diff --git a/gcc/f/version.c b/gcc/f/version.c
index c319501e7441c8598fdd8b6d5e599af0a93e6838..21760da0c7ae047fc5efa6e69b97fc3ccc787408 100644
--- a/gcc/f/version.c
+++ b/gcc/f/version.c
@@ -1 +1 @@
-const char *ffe_version_string = "0.5.27 20010911 (experimental)";
+const char *ffe_version_string = "0.5.27 20010912 (experimental)";
diff --git a/gcc/version.c b/gcc/version.c
index a6261d7643c8785faf412564a660b50f8cd7f852..5b88992a2d1dd5bf5990909bacc36e6324c9dc64 100644
--- a/gcc/version.c
+++ b/gcc/version.c
@@ -1,4 +1,4 @@
 #include "ansidecl.h"
 #include "version.h"
 
-const char *const version_string = "3.1 20010911 (experimental)";
+const char *const version_string = "3.1 20010912 (experimental)";
diff --git a/libf2c/libF77/Version.c b/libf2c/libF77/Version.c
index 91e828207aad89faec4d0d1e585439df316f650c..b8854f658ea9195e702295a25591c7404c10dd47 100644
--- a/libf2c/libF77/Version.c
+++ b/libf2c/libF77/Version.c
@@ -3,7 +3,7 @@ static char junk[] = "\n@(#)LIBF77 VERSION 20000929\n";
 /*
 */
 
-char __G77_LIBF77_VERSION__[] = "0.5.27 20010911 (experimental)";
+char __G77_LIBF77_VERSION__[] = "0.5.27 20010912 (experimental)";
 
 /*
 2.00	11 June 1980.  File version.c added to library.
diff --git a/libf2c/libI77/Version.c b/libf2c/libI77/Version.c
index 825082d355b3c23bfd65fe9be85e31ad6e8cc05e..b5b8a0b28ead625d7e014e1151a049ebbc46d9a0 100644
--- a/libf2c/libI77/Version.c
+++ b/libf2c/libI77/Version.c
@@ -3,7 +3,7 @@ static char junk[] = "\n@(#) LIBI77 VERSION pjw,dmg-mods 20001205\n";
 /*
 */
 
-char __G77_LIBI77_VERSION__[] = "0.5.27 20010911 (experimental)";
+char __G77_LIBI77_VERSION__[] = "0.5.27 20010912 (experimental)";
 
 /*
 2.01	$ format added
diff --git a/libf2c/libU77/Version.c b/libf2c/libU77/Version.c
index 933b9cd7f984f5581ef5aad1d80d485cf9b3b209..9c73be75328f4cdcf7250ea5b728a35b6434ac6e 100644
--- a/libf2c/libU77/Version.c
+++ b/libf2c/libU77/Version.c
@@ -1,6 +1,6 @@
 static char junk[] = "\n@(#) LIBU77 VERSION 19980709\n";
 
-char __G77_LIBU77_VERSION__[] = "0.5.27 20010911 (experimental)";
+char __G77_LIBU77_VERSION__[] = "0.5.27 20010912 (experimental)";
 
 #include <stdio.h>
 
diff --git a/libstdc++-v3/include/bits/c++config b/libstdc++-v3/include/bits/c++config
index 8666b93ecd20483c6d2309566e505c12421bd779..5032345ddc187aa1bb962af28497b5ee87b93243 100644
--- a/libstdc++-v3/include/bits/c++config
+++ b/libstdc++-v3/include/bits/c++config
@@ -36,7 +36,7 @@
 #include <bits/limits.h>
 
 // The current version of the C++ library in compressed ISO date format.
-#define __GLIBCPP__ 20010911
+#define __GLIBCPP__ 20010912
 
 // This is necessary until GCC supports separate template
 // compilation.