Start calling it 1.5b2
diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index 41e400a..a9fe70a 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -1 +1 @@
-#define PATCHLEVEL "1.5b1"
+#define PATCHLEVEL "1.5b2"