Version debump: 5.26.0 -> 5.25.12

27 files changed, 200 insertions, 200 deletions

diff --git a/Cross/config.sh-arm-linux b/Cross/config.sh-arm-linux
index 6f934af8a0..04a61aa95f 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='0'
-api_version='26'
-api_versionstring='5.26.0'
+api_subversion='12'
+api_version='25'
+api_versionstring='5.25.12'
 ar='ar'
-archlib='/usr/lib/perl5/5.26.0/armv4l-linux'
-archlibexp='/usr/lib/perl5/5.26.0/armv4l-linux'
+archlib='/usr/lib/perl5/5.25.12/armv4l-linux'
+archlibexp='/usr/lib/perl5/5.25.12/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/perl5/5.26.0/armv4l-linux/CORE'
+ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5/5.25.12/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/perl5/5.26.0/armv4l-linux'
+installarchlib='./install_me_here/usr/lib/perl5/5.25.12/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/perl5/5.26.0'
+installprivlib='./install_me_here/usr/lib/perl5/5.25.12'
 installscript='./install_me_here/usr/bin'
-installsitearch='./install_me_here/usr/lib/perl5/site_perl/5.26.0/armv4l-linux'
+installsitearch='./install_me_here/usr/lib/perl5/site_perl/5.25.12/armv4l-linux'
 installsitebin='./install_me_here/usr/bin'
 installsitehtml1dir=''
 installsitehtml3dir=''
-installsitelib='./install_me_here/usr/lib/perl5/site_perl/5.26.0'
+installsitelib='./install_me_here/usr/lib/perl5/site_perl/5.25.12'
 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/perl5/5.26.0'
-privlibexp='/usr/lib/perl5/5.26.0'
+privlib='/usr/lib/perl5/5.25.12'
+privlibexp='/usr/lib/perl5/5.25.12'
 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/5.26.0/armv4l-linux'
-sitearchexp='/usr/lib/perl5/site_perl/5.26.0/armv4l-linux'
+sitearch='/usr/lib/perl5/site_perl/5.25.12/armv4l-linux'
+sitearchexp='/usr/lib/perl5/site_perl/5.25.12/armv4l-linux'
 sitebin='/usr/bin'
 sitebinexp='/usr/bin'
 sitehtml1dir=''
 sitehtml1direxp=''
 sitehtml3dir=''
 sitehtml3direxp=''
-sitelib='/usr/lib/perl5/site_perl/5.26.0'
+sitelib='/usr/lib/perl5/site_perl/5.25.12'
 sitelib_stem='/usr/lib/perl5/site_perl'
-sitelibexp='/usr/lib/perl5/site_perl/5.26.0'
+sitelibexp='/usr/lib/perl5/site_perl/5.25.12'
 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='0'
+subversion='12'
 sysman='/usr/share/man/man1'
 tail=''
 tar=''
@@ -1181,8 +1181,8 @@ vendorprefix=''
 vendorprefixexp=''
 vendorscript=''
 vendorscriptexp=''
-version='5.26.0'
-version_patchlevel_string='version 26 subversion 0'
+version='5.25.12'
+version_patchlevel_string='version 25 subversion 12'
 versiononly='undef'
 vi=''
 xlibpth='/usr/lib/386 /lib/386'
@@ -1195,10 +1195,10 @@ config_arg0='Configure'
 config_args=''
 config_argc=0
 PERL_REVISION=5
-PERL_VERSION=26
-PERL_SUBVERSION=0
+PERL_VERSION=25
+PERL_SUBVERSION=12
 PERL_API_REVISION=5
-PERL_API_VERSION=26
-PERL_API_SUBVERSION=0
+PERL_API_VERSION=25
+PERL_API_SUBVERSION=12
 PERL_PATCHLEVEL=
 PERL_CONFIG_SH=true
diff --git a/Cross/config.sh-arm-linux-n770 b/Cross/config.sh-arm-linux-n770
index 4b78f5dc47..d3429fdcc2 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='0'
-api_version='26'
-api_versionstring='5.26.0'
+api_subversion='12'
+api_version='25'
+api_versionstring='5.25.12'
 ar='ar'
-archlib='/usr/lib/perl5/5.26.0/armv4l-linux'
-archlibexp='/usr/lib/perl5/5.26.0/armv4l-linux'
+archlib='/usr/lib/perl5/5.25.12/armv4l-linux'
+archlibexp='/usr/lib/perl5/5.25.12/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/perl5/5.26.0/armv4l-linux/CORE'
+ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5/5.25.12/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/perl5/5.26.0/armv4l-linux'
+installarchlib='./install_me_here/usr/lib/perl5/5.25.12/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/perl5/5.26.0'
+installprivlib='./install_me_here/usr/lib/perl5/5.25.12'
 installscript='./install_me_here/usr/bin'
-installsitearch='./install_me_here/usr/lib/perl5/site_perl/5.26.0/armv4l-linux'
+installsitearch='./install_me_here/usr/lib/perl5/site_perl/5.25.12/armv4l-linux'
 installsitebin='./install_me_here/usr/bin'
 installsitehtml1dir=''
 installsitehtml3dir=''
-installsitelib='./install_me_here/usr/lib/perl5/site_perl/5.26.0'
+installsitelib='./install_me_here/usr/lib/perl5/site_perl/5.25.12'
 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/perl5/5.26.0'
-privlibexp='/usr/lib/perl5/5.26.0'
+privlib='/usr/lib/perl5/5.25.12'
+privlibexp='/usr/lib/perl5/5.25.12'
 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/5.26.0/armv4l-linux'
-sitearchexp='/usr/lib/perl5/site_perl/5.26.0/armv4l-linux'
+sitearch='/usr/lib/perl5/site_perl/5.25.12/armv4l-linux'
+sitearchexp='/usr/lib/perl5/site_perl/5.25.12/armv4l-linux'
 sitebin='/usr/bin'
 sitebinexp='/usr/bin'
 sitehtml1dir=''
 sitehtml1direxp=''
 sitehtml3dir=''
 sitehtml3direxp=''
-sitelib='/usr/lib/perl5/site_perl/5.26.0'
+sitelib='/usr/lib/perl5/site_perl/5.25.12'
 sitelib_stem='/usr/lib/perl5/site_perl'
-sitelibexp='/usr/lib/perl5/site_perl/5.26.0'
+sitelibexp='/usr/lib/perl5/site_perl/5.25.12'
 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='0'
+subversion='12'
 sysman='/usr/share/man/man1'
 tail=''
 tar=''
@@ -1035,8 +1035,8 @@ vendorprefix=''
 vendorprefixexp=''
 vendorscript=''
 vendorscriptexp=''
-version='5.26.0'
-version_patchlevel_string='version 26 subversion 0'
+version='5.25.12'
+version_patchlevel_string='version 25 subversion 12'
 versiononly='undef'
 vi=''
 xlibpth='/usr/lib/386 /lib/386'
@@ -1049,10 +1049,10 @@ config_arg0='Configure'
 config_args=''
 config_argc=0
 PERL_REVISION=5
-PERL_VERSION=26
-PERL_SUBVERSION=0
+PERL_VERSION=25
+PERL_SUBVERSION=12
 PERL_API_REVISION=5
-PERL_API_VERSION=26
-PERL_API_SUBVERSION=0
+PERL_API_VERSION=25
+PERL_API_SUBVERSION=12
 PERL_PATCHLEVEL=
 PERL_CONFIG_SH=true
diff --git a/INSTALL b/INSTALL
index d2b5784fe3..fc4a4bbbed 100644
--- a/INSTALL
+++ b/INSTALL
@@ -588,7 +588,7 @@ 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 5.26.0.
+By default, Configure will use the following directories for 5.25.12.
 $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
@@ -742,7 +742,7 @@ run-time methods: $PERLLIB, $PERL5LIB, -I, use lib, etc.
 
