updated for version 7.3.309
Problem:    Warnings for pointer types.
Solution:   Change PySliceObject to PyObject.
diff --git a/src/version.c b/src/version.c
index b2a1a85..ab54766 100644
--- a/src/version.c
+++ b/src/version.c
@@ -710,6 +710,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    309,
+/**/
     308,
 /**/
     307,