update code version

Jinyu Wang · Jinyu Wang · commit cc8bab19b007 · 2022-12-27T09:17:38.000Z
diff --git a/maro/__misc__.py b/maro/__misc__.py
@@ -2,6 +2,6 @@
 # Licensed under the MIT license.
 
 
-__version__ = "0.3.0a1"
+__version__ = "0.3.1a1"
 
 __data_version__ = "0.2"