 =item default_inc_excludes_dot
 
-Since version 5.26.0, default perl builds no longer includes C<'.'> as the
+Since version 5.25.12, default perl builds no longer includes C<'.'> as the
 last element of @INC. The old behaviour can restored using 
 
 	sh Configure -Udefault_inc_excludes_dot
@@ -2451,7 +2451,7 @@ http://www.chiark.greenend.org.uk/~sgtatham/bugs.html
 
 =head1 Coexistence with earlier versions of perl 5
 
-Perl 5.26.0 is not binary compatible with earlier versions of Perl.
+Perl 5.25.12 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
@@ -2526,9 +2526,9 @@ 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/perl5.26.0
+	sh Configure -Dprefix=/opt/perl5.25.12
 
-and adding /opt/perl5.26.0/bin to the shell PATH variable.  Such users
+and adding /opt/perl5.25.12/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.
 
@@ -2543,11 +2543,11 @@ yet.
 
 =head2 Upgrading from 5.25.9 or earlier
 
-B<Perl 5.26.0 may not be binary compatible with Perl 5.25.9 or
+B<Perl 5.25.12 may not be binary compatible with Perl 5.25.9 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 5.26.0.  If you find you do need to rebuild an extension with
-5.26.0, you may safely do so without disturbing the older
+used with 5.25.12.  If you find you do need to rebuild an extension with
+5.25.12, you may safely do so without disturbing the older
 installations.  (See L<"Coexistence with earlier versions of perl 5">
 above.)
 
@@ -2580,15 +2580,15 @@ Firstly, the bare minimum to run this script
      print("$f\n");
   }
 
-in Linux with perl-5.26.0 is as follows (under $Config{prefix}):
+in Linux with perl-5.25.12 is as follows (under $Config{prefix}):
 
