATCHLEVEL=
 PERL_CONFIG_SH=true
diff --git a/Cross/config.sh-arm-linux-n770 b/Cross/config.sh-arm-linux-n770
index b7264b9b8a..559ad88244 100644
--- a/Cross/config.sh-arm-linux-n770
+++ b/Cross/config.sh-arm-linux-n770
@@ -32,12 +32,12 @@ alignbytes='4'
 ansi2knr=''
 aphostname='/bin/hostname'
 api_revision='5'
-api_subversion='3'
+api_subversion='4'
 api_version='27'
-api_versionstring='5.27.3'
+api_versionstring='5.27.4'
 ar='ar'
-archlib='/usr/lib/perl5/5.27.3/armv4l-linux'
-archlibexp='/usr/lib/perl5/5.27.3/armv4l-linux'
+archlib='/usr/lib/perl5/5.27.4/armv4l-linux'
+archlibexp='/usr/lib/perl5/5.27.4/armv4l-linux'
 archname64=''
 archname='armv4l-linux'
 archobjs=''
@@ -55,7 +55,7 @@ castflags='0'
 cat='cat'
 cc='arm-none-linux-gnueabi-gcc'
 cccdlflags='-fpic'
-ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5/5.27.3/armv4l-linux/CORE'
+ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5/5.27.4/armv4l-linux/CORE'
 ccflags='-fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
 ccflags_uselargefiles='-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
 ccname='arm-linux-gcc'
@@ -699,7 +699,7 @@ inc_version_list=' '
 inc_version_list_init='0'
 incpath=''
 inews=''
-installarchlib='./install_me_here/usr/lib/perl5/5.27.3/armv4l-linux'
+installarchlib='./install_me_here/usr/lib/perl5/5.27.4/armv4l-linux'
 installbin='./install_me_here/usr/bin'
 installhtml1dir=''
 installhtml3dir=''
@@ -707,13 +707,13 @@ installman1dir='./install_me_here/usr/share/man/man1'
 installman3dir='./install_me_here/usr/share/man/man3'
 installprefix='./install_me_here/usr'
 installprefixexp='./install_me_here/usr'
-installprivlib='./install_me_here/usr/lib/perl5/5.27.3'
+installprivlib='./install_me_here/usr/lib/perl5/5.27.4'
 installscript='./install_me_here/usr/bin'
-installsitearch='./install_me_here/usr/lib/perl5/site_perl/5.27.3/armv4l-linux'
+installsitearch='./install_me_here/usr/lib/perl5/site_perl/5.27.4/armv4l-linux'
 installsitebin='./install_me_here/usr/bin'
 installsitehtml1dir=''
 installsitehtml3dir=''
-installsitelib='./install_me_here/usr/lib/perl5/site_perl/5.27.3'
+installsitelib='./install_me_here/usr/lib/perl5/site_perl/5.27.4'
 installsiteman1dir='./install_me_here/usr/share/man/man1'
 installsiteman3dir='./install_me_here/usr/share/man/man3'
 installsitescript='./install_me_here/usr/bin'
@@ -841,8 +841,8 @@ pmake=''
 pr=''
 prefix='/usr'
 prefixexp='/usr'
-privlib='/usr/lib/perl5/5.27.3'
-privlibexp='/usr/lib/perl5/5.27.3'
+privlib='/usr/lib/perl5/5.27.4'
+privlibexp='/usr/lib/perl5/5.27.4'
 procselfexe='"/proc/self/exe"'
 prototype='define'
 ptrsize='4'
@@ -903,17 +903,17 @@ sig_num='0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
 sig_num_init='0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 6, 17, 29, 31, 0'
 sig_size='68'
 signal_t='void'
-sitearch='/usr/lib/perl5/site_perl/5.27.3/armv4l-linux'
-sitearchexp='/usr/lib/perl5/site_perl/5.27.3/armv4l-linux'
+sitearch='/usr/lib/perl5/site_perl/5.27.4/armv4l-linux'
+sitearchexp='/usr/lib/perl5/site_perl/5.27.4/armv4l-linux'
 sitebin='/usr/bin'
 sitebinexp='/usr/bin'
 sitehtml1dir=''
 sitehtml1direxp=''
 sitehtml3dir=''
 sitehtml3direxp=''
-sitelib='/usr/lib/perl5/site_perl/5.27.3'
+sitelib='/usr/lib/perl5/site_perl/5.27.4'
 sitelib_stem='/usr/lib/perl5/site_perl'
-sitelibexp='/usr/lib/perl5/site_perl/5.27.3'
+sitelibexp='/usr/lib/perl5/site_perl/5.27.4'
 siteman1dir='/usr/share/man/man1'
 siteman1direxp='/usr/share/man/man1'
 siteman3dir='/usr/share/man/man3'
@@ -950,7 +950,7 @@ stdio_stream_array=''
 strerror_r_proto='0'
 strings='/usr/include/string.h'
 submit=''
-subversion='3'
+subversion='4'
 sysman='/usr/share/man/man1'
 tail=''
 tar=''
@@ -1035,8 +1035,8 @@ vendorprefix=''
 vendorprefixexp=''
 vendorscript=''
 vendorscriptexp=''
-version='5.27.3'
-version_patchlevel_string='version 27 subversion 3'
+version='5.27.4'
+version_patchlevel_string='version 27 subversion 4'
 versiononly='undef'
 vi=''
 xlibpth='/usr/lib/386 /lib/386'
@@ -1050,9 +1050,9 @@ config_args=''
 config_argc=0
 PERL_REVISION=5
 PERL_VERSION=27
-PERL_SUBVERSION=3
+PERL_SUBVERSION=4
 PERL_API_REVISION=5
 PERL_API_VERSION=27
-PERL_API_SUBVERSION=3
+PERL_API_SUBVERSION=4
 PERL_PATCHLEVEL=
 PERL_CONFIG_SH=true
diff --git a/INSTALL b/INSTALL
index 1b9c000240..5a88ded723 100644
--- a/INSTALL
+++ b/INSTALL
@@ -609,7 +609,7 @@ The directories set up by Configure fall into three broad categories.
 
