Set the patch level to 1.5.
diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index a9fe70a..ce4ea1b 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -1 +1 @@
-#define PATCHLEVEL "1.5b2"
+#define PATCHLEVEL "1.5"