   ./bin/perl
-  ./lib/perl5/5.26.0/strict.pm
-  ./lib/perl5/5.26.0/warnings.pm
-  ./lib/perl5/5.26.0/i686-linux/File/Glob.pm
-  ./lib/perl5/5.26.0/feature.pm
-  ./lib/perl5/5.26.0/XSLoader.pm
-  ./lib/perl5/5.26.0/i686-linux/auto/File/Glob/Glob.so
+  ./lib/perl5/5.25.12/strict.pm
+  ./lib/perl5/5.25.12/warnings.pm
+  ./lib/perl5/5.25.12/i686-linux/File/Glob.pm
+  ./lib/perl5/5.25.12/feature.pm
+  ./lib/perl5/5.25.12/XSLoader.pm
+  ./lib/perl5/5.25.12/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 8e5a6d2965..d5c93098f3 100644
--- a/META.json
+++ b/META.json
@@ -126,6 +126,6 @@
          "url" : "http://perl5.git.perl.org/"
       }
    },
-   "version" : "5.026000",
+   "version" : "5.025012",
    "x_serialization_backend" : "JSON::PP version 2.27400_02"
 }
diff --git a/META.yml b/META.yml
index c164c52dee..de7ff5bfc8 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: '5.026000'
+version: '5.025012'
 x_serialization_backend: 'CPAN::Meta::YAML version 0.018'
diff --git a/NetWare/Makefile b/NetWare/Makefile
index 779faeb5eb..6dbd7d921e 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 5.26.0 for NetWare"
+MODULE_DESC     = "Perl 5.25.12 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	= \5.26.0
+INST_VER	= \5.25.12
 
 #
 # 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 b96d6c958f..cdf7fce8a7 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\\5.26.0\\lib\\NetWare-x86-multi-thread"		/**/
+#define ARCHLIB "c:\\perl\\5.25.12\\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\\5.26.0\\bin\\NetWare-x86-multi-thread"	/**/
-#define BIN_EXP "c:\\perl\\5.26.0\\bin\\NetWare-x86-multi-thread"	/**/
+#define BIN "c:\\perl\\5.25.12\\bin\\NetWare-x86-multi-thread"	/**/
+#define BIN_EXP "c:\\perl\\5.25.12\\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\\5.26.0\\lib\\NetWare-x86-multi-thread"		/**/
+#define SITEARCH "c:\\perl\\site\\5.25.12\\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\\5.26.0\\lib"		/**/
+#define SITELIB "c:\\perl\\site\\5.25.12\\lib"		/**/
 /*#define SITELIB_EXP ""	/**/
 #define SITELIB_STEM ""		/**/
 
diff --git a/Porting/config.sh b/Porting/config.sh
index d0b4f7c453..57916122ec 100644
--- a/Porting/config.sh
+++ b/Porting/config.sh
@@ -39,12 +39,12 @@ alignbytes='8'
 ansi2knr=''
 aphostname='/bin/hostname'
 api_revision='5'
-api_subversion='0'
-api_version='26'
-api_versionstring='5.26.0'
+api_subversion='12'
+api_version='25'
+api_versionstring='5.25.12'
 ar='ar'
-archlib='/tmp/mblead/lib/perl5/5.26.0/darwin-2level'
-archlibexp='/tmp/mblead/lib/perl5/5.26.0/darwin-2level'
+archlib='/tmp/mblead/lib/perl5/5.25.12/darwin-2level'
+archlibexp='/tmp/mblead/lib/perl5/5.25.12/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/perl5/5.26.0/darwin-2level'
+installarchlib='/tmp/mblead/lib/perl5/5.25.12/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/perl5/5.26.0'
+installprivlib='/tmp/mblead/lib/perl5/5.25.12'
 installscript='/tmp/mblead/bin'
-installsitearch='/tmp/mblead/lib/perl5/site_perl/5.26.0/darwin-2level'
+installsitearch='/tmp/mblead/lib/perl5/site_perl/5.25.12/darwin-2level'
 installsitebin='/tmp/mblead/bin'
 installsitehtml1dir=''
 installsitehtml3dir=''
-installsitelib='/tmp/mblead/lib/perl5/site_perl/5.26.0'
+installsitelib='/tmp/mblead/lib/perl5/site_perl/5.25.12'
 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/perl5.26.0'
+perlpath='/tmp/mblead/bin/perl5.25.12'
 pg='pg'
 phostname='hostname'
 pidtype='pid_t'
@@ -994,8 +994,8 @@ pmake=''
 pr=''
 prefix='/tmp/mblead'
 prefixexp='/tmp/mblead'
-privlib='/tmp/mblead/lib/perl5/5.26.0'
-privlibexp='/tmp/mblead/lib/perl5/5.26.0'
+privlib='/tmp/mblead/lib/perl5/5.25.12'
+privlibexp='/tmp/mblead/lib/perl5/5.25.12'
 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/5.26.0/darwin-2level'
-sitearchexp='/tmp/mblead/lib/perl5/site_perl/5.26.0/darwin-2level'
+sitearch='/tmp/mblead/lib/perl5/site_perl/5.25.12/darwin-2level'
+sitearchexp='/tmp/mblead/lib/perl5/site_perl/5.25.12/darwin-2level'
 sitebin='/tmp/mblead/bin'
 sitebinexp='/tmp/mblead/bin'
 sitehtml1dir=''
 sitehtml1direxp=''
 sitehtml3dir=''
 sitehtml3direxp=''
-sitelib='/tmp/mblead/lib/perl5/site_perl/5.26.0'
+sitelib='/tmp/mblead/lib/perl5/site_perl/5.25.12'
 sitelib_stem='/tmp/mblead/lib/perl5/site_perl'
-sitelibexp='/tmp/mblead/lib/perl5/site_perl/5.26.0'
+sitelibexp='/tmp/mblead/lib/perl5/site_perl/5.25.12'
 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/perl5.26.0'
+startperl='#!/tmp/mblead/bin/perl5.25.12'
 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='0'
+subversion='12'
 sysman='/usr/share/man/man1'
 sysroot=''
 tail=''
@@ -1209,8 +1209,8 @@ vendorprefix=''
 vendorprefixexp=''
 vendorscript=''
 vendorscriptexp=''
-version='5.26.0'
-version_patchlevel_string='version 26 subversion 0'
+version='5.25.12'
+version_patchlevel_string='version 25 subversion 12'
 versiononly='define'
 vi=''
 xlibpth='/usr/lib/386 /lib/386'
@@ -1219,10 +1219,10 @@ yaccflags=''
 zcat=''
 zip='zip'
 PERL_REVISION=5
-PERL_VERSION=26
-PERL_SUBVERSION=0
+PERL_VERSION=25
+PERL_SUBVERSION=12
 PERL_API_REVISION=5
-PERL_API_VERSION=26
-PERL_API_SUBVERSION=0
+PERL_API_VERSION=25
+PERL_API_SUBVERSION=12
 PERL_PATCHLEVEL=''
 PERL_CONFIG_SH=true
diff --git a/Porting/config_H b/Porting/config_H
index 00197663e0..8615586dbd 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/perl5/5.26.0/i686-linux-64int-ld"		/**/
-#define ARCHLIB_EXP "/pro/lib/perl5/5.26.0/i686-linux-64int-ld"		/**/
+#define ARCHLIB "/pro/lib/perl5/5.25.12/i686-linux-64int-ld"		/**/
+#define ARCHLIB_EXP "/pro/lib/perl5/5.25.12/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/perl5/5.26.0"		/**/
-#define PRIVLIB_EXP "/pro/lib/perl5/5.26.0"		/**/
+#define PRIVLIB "/pro/lib/perl5/5.25.12"		/**/
+#define PRIVLIB_EXP "/pro/lib/perl5/5.25.12"		/**/
 