 =item Directories for the perl distribution
 
-By default, Configure will use the following directories for 5.27.3.
+By default, Configure will use the following directories for 5.27.4.
 $version is the full perl version number, including subversion, e.g.
 5.12.3, and $archname is a string like sun4-sunos,
 determined by Configure.  The full definitions of all Configure
@@ -2472,7 +2472,7 @@ http://www.chiark.greenend.org.uk/~sgtatham/bugs.html
 
 =head1 Coexistence with earlier versions of perl 5
 
-Perl 5.27.3 is not binary compatible with earlier versions of Perl.
+Perl 5.27.4 is not binary compatible with earlier versions of Perl.
 In other words, you will have to recompile your XS modules.
 
 In general, you can usually safely upgrade from one version of Perl
@@ -2547,9 +2547,9 @@ won't interfere with another version.  (The defaults guarantee this for
 libraries after 5.6.0, but not for executables. TODO?)  One convenient
 way to do this is by using a separate prefix for each version, such as
 
-	sh Configure -Dprefix=/opt/perl5.27.3
+	sh Configure -Dprefix=/opt/perl5.27.4
 
-and adding /opt/perl5.27.3/bin to the shell PATH variable.  Such users
+and adding /opt/perl5.27.4/bin to the shell PATH variable.  Such users
 may also wish to add a symbolic link /usr/local/bin/perl so that
 scripts can still start with #!/usr/local/bin/perl.
 
@@ -2562,13 +2562,13 @@ seriously consider using a separate directory, since development
 subversions may not have all the compatibility wrinkles ironed out
 yet.
 
-=head2 Upgrading from 5.27.2 or earlier
+=head2 Upgrading from 5.27.3 or earlier
 
-B<Perl 5.27.3 may not be binary compatible with Perl 5.27.2 or
+B<Perl 5.27.4 may not be binary compatible with Perl 5.27.3 or
 earlier Perl releases.>  Perl modules having binary parts
 (meaning that a C compiler is used) will have to be recompiled to be
-used with 5.27.3.  If you find you do need to rebuild an extension with
-5.27.3, you may safely do so without disturbing the older
+used with 5.27.4.  If you find you do need to rebuild an extension with
+5.27.4, you may safely do so without disturbing the older
 installations.  (See L<"Coexistence with earlier versions of perl 5">
 above.)
 
@@ -2601,15 +2601,15 @@ Firstly, the bare minimum to run this script
      print("$f\n");
   }
 
-in Linux with perl-5.27.3 is as follows (under $Config{prefix}):
+in Linux with perl-5.27.4 is as follows (under $Config{prefix}):
 
   ./bin/perl
-  ./lib/perl5/5.27.3/strict.pm
-  ./lib/perl5/5.27.3/warnings.pm
-  ./lib/perl5/5.27.3/i686-linux/File/Glob.pm
-  ./lib/perl5/5.27.3/feature.pm
-  ./lib/perl5/5.27.3/XSLoader.pm
-  ./lib/perl5/5.27.3/i686-linux/auto/File/Glob/Glob.so
+  ./lib/perl5/5.27.4/strict.pm
+  ./lib/perl5/5.27.4/warnings.pm
+  ./lib/perl5/5.27.4/i686-linux/File/Glob.pm
+  ./lib/perl5/5.27.4/feature.pm
+  ./lib/perl5/5.27.4/XSLoader.pm
+  ./lib/perl5/5.27.4/i686-linux/auto/File/Glob/Glob.so
 
 Secondly, for perl-5.10.1, the Debian perl-base package contains 591
 files, (of which 510 are for lib/unicore) totaling about 3.5MB in its
diff --git a/META.json b/META.json
index 54162c6cf1..d6d9388940 100644
--- a/META.json
+++ b/META.json
@@ -126,6 +126,6 @@
          "url" : "http://perl5.git.perl.org/"
       }
    },
-   "version" : "5.027003",
+   "version" : "5.027004",
    "x_serialization_backend" : "JSON::PP version 2.94"
 }
diff --git a/META.yml b/META.yml
index 7824f853cb..6788ffbd16 100644
--- a/META.yml
+++ b/META.yml
@@ -113,5 +113,5 @@ resources:
   homepage: http://www.perl.org/
   license: http://dev.perl.org/licenses/
   repository: http://perl5.git.perl.org/
-version: '5.027003'
+version: '5.027004'
 x_serialization_backend: 'CPAN::Meta::YAML version 0.018'
diff --git a/NetWare/Makefile b/NetWare/Makefile
index ca98d98359..75331c51db 100644
--- a/NetWare/Makefile
+++ b/NetWare/Makefile
@@ -86,7 +86,7 @@ NLM_VERSION    = 3,20,0
 
