diff --git a/gcc/f/version.c b/gcc/f/version.c
index d97b6934ec930164f33f37bd0a520cbd61254078..53b3f8e758346e1bc3c7782c3e171710c1590382 100644
--- a/gcc/f/version.c
+++ b/gcc/f/version.c
@@ -1 +1 @@
-const char *ffe_version_string = "0.5.27 20010904 (experimental)";
+const char *ffe_version_string = "0.5.27 20010905 (experimental)";
diff --git a/gcc/version.c b/gcc/version.c
index 1508b301db7ef8eedac90e3b2503ef289002f0b0..5626bddfd234ac0945c9f987014e1a0b7e7c14e0 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 20010904 (experimental)";
+const char *const version_string = "3.1 20010905 (experimental)";
diff --git a/libf2c/libF77/Version.c b/libf2c/libF77/Version.c
index fbc598480a0f53e566c7d4523f96e8c7fca9072d..265f80c2453ffe3c3b08ff3f3d97317e38707b00 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 20010904 (experimental)";
+char __G77_LIBF77_VERSION__[] = "0.5.27 20010905 (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 51e24ae52b5dc75b2c6c649fd6ca8a391945c182..95e869a5f2b95766d38d0843d3463aa696255873 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 20010904 (experimental)";
+char __G77_LIBI77_VERSION__[] = "0.5.27 20010905 (experimental)";
 
 /*
 2.01	$ format added
diff --git a/libf2c/libU77/Version.c b/libf2c/libU77/Version.c
index 45af7e211c0a6658c245e7501b1845b91f85855f..078fd8a01e4fd723679787028963a4371fbcff0d 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 20010904 (experimental)";
+char __G77_LIBU77_VERSION__[] = "0.5.27 20010905 (experimental)";
 
 #include <stdio.h>
 
diff --git a/libstdc++-v3/include/bits/c++config b/libstdc++-v3/include/bits/c++config
index 471b4062354e573a7ea15f7f155f55020a9fc073..8011fa6090de9a37f5c469084b1ed4769231157d 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__ 20010904
+#define __GLIBCPP__ 20010905
 
 // This is necessary until GCC supports separate template
 // compilation.