 /* 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/5.26.0/i686-linux-64int-ld"		/**/
-#define SITEARCH_EXP "/pro/lib/perl5/site_perl/5.26.0/i686-linux-64int-ld"		/**/
+#define SITEARCH "/pro/lib/perl5/site_perl/5.25.12/i686-linux-64int-ld"		/**/
+#define SITEARCH_EXP "/pro/lib/perl5/site_perl/5.25.12/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/5.26.0"		/**/
-#define SITELIB_EXP "/pro/lib/perl5/site_perl/5.26.0"		/**/
+#define SITELIB "/pro/lib/perl5/site_perl/5.25.12"		/**/
+#define SITELIB_EXP "/pro/lib/perl5/site_perl/5.25.12"		/**/
 #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/perl5.26.0"		/**/
+#define STARTPERL "#!/pro/bin/perl5.25.12"		/**/
 
 /* HAS_STDIO_STREAM_ARRAY:
  *	This symbol, if defined, tells that there is an array
diff --git a/Porting/todo.pod b/Porting/todo.pod
index 6493d48cc9..e6e4db46ac 100644
--- a/Porting/todo.pod
+++ b/Porting/todo.pod
@@ -485,7 +485,7 @@ Natively 64-bit systems need neither -Duse64bitint nor -Duse64bitall.
 On these systems, it might be the default compilation mode, and there
 is currently no guarantee that passing no use64bitall option to the
 Configure process will build a 32bit perl. Implementing -Duse32bit*
-options would be nice for perl 5.26.0.
+options would be nice for perl 5.25.12.
 
 =head2 Profile Perl - am I hot or not?
 
@@ -1205,7 +1205,7 @@ L<http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2013-01/msg00339.html>
 =head1 Big projects
 
 Tasks that will get your name mentioned in the description of the "Highlights
-of 5.26.0"
+of 5.25.12"
 
 =head2 make ithreads more robust
 
diff --git a/README.haiku b/README.haiku
index 3f148a4f19..9ff573a689 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 perl5/5.26.0/BePC-haiku/CORE/libperl.so .
+  cd /boot/common/lib; ln -s perl5/5.25.12/BePC-haiku/CORE/libperl.so .
 
-Replace C<5.26.0> with your respective version of Perl.
+Replace C<5.25.12> with your respective version of Perl.
 
 =head1 KNOWN PROBLEMS
 
diff --git a/README.macosx b/README.macosx
index c5faf042ea..6fce53c9d0 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-5.26.0.tar.gz
-  tar -xzf perl-5.26.0.tar.gz
-  cd perl-5.26.0
+  curl -O http://www.cpan.org/src/perl-5.25.12.tar.gz
+  tar -xzf perl-5.25.12.tar.gz
+  cd perl-5.25.12
   ./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 (5.26.0 as of this writing) builds without changes
+The latest Perl release (5.25.12 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 8e3c2df3cf..8113779c12 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/5.26.0/
+  unzip perl_ste.zip -d f:/perllib/lib/site_perl/5.25.12/
 
 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 714bbaf91e..b202090410 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^.26^.0.tar
+    vmstar -xvf perl-5^.25^.12.tar
 
 Then set default to the top-level source directory like so:
 
-    set default [.perl-5^.26^.0]
+    set default [.perl-5^.25^.12]
 
 and proceed with configuration as described in the next section.
 
diff --git a/README.win32 b/README.win32
index 9845bd0a1d..0e891fc17b 100644
--- a/README.win32
+++ b/README.win32
@@ -393,7 +393,7 @@ Be sure to read the instructions near the top of the makefiles carefully.
 Type "dmake" (or "nmake" if you are using that make).
 