 
 # Here comes the CW tools - TO BE FILLED TO BUILD WITH CW -
-MODULE_DESC     = "Perl 5.27.3 for NetWare"
+MODULE_DESC     = "Perl 5.27.4 for NetWare"
 CCTYPE          = CodeWarrior
 C_COMPILER		= mwccnlm -c
 CPP_COMPILER	= mwccnlm
@@ -462,7 +462,7 @@ INST_NW_TOP2 = $(INST_NW_DRV)\perl
 # versioned installation can be obtained by setting INST_TOP above to a
 # path that includes an arbitrary version string.
 #
-INST_VER	= \5.27.3
+INST_VER	= \5.27.4
 
 #
 # Comment this out if you DON'T want your perl installation to have
diff --git a/NetWare/config_H.wc b/NetWare/config_H.wc
index c50ff3bf9b..a24172c914 100644
--- a/NetWare/config_H.wc
+++ b/NetWare/config_H.wc
@@ -1042,7 +1042,7 @@
  *	This symbol contains the ~name expanded version of ARCHLIB, to be used
  *	in programs that are not prepared to deal with ~ expansion at run-time.
  */
-#define ARCHLIB "c:\\perl\\5.27.3\\lib\\NetWare-x86-multi-thread"		/**/
+#define ARCHLIB "c:\\perl\\5.27.4\\lib\\NetWare-x86-multi-thread"		/**/
 /*#define ARCHLIB_EXP ""	/**/
 
 /* ARCHNAME:
@@ -1073,8 +1073,8 @@
  *	This symbol is the filename expanded version of the BIN symbol, for
  *	programs that do not want to deal with that at run-time.
  */
-#define BIN "c:\\perl\\5.27.3\\bin\\NetWare-x86-multi-thread"	/**/
-#define BIN_EXP "c:\\perl\\5.27.3\\bin\\NetWare-x86-multi-thread"	/**/
+#define BIN "c:\\perl\\5.27.4\\bin\\NetWare-x86-multi-thread"	/**/
+#define BIN_EXP "c:\\perl\\5.27.4\\bin\\NetWare-x86-multi-thread"	/**/
 
 /* BYTEORDER:
  *	This symbol holds the hexadecimal constant defined in byteorder,
@@ -3088,7 +3088,7 @@
  *	This symbol contains the ~name expanded version of SITEARCH, to be used
  *	in programs that are not prepared to deal with ~ expansion at run-time.
  */
-#define SITEARCH "c:\\perl\\site\\5.27.3\\lib\\NetWare-x86-multi-thread"		/**/
+#define SITEARCH "c:\\perl\\site\\5.27.4\\lib\\NetWare-x86-multi-thread"		/**/
 /*#define SITEARCH_EXP ""	/**/
 
 /* SITELIB:
@@ -3111,7 +3111,7 @@
  *	removed.  The elements in inc_version_list (inc_version_list.U) can
  *	be tacked onto this variable to generate a list of directories to search.
  */
-#define SITELIB "c:\\perl\\site\\5.27.3\\lib"		/**/
+#define SITELIB "c:\\perl\\site\\5.27.4\\lib"		/**/
 /*#define SITELIB_EXP ""	/**/
 #define SITELIB_STEM ""		/**/
 
