diff --git a/Mkfiles/dj/config.h b/Mkfiles/dj/config.h
index 0400cc1..2bbcdf2 100644
--- a/Mkfiles/dj/config.h
+++ b/Mkfiles/dj/config.h
@@ -294,13 +294,13 @@
 #define PACKAGE_NAME "yasm"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "yasm HEAD"
+#define PACKAGE_STRING "yasm 0.5.0rc1"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "yasm"
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "HEAD"
+#define PACKAGE_VERSION "0.5.0rc1"
 
 /* Define if the C compiler supports function prototypes. */
 #define PROTOTYPES 1
@@ -312,7 +312,7 @@
 /* #undef USE_FORKWAITMSG */
 
 /* Version number of package */
-#define VERSION "HEAD"
+#define VERSION "0.5.0rc1"
 
 /* Define if using the dmalloc debugging malloc package */
 /* #undef WITH_DMALLOC */
diff --git a/Mkfiles/vc/config.h b/Mkfiles/vc/config.h
index ad3d2b0..151397f 100644
--- a/Mkfiles/vc/config.h
+++ b/Mkfiles/vc/config.h
@@ -299,13 +299,13 @@
 #define PACKAGE_NAME "yasm"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "yasm HEAD"
+#define PACKAGE_STRING "yasm 0.5.0rc1"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "yasm"
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "HEAD"
+#define PACKAGE_VERSION "0.5.0rc1"
 
 /* Define if the C compiler supports function prototypes. */
 #define PROTOTYPES 1
@@ -317,7 +317,7 @@
 /* #undef USE_FORKWAITMSG */
 
 /* Version number of package */
-#define VERSION "HEAD"
+#define VERSION "0.5.0rc1"
 
 /* Define if using the dmalloc debugging malloc package */
 /* #undef WITH_DMALLOC */
diff --git a/Mkfiles/vc8/config.h b/Mkfiles/vc8/config.h
index 02e28e4..61fb951 100644
--- a/Mkfiles/vc8/config.h
+++ b/Mkfiles/vc8/config.h
@@ -299,13 +299,13 @@
 #define PACKAGE_NAME "yasm"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "yasm HEAD"
+#define PACKAGE_STRING "yasm 0.5.0rc1"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "yasm"
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "HEAD"
+#define PACKAGE_VERSION "0.5.0rc1"
 
 /* Define if the C compiler supports function prototypes. */
 #define PROTOTYPES 1
@@ -317,7 +317,7 @@
 /* #undef USE_FORKWAITMSG */
 
 /* Version number of package */
-#define VERSION "HEAD"
+#define VERSION "0.5.0rc1"
 
 /* Define if using the dmalloc debugging malloc package */
 /* #undef WITH_DMALLOC */
diff --git a/configure.ac b/configure.ac
index cdf977e..230d990 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,7 +10,7 @@
 AC_CONFIG_AUX_DIR(config)
 AM_CONFIG_HEADER([config.h])
 
-AM_INIT_AUTOMAKE(yasm, [HEAD])
+AM_INIT_AUTOMAKE(yasm, [0.5.0rc1])
 AM_MAINTAINER_MODE
 
 #