 This should build everything.  Specifically, it will create perl.exe,
-perl526.dll at the perl toplevel, and various other extension dll's
+perl525.dll at the perl toplevel, and various other extension dll's
 under the lib\auto directory.  If the build fails for any reason, make
 sure you have done the previous steps correctly.
 
diff --git a/hints/catamount.sh b/hints/catamount.sh
index d682a84223..eb0b7c09da 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/perl5/5.26.0
+# mkdir -p /opt/perl-catamount/lib/perl5/5.25.12
 # 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/perl5/5.26.0
+# cp -pr lib/* /opt/perl-catamount/lib/perl5/5.25.12
 # 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/patchlevel.h b/patchlevel.h
index 6cacfde0c4..f40e160528 100644
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -14,8 +14,8 @@
  * exactly on the third column */
 
 #define PERL_REVISION	5		/* age */
-#define PERL_VERSION	26		/* epoch */
-#define PERL_SUBVERSION	0		/* generation */
+#define PERL_VERSION	25		/* epoch */
+#define PERL_SUBVERSION	12		/* generation */
 
 /* The following numbers describe the earliest compatible version of
    Perl ("compatibility" here being defined as sufficient binary/API
@@ -35,8 +35,8 @@
    changing them should not be necessary.
 */
 #define PERL_API_REVISION	5
-#define PERL_API_VERSION	26
-#define PERL_API_SUBVERSION	0
+#define PERL_API_VERSION	25
+#define PERL_API_SUBVERSION	12
 /*
    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 e1a0005274..62a2c2aa13 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/5.26.0"		/**/
-#define PRIVLIB_EXP "/sys/lib/perl/5.26.0"		/**/
+#define PRIVLIB "/sys/lib/perl/5.25.12"		/**/
+#define PRIVLIB_EXP "/sys/lib/perl/5.25.12"		/**/
 
 /* 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/5.26.0/site_perl"		/**/
-#define SITELIB_EXP "/sys/lib/perl/5.26.0/site_perl"		/**/
-#define SITELIB_STEM "/sys/lib/perl/5.26.0/site_perl"		/**/
+#define SITELIB "/sys/lib/perl/5.25.12/site_perl"		/**/
+#define SITELIB_EXP "/sys/lib/perl/5.25.12/site_perl"		/**/
+#define SITELIB_STEM "/sys/lib/perl/5.25.12/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 6983c59f4f..e5e79eb5f2 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='0'
-api_version='26'
-api_versionstring='5.26.0'
+api_subversion='12'
+api_version='25'
+api_versionstring='5.25.12'
 ar='ar'
-archlib='/sys/lib/perl5/5.26.0/386'
-archlibexp='/sys/lib/perl5/5.26.0/386'
+archlib='/sys/lib/perl5/5.25.12/386'
+archlibexp='/sys/lib/perl5/5.25.12/386'
 archname64=''
 archname='386'
 archobjs=''
@@ -820,17 +820,17 @@ inc_version_list=' '
 inc_version_list_init='0'
 incpath=''
 inews=''
-installarchlib='/sys/lib/perl/5.26.0/386'
+installarchlib='/sys/lib/perl/5.25.12/386'
 installbin='/usr/bin'
 installman1dir='/sys/man/1pub'
 installman3dir='/sys/man/2pub'
 installprefix='/usr'
 installprefixexp='/usr'
-installprivlib='/sys/lib/perl/5.26.0'
+installprivlib='/sys/lib/perl/5.25.12'
 installscript='/usr/bin'
-installsitearch='/sys/lib/perl/5.26.0/site_perl/386'
+installsitearch='/sys/lib/perl/5.25.12/site_perl/386'
 installsitebin='/usr/bin'
-installsitelib='/sys/lib/perl/5.26.0/site_perl'
+installsitelib='/sys/lib/perl/5.25.12/site_perl'
 installstyle='lib/perl5'
 installusrbinperl='undef'
 installvendorarch=''
@@ -955,8 +955,8 @@ pmake=''
 pr=''
 prefix='/usr'
 prefixexp='/usr'
-privlib='/sys/lib/perl/5.26.0'
-privlibexp='/sys/lib/perl/5.26.0'
+privlib='/sys/lib/perl/5.25.12'
+privlibexp='/sys/lib/perl/5.25.12'
 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/5.26.0/site_perl/386'
+sitearch='/sys/lib/perl/5.25.12/site_perl/386'
 sitearchexp='/sys/lib/perl/site_perl/386'
 sitebin='/usr/bin'
 sitebinexp='/usr/bin'
-sitelib='/sys/lib/perl/5.26.0/site_perl'
-sitelib_stem='/sys/lib/perl/5.26.0/site_perl'
-sitelibexp='/sys/lib/perl/5.26.0/site_perl'
+sitelib='/sys/lib/perl/5.25.12/site_perl'
+sitelib_stem='/sys/lib/perl/5.25.12/site_perl'
+sitelibexp='/sys/lib/perl/5.25.12/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='0'
+subversion='12'
 sysman='/sys/man/1pub'
 tail=''
 tar=''
@@ -1142,8 +1142,8 @@ vendorlib_stem=''
 vendorlibexp=''
 vendorprefix=''
 vendorprefixexp=''
-version='5.26.0'
-version_patchlevel_string='version 26 subversion 0'
+version='5.25.12'
+version_patchlevel_string='version 25 subversion 12'
 versiononly='undef'
 vi=''
 xlibpth=''
@@ -1156,10 +1156,10 @@ config_arg0='./Configure'
 config_args=''
 config_argc=0
 PERL_REVISION=5
-PERL_VERSION=26
-PERL_SUBVERSION=0
+PERL_VERSION=25
+PERL_SUBVERSION=12
 PERL_API_REVISION=5
-PERL_API_VERSION=26
-PERL_API_SUBVERSION=0
+PERL_API_VERSION=25
+PERL_API_SUBVERSION=12
 PERL_PATCHLEVEL=
 PERL_CONFIG_SH=true
diff --git a/sv.c b/sv.c
index e90ea8408b..51505491bd 100644
--- a/sv.c
+++ b/sv.c
@@ -4792,7 +4792,7 @@ Doesn't handle set magic.
 The perl equivalent is C<$sv = undef;>. Note that it doesn't free any string
 buffer, unlike C<undef $sv>.
 