diff --git a/Porting/config.sh b/Porting/config.sh
index adc9b5e74f..52a3b5a8d2 100644
--- a/Porting/config.sh
+++ b/Porting/config.sh
@@ -39,12 +39,12 @@ alignbytes='8'
 ansi2knr=''
 aphostname='/bin/hostname'
 api_revision='5'
-api_subversion='3'
+api_subversion='4'
 api_version='27'
-api_versionstring='5.27.3'
+api_versionstring='5.27.4'
 ar='ar'
-archlib='/tmp/mblead/lib/perl5/5.27.3/darwin-2level'
-archlibexp='/tmp/mblead/lib/perl5/5.27.3/darwin-2level'
+archlib='/tmp/mblead/lib/perl5/5.27.4/darwin-2level'
+archlibexp='/tmp/mblead/lib/perl5/5.27.4/darwin-2level'
 archname64=''
 archname='darwin-2level'
 archobjs=''
@@ -846,7 +846,7 @@ incpath=''
 incpth='/usr/local/include /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.0/include /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include /usr/include /usr/local/include /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.0/include /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include /usr/include /usr/local/include /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.0/include /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include /usr/include'
 inews=''
 initialinstalllocation='/tmp/mblead/bin'
-installarchlib='/tmp/mblead/lib/perl5/5.27.3/darwin-2level'
+installarchlib='/tmp/mblead/lib/perl5/5.27.4/darwin-2level'
 installbin='/tmp/mblead/bin'
 installhtml1dir=''
 installhtml3dir=''
@@ -854,13 +854,13 @@ installman1dir='/tmp/mblead/man/man1'
 installman3dir='/tmp/mblead/man/man3'
 installprefix='/tmp/mblead'
 installprefixexp='/tmp/mblead'
-installprivlib='/tmp/mblead/lib/perl5/5.27.3'
+installprivlib='/tmp/mblead/lib/perl5/5.27.4'
 installscript='/tmp/mblead/bin'
-installsitearch='/tmp/mblead/lib/perl5/site_perl/5.27.3/darwin-2level'
+installsitearch='/tmp/mblead/lib/perl5/site_perl/5.27.4/darwin-2level'
 installsitebin='/tmp/mblead/bin'
 installsitehtml1dir=''
 installsitehtml3dir=''
-installsitelib='/tmp/mblead/lib/perl5/site_perl/5.27.3'
+installsitelib='/tmp/mblead/lib/perl5/site_perl/5.27.4'
 installsiteman1dir='/tmp/mblead/man/man1'
 installsiteman3dir='/tmp/mblead/man/man3'
 installsitescript='/tmp/mblead/bin'
@@ -985,7 +985,7 @@ perl_patchlevel=''
 perl_static_inline='static __inline__'
 perladmin='aaron@daybreak.nonet'
 perllibs='-lpthread -ldl -lm -lutil -lc'
-perlpath='/tmp/mblead/bin/perl5.27.3'
+perlpath='/tmp/mblead/bin/perl5.27.4'
 pg='pg'
 phostname='hostname'
 pidtype='pid_t'
@@ -994,8 +994,8 @@ pmake=''
 pr=''
 prefix='/tmp/mblead'
 prefixexp='/tmp/mblead'
-privlib='/tmp/mblead/lib/perl5/5.27.3'
-privlibexp='/tmp/mblead/lib/perl5/5.27.3'
+privlib='/tmp/mblead/lib/perl5/5.27.4'
+privlibexp='/tmp/mblead/lib/perl5/5.27.4'
 procselfexe=''
 prototype='define'
 ptrsize='8'
@@ -1061,17 +1061,17 @@ sig_num='0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
 sig_num_init='0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 6, 0'
 sig_size='33'
 signal_t='void'
-sitearch='/tmp/mblead/lib/perl5/site_perl/5.27.3/darwin-2level'
-sitearchexp='/tmp/mblead/lib/perl5/site_perl/5.27.3/darwin-2level'
+sitearch='/tmp/mblead/lib/perl5/site_perl/5.27.4/darwin-2level'
+sitearchexp='/tmp/mblead/lib/perl5/site_perl/5.27.4/darwin-2level'
 sitebin='/tmp/mblead/bin'
 sitebinexp='/tmp/mblead/bin'
 sitehtml1dir=''
 sitehtml1direxp=''
 sitehtml3dir=''
 sitehtml3direxp=''
-sitelib='/tmp/mblead/lib/perl5/site_perl/5.27.3'
+sitelib='/tmp/mblead/lib/perl5/site_perl/5.27.4'
 sitelib_stem='/tmp/mblead/lib/perl5/site_perl'
-sitelibexp='/tmp/mblead/lib/perl5/site_perl/5.27.3'
+sitelibexp='/tmp/mblead/lib/perl5/site_perl/5.27.4'
 siteman1dir='/tmp/mblead/man/man1'
 siteman1direxp='/tmp/mblead/man/man1'
 siteman3dir='/tmp/mblead/man/man3'
@@ -1097,7 +1097,7 @@ src='.'
 ssizetype='ssize_t'
 st_ino_sign='1'
 st_ino_size='8'
-startperl='#!/tmp/mblead/bin/perl5.27.3'
+startperl='#!/tmp/mblead/bin/perl5.27.4'
 startsh='#!/bin/sh'
 static_ext=' '
 stdchar='char'
@@ -1110,7 +1110,7 @@ stdio_stream_array=''
 strerror_r_proto='0'
 strings='/usr/include/string.h'
 submit=''
-subversion='3'
+subversion='4'
 sysman='/usr/share/man/man1'
 sysroot=''
 tail=''
@@ -1209,8 +1209,8 @@ vendorprefix=''
 vendorprefixexp=''
 vendorscript=''
 vendorscriptexp=''
-version='5.27.3'
-version_patchlevel_string='version 27 subversion 3'
+version='5.27.4'
+version_patchlevel_string='version 27 subversion 4'
 versiononly='define'
 vi=''
 xlibpth='/usr/lib/386 /lib/386'
@@ -1220,9 +1220,9 @@ zcat=''
 zip='zip'
 PERL_REVISION=5
 PERL_VERSION=27
-PERL_SUBVERSION=3
+PERL_SUBVERSION=4
 PERL_API_REVISION=5
 PERL_API_VERSION=27
-PERL_API_SUBVERSION=3
+PERL_API_SUBVERSION=4
 PERL_PATCHLEVEL=''
 PERL_CONFIG_SH=true
diff --git a/Porting/config_H b/Porting/config_H
index dc890571a2..667a7ed7d2 100644
--- a/Porting/config_H
+++ b/Porting/config_H
@@ -960,8 +960,8 @@
  *	This symbol contains the ~name expanded version of ARCHLIB, to be used
  *	in programs that are not prepared to deal with ~ expansion at run-time.
  */
-#define ARCHLIB "/pro/lib/perl5/5.27.3/i686-linux-64int-ld"		/**/
-#define ARCHLIB_EXP "/pro/lib/perl5/5.27.3/i686-linux-64int-ld"		/**/
+#define ARCHLIB "/pro/lib/perl5/5.27.4/i686-linux-64int-ld"		/**/
+#define ARCHLIB_EXP "/pro/lib/perl5/5.27.4/i686-linux-64int-ld"		/**/
 
