diff --git a/source/core/version.h b/source/core/version.h
index c8a5949a0..440be91c8 100644
--- a/source/core/version.h
+++ b/source/core/version.h
@@ -41,7 +41,7 @@ const char *GetVersionString();
 
 /** Lots of different version numbers **/
 
-#define VERSIONSTR "1.0.0-pre"
+#define VERSIONSTR "0.10.0-preview"
 
 // The version as seen in the Windows resource
 #define RC_FILEVERSION 0,9,0,0