Tweak the version *string* to clarify that this isn't your father's 3.0a1. :-)
diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index 62a1312..53554aa 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -22,7 +22,7 @@
 #define PY_RELEASE_SERIAL	1
 
 /* Version as a string */
-#define PY_VERSION		"3.0a1"
+#define PY_VERSION		"3.0a1+"
 
 /* Subversion Revision number of this file (not of the repository) */
 #define PY_PATCHLEVEL_REVISION  "$Revision$"