 /* ARCHNAME:
  *	This symbol holds a string representing the architecture name.
@@ -2068,8 +2068,8 @@
  *	This symbol contains the ~name expanded version of PRIVLIB, to be used
  *	in programs that are not prepared to deal with ~ expansion at run-time.
  */
-#define PRIVLIB "/pro/lib/perl5/5.27.3"		/**/
-#define PRIVLIB_EXP "/pro/lib/perl5/5.27.3"		/**/
+#define PRIVLIB "/pro/lib/perl5/5.27.4"		/**/
+#define PRIVLIB_EXP "/pro/lib/perl5/5.27.4"		/**/
 
 /* PTRSIZE:
  *	This symbol contains the size of a pointer, so that the C preprocessor
@@ -2119,8 +2119,8 @@
  *	This symbol contains the ~name expanded version of SITEARCH, to be used
  *	in programs that are not prepared to deal with ~ expansion at run-time.
  */
-#define SITEARCH "/pro/lib/perl5/site_perl/5.27.3/i686-linux-64int-ld"		/**/
-#define SITEARCH_EXP "/pro/lib/perl5/site_perl/5.27.3/i686-linux-64int-ld"		/**/
+#define SITEARCH "/pro/lib/perl5/site_perl/5.27.4/i686-linux-64int-ld"		/**/
+#define SITEARCH_EXP "/pro/lib/perl5/site_perl/5.27.4/i686-linux-64int-ld"		/**/
 
 /* SITELIB:
  *	This symbol contains the name of the private library for this package.
@@ -2142,8 +2142,8 @@
  *	removed.  The elements in inc_version_list (inc_version_list.U) can
  *	be tacked onto this variable to generate a list of directories to search.
  */
-#define SITELIB "/pro/lib/perl5/site_perl/5.27.3"		/**/
-#define SITELIB_EXP "/pro/lib/perl5/site_perl/5.27.3"		/**/
+#define SITELIB "/pro/lib/perl5/site_perl/5.27.4"		/**/
+#define SITELIB_EXP "/pro/lib/perl5/site_perl/5.27.4"		/**/
 #define SITELIB_STEM "/pro/lib/perl5/site_perl"		/**/
 
 /* SSize_t:
@@ -4282,7 +4282,7 @@
  *	script to make sure (one hopes) that it runs with perl and not
  *	some shell.
  */
-#define STARTPERL "#!/pro/bin/perl5.27.3"		/**/
+#define STARTPERL "#!/pro/bin/perl5.27.4"		/**/
 
 /* HAS_STDIO_STREAM_ARRAY:
  *	This symbol, if defined, tells that there is an array
diff --git a/README.haiku b/README.haiku
index 0f20ff4cae..6e10026f75 100644
--- a/README.haiku
+++ b/README.haiku
@@ -22,9 +22,9 @@ The build procedure is completely standard:
 Make perl executable and create a symlink for libperl:
 
   chmod a+x /boot/common/bin/perl
-  cd /boot/common/lib; ln -s perl5/5.27.3/BePC-haiku/CORE/libperl.so .
+  cd /boot/common/lib; ln -s perl5/5.27.4/BePC-haiku/CORE/libperl.so .
 
-Replace C<5.27.3> with your respective version of Perl.
+Replace C<5.27.4> with your respective version of Perl.
 
 =head1 KNOWN PROBLEMS
 
diff --git a/README.macosx b/README.macosx
index b883b17cc4..bc3aa7eebe 100644
--- a/README.macosx
+++ b/README.macosx
@@ -10,9 +10,9 @@ perlmacosx - Perl under Mac OS X
 
 This document briefly describes Perl under Mac OS X.
 
-  curl -O http://www.cpan.org/src/perl-5.27.3.tar.gz
-  tar -xzf perl-5.27.3.tar.gz
-  cd perl-5.27.3
+  curl -O http://www.cpan.org/src/perl-5.27.4.tar.gz
+  tar -xzf perl-5.27.4.tar.gz
+  cd perl-5.27.4
   ./Configure -des -Dprefix=/usr/local/
   make
   make test
@@ -20,7 +20,7 @@ This document briefly describes Perl under Mac OS X.
 
 =head1 DESCRIPTION
 
-The latest Perl release (5.27.3 as of this writing) builds without changes
+The latest Perl release (5.27.4 as of this writing) builds without changes
 under all versions of Mac OS X from 10.3 "Panther" onwards. 
 
