Set header-set to beta.



git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@520 4407c894-4637-0410-b4f5-ada5f102cad1
diff --git a/mingw-w64-headers/include/_mingw.h b/mingw-w64-headers/include/_mingw.h
index 4f97d95..4f84a66 100644
--- a/mingw-w64-headers/include/_mingw.h
+++ b/mingw-w64-headers/include/_mingw.h
@@ -12,7 +12,7 @@
 #define MINGW64_VERSION	1.0
 #define MINGW64_VERSION_MAJOR	1
 #define MINGW64_VERSION_MINOR	0
-#define MINGW64_VERSION_STATE	"alpha"
+#define MINGW64_VERSION_STATE	"beta"
 #endif
 
 #ifdef _WIN64