-Introduced in perl 5.26.0.
+Introduced in perl 5.25.12.
 
 =cut
 */
diff --git a/uconfig.h b/uconfig.h
index 6832f6f73d..dee1b25f0a 100644
--- a/uconfig.h
+++ b/uconfig.h
@@ -1398,8 +1398,8 @@
  *	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 "/usr/local/lib/perl5/5.26/unknown"		/ **/
-/*#define ARCHLIB_EXP "/usr/local/lib/perl5/5.26/unknown"		/ **/
+/*#define ARCHLIB "/usr/local/lib/perl5/5.25/unknown"		/ **/
+/*#define ARCHLIB_EXP "/usr/local/lib/perl5/5.25/unknown"		/ **/
 
 /* BIN:
  *	This symbol holds the path of the bin directory where the package will
@@ -1452,8 +1452,8 @@
  *	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 "/usr/local/lib/perl5/5.26"		/**/
-#define PRIVLIB_EXP "/usr/local/lib/perl5/5.26"		/**/
+#define PRIVLIB "/usr/local/lib/perl5/5.25"		/**/
+#define PRIVLIB_EXP "/usr/local/lib/perl5/5.25"		/**/
 
 /* SITEARCH:
  *	This symbol contains the name of the private library for this package.
@@ -1470,8 +1470,8 @@
  *	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 "/usr/local/lib/perl5/5.26/unknown"		/ **/
-/*#define SITEARCH_EXP "/usr/local/lib/perl5/5.26/unknown"		/ **/
+/*#define SITEARCH "/usr/local/lib/perl5/5.25/unknown"		/ **/
+/*#define SITEARCH_EXP "/usr/local/lib/perl5/5.25/unknown"		/ **/
 
 /* SITELIB:
  *	This symbol contains the name of the private library for this package.
@@ -1493,8 +1493,8 @@
  *	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 "/usr/local/lib/perl5/5.26"		/**/
-#define SITELIB_EXP "/usr/local/lib/perl5/5.26"		/**/
+#define SITELIB "/usr/local/lib/perl5/5.25"		/**/
+#define SITELIB_EXP "/usr/local/lib/perl5/5.25"		/**/
 #define SITELIB_STEM "/usr/local/lib/perl5"		/**/
 