 In order to build your own version of Perl you will need 'make',
diff --git a/README.os2 b/README.os2
index 7657dc8495..cb49f35037 100644
--- a/README.os2
+++ b/README.os2
@@ -619,7 +619,7 @@ C<set PERLLIB_PREFIX> in F<Config.sys>, see L</"C<PERLLIB_PREFIX>">.
 
 =item Additional Perl modules
 
-  unzip perl_ste.zip -d f:/perllib/lib/site_perl/5.27.3/
+  unzip perl_ste.zip -d f:/perllib/lib/site_perl/5.27.4/
 
 Same remark as above applies.  Additionally, if this directory is not
 one of directories on @INC (and @INC is influenced by C<PERLLIB_PREFIX>), you
diff --git a/README.vms b/README.vms
index 9a34d5636f..1dcdeea0d2 100644
--- a/README.vms
+++ b/README.vms
@@ -142,11 +142,11 @@ You may need to set up a foreign symbol for the unpacking utility of
 choice.  Once you have done so, use a command like the following to
 unpack the archive:
 
-    vmstar -xvf perl-5^.27^.3.tar
+    vmstar -xvf perl-5^.27^.4.tar
 
 Then set default to the top-level source directory like so:
 
-    set default [.perl-5^.27^.3]
+    set default [.perl-5^.27^.4]
 
 and proceed with configuration as described in the next section.
 
diff --git a/dist/Module-CoreList/Changes b/dist/Module-CoreList/Changes
index 1788cf04b8..b5b0f904be 100644
--- a/dist/Module-CoreList/Changes
+++ b/dist/Module-CoreList/Changes
@@ -1,3 +1,6 @@
+5.20170920
+  - Updated for v5.27.4
+
 5.20170821
   - Updated for v5.27.3
 
diff --git a/dist/Module-CoreList/lib/Module/CoreList.pm b/dist/Module-CoreList/lib/Module/CoreList.pm
index 8afd89af79..24bd67f9ef 100644
--- a/dist/Module-CoreList/lib/Module/CoreList.pm
+++ b/dist/Module-CoreList/lib/Module/CoreList.pm
@@ -3,7 +3,7 @@ use strict;
 use vars qw/$VERSION %released %version %families %upstream
 	    %bug_tracker %deprecated %delta/;
 use version;
-$VERSION = '5.20170821';
+$VERSION = '5.20170920';
 
 sub PKG_PATTERN () { q#\A[a-zA-Z_][0-9a-zA-Z_]*(?:(::|')[0-9a-zA-Z_]+)*\z# }
 sub _looks_like_invocant ($) { local $@; !!eval { $_[0]->isa(__PACKAGE__) } }
@@ -320,6 +320,7 @@ sub changes_between {
     5.024002 => '2017-07-15',
     5.027002 => '2017-07-20',
     5.027003 => '2017-08-21',
+    5.027004 => '2017-09-20',
   );
 
 for my $version ( sort { $a <=> $b } keys %released ) {
@@ -14405,6 +14406,18 @@ for my $version ( sort { $a <=> $b } keys %released ) {
         removed => {
         }
     },
+    5.027004 => {
+        delta_from => 5.027003,
+        changed => {
+            'B::Op_private'         => '5.027004',
+            'Config'                => '5.027004',
+            'Module::CoreList'      => '5.20170920',
+            'Module::CoreList::TieHashDelta'=> '5.20170920',
+            'Module::CoreList::Utils'=> '5.20170920',
+        },
+        removed => {
+        }
+    },
 );
 
 sub is_core
@@ -15205,6 +15218,13 @@ sub is_core
         removed => {
         }
     },
+    5.027004 => {
+        delta_from => 5.027003,
+        changed => {
+        },
+        removed => {
+        }
+    },
 );
 
 %deprecated = _undelta(\%deprecated);
diff --git a/dist/Module-CoreList/lib/Module/CoreList/TieHashDelta.pm b/dist/Module-CoreList/lib/Module/CoreList/TieHashDelta.pm
index fd64f26ea3..553dc99d18 100644
--- a/dist/Module-CoreList/lib/Module/CoreList/TieHashDelta.pm
+++ b/dist/Module-CoreList/lib/Module/CoreList/TieHashDelta.pm
@@ -3,7 +3,7 @@ package Module::CoreList::TieHashDelta;
 use strict;
 use vars qw($VERSION);
 
-$VERSION = '5.20170821';
+$VERSION = '5.20170920';
 
 sub TIEHASH {
     my ($class, $changed, $removed, $parent) = @_;
diff --git a/dist/Module-CoreList/lib/Module/CoreList/Utils.pm b/dist/Module-CoreList/lib/Module/CoreList/Utils.pm
index 051a3176e0..1660d02b1f 100644
--- a/dist/Module-CoreList/lib/Module/CoreList/Utils.pm
+++ b/dist/Module-CoreList/lib/Module/CoreList/Utils.pm
@@ -5,7 +5,7 @@ use warnings;
 use vars qw[$VERSION %utilities];
 use Module::CoreList;
 
-$VERSION = '5.20170821';
+$VERSION = '5.20170920';
 
 sub utilities {
     my $perl = shift;
@@ -1305,6 +1305,13 @@ my %delta = (
         removed => {
         }
     },
+    5.027004 => {
+        delta_from => 5.027003,
+        changed => {
+        },
+        removed => {
+        }
+    },
 );
 
