diff --git a/gcc/f/version.c b/gcc/f/version.c
index bb34ea3929e0f3b8e1629e606befe631f0db3a18..c1b03882038ec1c8ff1104ac81a6c5a8a53a88e1 100644
--- a/gcc/f/version.c
+++ b/gcc/f/version.c
@@ -1 +1 @@
-const char *const ffe_version_string = "0.5.27 20010922 (experimental)";
+const char *const ffe_version_string = "0.5.27 20010923 (experimental)";
diff --git a/gcc/version.c b/gcc/version.c
index 9dbe9c1dc8a0a4e34f827b3cbc5da70933b9328e..d851961ce33d94191eb01e8bd0087006a15c1b82 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 20010922 (experimental)";
+const char *const version_string = "3.1 20010923 (experimental)";
diff --git a/libf2c/libF77/Version.c b/libf2c/libF77/Version.c
index 35aa59ee003a8306f6fe8265bb202044dccb5d1a..793167f8ab615286b0d6c69e37c06a7a0929a525 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 20010922 (experimental)";
+char __G77_LIBF77_VERSION__[] = "0.5.27 20010923 (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 40611c4f70b6d8c52e277a853cd9e5637cbce75a..9347b63b804825105ce88ad62c5c81eaa22ea644 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 20010922 (experimental)";
+char __G77_LIBI77_VERSION__[] = "0.5.27 20010923 (experimental)";
 
 /*
 2.01	$ format added
diff --git a/libf2c/libU77/Version.c b/libf2c/libU77/Version.c
index 024999e5e3644c2ca8d537e39a162d27ee8cbd13..1c287478f2813be94172384a408b406e958e12d8 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 20010922 (experimental)";
+char __G77_LIBU77_VERSION__[] = "0.5.27 20010923 (experimental)";
 
 #include <stdio.h>
 
diff --git a/libstdc++-v3/include/bits/c++config b/libstdc++-v3/include/bits/c++config
index cfe23db49e16a34dd9ac78a90b75bb5296ea3948..7643d9cb604879daf6fb4c3a6cb0fe44d29b2696 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__ 20010922
+#define __GLIBCPP__ 20010923
 
 // This is necessary until GCC supports separate template
 // compilation.