 /* PERL_VENDORARCH:
diff --git a/uconfig.sh b/uconfig.sh
index fb72d5c8c8..177cf520f2 100644
--- a/uconfig.sh
+++ b/uconfig.sh
@@ -6,8 +6,8 @@ afs='false'
 afsroot='/afs'
 alignbytes='4'
 aphostname='/bin/hostname'
-archlib='/usr/local/lib/perl5/5.26/unknown'
-archlibexp='/usr/local/lib/perl5/5.26/unknown'
+archlib='/usr/local/lib/perl5/5.25/unknown'
+archlibexp='/usr/local/lib/perl5/5.25/unknown'
 archname='unknown'
 asctime_r_proto='0'
 bin='/usr/local/bin'
@@ -782,8 +782,8 @@ package='perl5'
 perl_static_inline='static'
 phostname='hostname'
 pidtype=int
-privlib='/usr/local/lib/perl5/5.26'
-privlibexp='/usr/local/lib/perl5/5.26'
+privlib='/usr/local/lib/perl5/5.25'
+privlibexp='/usr/local/lib/perl5/5.25'
 procselfexe=''
 prototype='undef'
 ptrsize='4'
@@ -833,11 +833,11 @@ sig_name_init='0'
 sig_num_init='0'
 sig_size='1'
 signal_t=int
-sitearch='/usr/local/lib/perl5/5.26/unknown'
-sitearchexp='/usr/local/lib/perl5/5.26/unknown'
-sitelib='/usr/local/lib/perl5/5.26'
+sitearch='/usr/local/lib/perl5/5.25/unknown'
+sitearchexp='/usr/local/lib/perl5/5.25/unknown'
+sitelib='/usr/local/lib/perl5/5.25'
 sitelib_stem='/usr/local/lib/perl5'
-sitelibexp='/usr/local/lib/perl5/5.26'
+sitelibexp='/usr/local/lib/perl5/5.25'
 sizesize=4
 sizetype='size_t'
 socksizetype='int'
diff --git a/uconfig64.sh b/uconfig64.sh
index 5021e98b91..6655ea072b 100644
--- a/uconfig64.sh
+++ b/uconfig64.sh
@@ -7,8 +7,8 @@ afsroot='/afs'
 alignbytes='8'
 ansi2knr=''
 aphostname='/bin/hostname'
-archlib='/usr/local/lib/perl5/5.26/unknown'
-archlibexp='/usr/local/lib/perl5/5.26/unknown'
+archlib='/usr/local/lib/perl5/5.25/unknown'
+archlibexp='/usr/local/lib/perl5/5.25/unknown'
 archname='unknown64'
 asctime_r_proto='0'
 bin='/usr/local/bin'
@@ -783,8 +783,8 @@ package='perl5'
 perl_static_inline='static'
 phostname='hostname'
 pidtype=int
-privlib='/usr/local/lib/perl5/5.26'
-privlibexp='/usr/local/lib/perl5/5.26'
+privlib='/usr/local/lib/perl5/5.25'
+privlibexp='/usr/local/lib/perl5/5.25'
 procselfexe=''
 prototype='undef'
 ptrsize='8'
@@ -834,11 +834,11 @@ sig_name_init='0'
 sig_num_init='0'
 sig_size='1'
 signal_t=int
-sitearch='/usr/local/lib/perl5/5.26/unknown'
-sitearchexp='/usr/local/lib/perl5/5.26/unknown'
-sitelib='/usr/local/lib/perl5/5.26'
+sitearch='/usr/local/lib/perl5/5.25/unknown'
+sitearchexp='/usr/local/lib/perl5/5.25/unknown'
+sitelib='/usr/local/lib/perl5/5.25'
 sitelib_stem='/usr/local/lib/perl5'
-sitelibexp='/usr/local/lib/perl5/5.26'
+sitelibexp='/usr/local/lib/perl5/5.25'
 sizesize=4
 sizetype='size_t'
 socksizetype='int'
diff --git a/win32/GNUmakefile b/win32/GNUmakefile
index f29cbae446..ce8d615b06 100644
--- a/win32/GNUmakefile
+++ b/win32/GNUmakefile
@@ -6,7 +6,7 @@
 #	Windows SDK 64-bit compiler and tools
 #
 # This is set up to build a perl.exe that runs off a shared library
-# (perl526.dll).  Also makes individual DLLs for the XS extensions.
+# (perl525.dll).  Also makes individual DLLs for the XS extensions.
 #
 # The easiest way to customize the build process is to use parameters like this:
 #
@@ -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	:= \5.26.0
+#INST_VER	:= \5.25.12
 
 #
 # Comment this out if you DON'T want your perl installation to have
@@ -227,7 +227,7 @@ DEFAULT_INC_EXCLUDES_DOT := define
 # set this to additionally provide a statically linked perl-static.exe.
 # Note that dynamic loading will not work with this perl, so you must
 # include required modules statically using the STATIC_EXT or ALL_STATIC
-# variables below. A static library perl526s.lib will also be created.
+# variables below. A static library perl525s.lib will also be created.
 # Ordinary perl.exe is not affected by this option.
 #
 #BUILD_STATIC	:= define
@@ -926,9 +926,9 @@ ifeq ($(CCTYPE),GCC)
 
 CFGSH_TMPL	= config.gc
 CFGH_TMPL	= config_H.gc
-PERLIMPLIB	= $(COREDIR)\libperl526$(a)
-PERLIMPLIBBASE	= libperl526$(a)
-PERLSTATICLIB	= ..\libperl526s$(a)
+PERLIMPLIB	= $(COREDIR)\libperl525$(a)
+PERLIMPLIBBASE	= libperl525$(a)
+PERLSTATICLIB	= ..\libperl525s$(a)
 INT64		= long long
 
 else
@@ -941,11 +941,11 @@ endif
 
 # makedef.pl must be updated if this changes, and this should normally
 # only change when there is an incompatible revision of the public API.
-PERLIMPLIB	?= $(COREDIR)\perl526$(a)
-PERLIMPLIBBASE	?= perl526$(a)
-PERLEXPLIB	?= $(COREDIR)\perl526.exp
-PERLSTATICLIB	?= ..\perl526s$(a)
-PERLDLL		= ..\perl526.dll
+PERLIMPLIB	?= $(COREDIR)\perl525$(a)
+PERLIMPLIBBASE	?= perl525$(a)
+PERLEXPLIB	?= $(COREDIR)\perl525.exp
+PERLSTATICLIB	?= ..\perl525s$(a)
+PERLDLL		= ..\perl525.dll
 
