diff --git a/ChangeLog b/ChangeLog
index c8b7c0afe9..47dd37fec7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2010-05-19  Ulrich Drepper  <drepper@redhat.com>
+
+	* version.h: Update for 2.13 development version.
+
 2010-05-12  Andrew Stubbs  <ams@codesourcery.com>
 
 	* sysdeps/sh/sh4/fpu/feholdexcpt.c (feholdexcept): Really disable all
diff --git a/version.h b/version.h
index 02cc48871a..8d57545001 100644
--- a/version.h
+++ b/version.h
@@ -1,4 +1,4 @@
 /* This file just defines the current version number of libc.  */
 
-#define RELEASE "stable"
-#define VERSION "2.12"
+#define RELEASE "development"
+#define VERSION "2.12.90"