 %utilities = Module::CoreList::_undelta(\%delta);
diff --git a/hints/catamount.sh b/hints/catamount.sh
index ed7670ff23..f8643c518c 100644
--- a/hints/catamount.sh
+++ b/hints/catamount.sh
@@ -31,11 +31,11 @@
 # mkdir -p /opt/perl-catamount
 # mkdir -p /opt/perl-catamount/include
 # mkdir -p /opt/perl-catamount/lib
-# mkdir -p /opt/perl-catamount/lib/perl5/5.27.3
+# mkdir -p /opt/perl-catamount/lib/perl5/5.27.4
 # mkdir -p /opt/perl-catamount/bin
 # cp *.h /opt/perl-catamount/include
 # cp libperl.a /opt/perl-catamount/lib
-# cp -pr lib/* /opt/perl-catamount/lib/perl5/5.27.3
+# cp -pr lib/* /opt/perl-catamount/lib/perl5/5.27.4
 # cp miniperl perl run.sh cc.sh /opt/perl-catamount/lib
 #
 # With the headers and the libperl.a you can embed Perl to your Catamount
diff --git a/lib/B/Op_private.pm b/lib/B/Op_private.pm
index fbac993d0e..19d1333e4a 100644
--- a/lib/B/Op_private.pm
+++ b/lib/B/Op_private.pm
@@ -118,7 +118,7 @@ package B::Op_private;
 our %bits;
 
 
-our $VERSION = "5.027003";
+our $VERSION = "5.027004";
 
 $bits{$_}{3} = 'OPpENTERSUB_AMPER' for qw(entersub rv2cv);
 $bits{$_}{6} = 'OPpENTERSUB_DB' for qw(entersub rv2cv);
diff --git a/patchlevel.h b/patchlevel.h
index b05a6f2092..1b44a8556c 100644
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -15,7 +15,7 @@
 
 #define PERL_REVISION	5		/* age */
 #define PERL_VERSION	27		/* epoch */
-#define PERL_SUBVERSION	3		/* generation */
+#define PERL_SUBVERSION	4		/* generation */
 
 /* The following numbers describe the earliest compatible version of
    Perl ("compatibility" here being defined as sufficient binary/API
@@ -36,7 +36,7 @@
 */
 #define PERL_API_REVISION	5
 #define PERL_API_VERSION	27
-#define PERL_API_SUBVERSION	3
+#define PERL_API_SUBVERSION	4
 /*
    XXX Note:  The selection of non-default Configure options, such
    as -Duselonglong may invalidate these settings.  Currently, Configure
diff --git a/plan9/config.plan9 b/plan9/config.plan9
index c4606f209d..768801d90e 100644
--- a/plan9/config.plan9
+++ b/plan9/config.plan9
@@ -3329,8 +3329,8 @@
  *	This symbol contains the ~name expanded version of PRIVLIB, to be used
  *	in programs that are not prepared to deal with ~ expansion at run-time.
  */
-#define PRIVLIB "/sys/lib/perl/5.27.3"		/**/
-#define PRIVLIB_EXP "/sys/lib/perl/5.27.3"		/**/
+#define PRIVLIB "/sys/lib/perl/5.27.4"		/**/
+#define PRIVLIB_EXP "/sys/lib/perl/5.27.4"		/**/
 
 /* PTRSIZE:
  *	This symbol contains the size of a pointer, so that the C preprocessor
@@ -3457,9 +3457,9 @@
  *	removed.  The elements in inc_version_list (inc_version_list.U) can
  *	be tacked onto this variable to generate a list of directories to search.
  */
-#define SITELIB "/sys/lib/perl/5.27.3/site_perl"		/**/
-#define SITELIB_EXP "/sys/lib/perl/5.27.3/site_perl"		/**/
-#define SITELIB_STEM "/sys/lib/perl/5.27.3/site_perl"		/**/
+#define SITELIB "/sys/lib/perl/5.27.4/site_perl"		/**/
+#define SITELIB_EXP "/sys/lib/perl/5.27.4/site_perl"		/**/
+#define SITELIB_STEM "/sys/lib/perl/5.27.4/site_perl"		/**/
 