 # don't let "gmake -n all" try to run "miniperl.exe make_ext.pl"
 PLMAKE		= gmake
diff --git a/win32/Makefile b/win32/Makefile
index 04229333ad..19d1437c50 100644
--- a/win32/Makefile
+++ b/win32/Makefile
@@ -5,7 +5,7 @@
 #	Windows SDK 64-bit compiler and tools
 #
 # This is set up to build a perl.exe that runs off a shared library
-# (perl526.dll).  Also makes individual DLLs for the XS extensions.
+# (perl525.dll).  Also makes individual DLLs for the XS extensions.
 #
 
 ##
@@ -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	= \5.26.0
+#INST_VER	= \5.25.12
 
 #
 # Comment this out if you DON'T want your perl installation to have
@@ -202,7 +202,7 @@ CCTYPE		= MSVC60
 # set this to additionally provide a statically linked perl-static.exe.
 # Note that dynamic loading will not work with this perl, so you must
 # include required modules statically using the STATIC_EXT or ALL_STATIC
-# variables below. A static library perl526s.lib will also be created.
+# variables below. A static library perl525s.lib will also be created.
 # Ordinary perl.exe is not affected by this option.
 #
 #BUILD_STATIC	= define
@@ -665,9 +665,9 @@ $(o).dll:
 
 # makedef.pl must be updated if this changes, and this should normally
 # only change when there is an incompatible revision of the public API.
-PERLIMPLIB	= ..\perl526.lib
-PERLSTATICLIB	= ..\perl526s.lib
-PERLDLL		= ..\perl526.dll
+PERLIMPLIB	= ..\perl525.lib
+PERLSTATICLIB	= ..\perl525s.lib
+PERLDLL		= ..\perl525.dll
 
 MINIPERL	= ..\miniperl.exe
 MINIDIR		= .\mini
diff --git a/win32/Makefile.ce b/win32/Makefile.ce
index 03168c99e8..38419a59a5 100644
--- a/win32/Makefile.ce
+++ b/win32/Makefile.ce
@@ -5,7 +5,7 @@
 #
 
 SRCDIR     = ..
-PV         = 526
+PV         = 525
 
 # INSTALL_ROOT specifies a path where this perl will be installed on CE device
 INSTALL_ROOT=/netzwerk/sprache/perl
diff --git a/win32/makefile.mk b/win32/makefile.mk
index 062b9be8fe..71947b5670 100644
--- a/win32/makefile.mk
+++ b/win32/makefile.mk
@@ -6,7 +6,7 @@
 #	Windows SDK 64-bit compiler and tools
 #
 # This is set up to build a perl.exe that runs off a shared library
-# (perl526.dll).  Also makes individual DLLs for the XS extensions.
+# (perl525.dll).  Also makes individual DLLs for the XS extensions.
 #
 
 ##
@@ -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	*= \5.26.0
+#INST_VER	*= \5.25.12
 
 #
 # Comment this out if you DON'T want your perl installation to have
@@ -222,7 +222,7 @@ DEFAULT_INC_EXCLUDES_DOT *= define
 # set this to additionally provide a statically linked perl-static.exe.
 # Note that dynamic loading will not work with this perl, so you must
 # include required modules statically using the STATIC_EXT or ALL_STATIC
-# variables below. A static library perl526s.lib will also be created.
+# variables below. A static library perl525s.lib will also be created.
 # Ordinary perl.exe is not affected by this option.
 #
 #BUILD_STATIC	*= define
@@ -897,8 +897,8 @@ UTILS		=			\
 
 CFGSH_TMPL	= config.gc
 CFGH_TMPL	= config_H.gc
-PERLIMPLIB	= $(COREDIR)\libperl526$(a)
-PERLSTATICLIB	= ..\libperl526s$(a)
+PERLIMPLIB	= $(COREDIR)\libperl525$(a)
+PERLSTATICLIB	= ..\libperl525s$(a)
 INT64		= long long
 
 .ELSE
@@ -911,10 +911,10 @@ INT64		= __int64
 
 # makedef.pl must be updated if this changes, and this should normally
 # only change when there is an incompatible revision of the public API.
-PERLIMPLIB	*= $(COREDIR)\perl526$(a)
-PERLEXPLIB	*= $(COREDIR)\perl526.exp
-PERLSTATICLIB	*= ..\perl526s$(a)
-PERLDLL		= ..\perl526.dll
+PERLIMPLIB	*= $(COREDIR)\perl525$(a)
+PERLEXPLIB	*= $(COREDIR)\perl525.exp
+PERLSTATICLIB	*= ..\perl525s$(a)
+PERLDLL		= ..\perl525.dll
 
 #EUMM on Win32 isn't ready for parallel make, so only allow this file to be parallel
 #$(MAKE) will contain the -P that this makefile was called with, which is bad for