diff --git a/metagpt/actions/action.py b/metagpt/actions/action.py
index fd114b332..790295d55 100644
--- a/metagpt/actions/action.py
+++ b/metagpt/actions/action.py
@@ -4,7 +4,6 @@
 @Time    : 2023/5/11 14:43
 @Author  : alexanderwu
 @File    : action.py
-@Modified By: mashenquan, 2023-11-1. Add generic class-to-string and object-to-string conversion functionality.
 """
 import re
 from abc import ABC
diff --git a/metagpt/software_company.py b/metagpt/software_company.py
index 57bd5db19..354773444 100644
--- a/metagpt/software_company.py
+++ b/metagpt/software_company.py
@@ -5,9 +5,7 @@
 @Author  : alexanderwu
 @File    : software_company.py
 @Modified By: mashenquan, 2023-11-1. According to Chapter 2.2.1 and 2.2.2 of RFC 116:
-        1. Change the data type of the `cause_by` value in the `Message` to a string to support the new message
-            distribution feature.
-        2. Abandon the design of having `Environment` store all messages.
+        1. Abandon the design of having `Environment` store all messages.
 """
 from pydantic import BaseModel, Field