diff --git a/NEWS b/NEWS
index b889e66271b14..0e60cadf3a4a9 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,6 @@
 PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
-?? ??? 2013, PHP 5.4.21
+03 Oct 2013, PHP 5.4.21 RC1
 
 - Core:
   . Fixed bug #65322 (compile time errors won't trigger auto loading). (Nikita)
diff --git a/configure.in b/configure.in
index 30de2c3aaa803..a32fbdac8fc7b 100644
--- a/configure.in
+++ b/configure.in
@@ -120,7 +120,7 @@ int zend_sprintf(char *buffer, const char *format, ...);
 PHP_MAJOR_VERSION=5
 PHP_MINOR_VERSION=4
 PHP_RELEASE_VERSION=21
-PHP_EXTRA_VERSION="-dev"
+PHP_EXTRA_VERSION="RC1"
 PHP_VERSION="$PHP_MAJOR_VERSION.$PHP_MINOR_VERSION.$PHP_RELEASE_VERSION$PHP_EXTRA_VERSION"
 PHP_VERSION_ID=`expr [$]PHP_MAJOR_VERSION \* 10000 + [$]PHP_MINOR_VERSION \* 100 + [$]PHP_RELEASE_VERSION`
 
diff --git a/main/php_version.h b/main/php_version.h
index e30528ed51d00..deb63352633c5 100644
--- a/main/php_version.h
+++ b/main/php_version.h
@@ -3,6 +3,6 @@
 #define PHP_MAJOR_VERSION 5
 #define PHP_MINOR_VERSION 4
 #define PHP_RELEASE_VERSION 21
-#define PHP_EXTRA_VERSION "-dev"
-#define PHP_VERSION "5.4.21-dev"
+#define PHP_EXTRA_VERSION "RC1"
+#define PHP_VERSION "5.4.21RC1"
 #define PHP_VERSION_ID 50421