 /* Size_t_size:
  *	This symbol holds the size of a Size_t in bytes.
diff --git a/plan9/config_sh.sample b/plan9/config_sh.sample
index f6ad212814..49a42ff13d 100644
--- a/plan9/config_sh.sample
+++ b/plan9/config_sh.sample
@@ -32,12 +32,12 @@ alignbytes='4'
 ansi2knr=''
 aphostname='/bin/uname -n'
 api_revision='5'
-api_subversion='3'
+api_subversion='4'
 api_version='27'
-api_versionstring='5.27.3'
+api_versionstring='5.27.4'
 ar='ar'
-archlib='/sys/lib/perl5/5.27.3/386'
-archlibexp='/sys/lib/perl5/5.27.3/386'
+archlib='/sys/lib/perl5/5.27.4/386'
+archlibexp='/sys/lib/perl5/5.27.4/386'
 archname64=''
 archname='386'
 archobjs=''
@@ -820,17 +820,17 @@ inc_version_list=' '
 inc_version_list_init='0'
 incpath=''
 inews=''
-installarchlib='/sys/lib/perl/5.27.3/386'
+installarchlib='/sys/lib/perl/5.27.4/386'
 installbin='/usr/bin'
 installman1dir='/sys/man/1pub'
 installman3dir='/sys/man/2pub'
 installprefix='/usr'
 installprefixexp='/usr'
-installprivlib='/sys/lib/perl/5.27.3'
+installprivlib='/sys/lib/perl/5.27.4'
 installscript='/usr/bin'
-installsitearch='/sys/lib/perl/5.27.3/site_perl/386'
+installsitearch='/sys/lib/perl/5.27.4/site_perl/386'
 installsitebin='/usr/bin'
-installsitelib='/sys/lib/perl/5.27.3/site_perl'
+installsitelib='/sys/lib/perl/5.27.4/site_perl'
 installstyle='lib/perl5'
 installusrbinperl='undef'
 installvendorarch=''
@@ -955,8 +955,8 @@ pmake=''
 pr=''
 prefix='/usr'
 prefixexp='/usr'
-privlib='/sys/lib/perl/5.27.3'
-privlibexp='/sys/lib/perl/5.27.3'
+privlib='/sys/lib/perl/5.27.4'
+privlibexp='/sys/lib/perl/5.27.4'
 procselfexe=''
 prototype='define'
 ptrsize='4'
@@ -1021,13 +1021,13 @@ sig_num='0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
 sig_num_init='0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 0'
 sig_size='50'
 signal_t='void'
-sitearch='/sys/lib/perl/5.27.3/site_perl/386'
+sitearch='/sys/lib/perl/5.27.4/site_perl/386'
 sitearchexp='/sys/lib/perl/site_perl/386'
 sitebin='/usr/bin'
 sitebinexp='/usr/bin'
-sitelib='/sys/lib/perl/5.27.3/site_perl'
-sitelib_stem='/sys/lib/perl/5.27.3/site_perl'
-sitelibexp='/sys/lib/perl/5.27.3/site_perl'
+sitelib='/sys/lib/perl/5.27.4/site_perl'
+sitelib_stem='/sys/lib/perl/5.27.4/site_perl'
+sitelibexp='/sys/lib/perl/5.27.4/site_perl'
 siteprefix='/usr'
 siteprefixexp='/usr'
 sizesize='4'
@@ -1060,7 +1060,7 @@ stdio_stream_array=''
 strerror_r_proto='0'
 strings='/sys/include/ape/string.h'
 submit=''
-subversion='3'
+subversion='4'
 sysman='/sys/man/1pub'
 tail=''
 tar=''
@@ -1142,8 +1142,8 @@ vendorlib_stem=''
 vendorlibexp=''
 vendorprefix=''
 vendorprefixexp=''
-version='5.27.3'
-version_patchlevel_string='version 27 subversion 3'
+version='5.27.4'
+version_patchlevel_string='version 27 subversion 4'
 versiononly='undef'
 vi=''
 xlibpth=''
@@ -1157,9 +1157,9 @@ config_args=''
 config_argc=0
 PERL_REVISION=5
 PERL_VERSION=27
-PERL_SUBVERSION=3
+PERL_SUBVERSION=4
 PERL_API_REVISION=5
 PERL_API_VERSION=27
-PERL_API_SUBVERSION=3
+PERL_API_SUBVERSION=4
 PERL_PATCHLEVEL=
 PERL_CONFIG_SH=true
diff --git a/win32/GNUmakefile b/win32/GNUmakefile
index 2dedbd8069..16961e73d1 100644
--- a/win32/GNUmakefile
+++ b/win32/GNUmakefile
@@ -63,7 +63,7 @@ INST_TOP := $(INST_DRV)\perl
 # versioned installation can be obtained by setting INST_TOP above to a
 # path that includes an arbitrary version string.
 #
-#INST_VER	:= \5.27.3
+#INST_VER	:= \5.27.4
 
 #
 # Comment this out if you DON'T want your perl installation to have
diff --git a/win32/Makefile b/win32/Makefile
index ef7a7c9028..3998517c5f 100644
--- a/win32/Makefile
+++ b/win32/Makefile
@@ -38,7 +38,7 @@ INST_TOP	= $(INST_DRV)\perl
 # versioned installation can be obtained by setting INST_TOP above to a
 # path that includes an arbitrary version string.
 #
-#INST_VER	= \5.27.3
+#INST_VER	= \5.27.4
 
 #
 # Comment this out if you DON'T want your perl installation to have
diff --git a/win32/makefile.mk b/win32/makefile.mk
index 589a9a54f3..b13b5975cb 100644
--- a/win32/makefile.mk
+++ b/win32/makefile.mk
@@ -44,7 +44,7 @@ INST_TOP	*= $(INST_DRV)\perl
 # versioned installation can be obtained by setting INST_TOP above to a
 # path that includes an arbitrary version string.
 #
-#INST_VER	*= \5.27.3
+#INST_VER	*= \5.27.4
 
 #
 # Comment this out if you DON'T want your perl installation to have