diff --git a/doc/changelog.md b/doc/changelog.md
index 5e6fa9a..907d003 100644
--- a/doc/changelog.md
+++ b/doc/changelog.md
@@ -1,5 +1,6 @@
 # History
 
+* 2022/Nov/30 ver 6.67 support CMPccXADD
 * 2022/Nov/25 ver 6.66 support RAO-INT
 * 2022/Nov/22 ver 6.65 consider x32
 * 2022/Nov/04 ver 6.64 some vmov* support addressing with mask
diff --git a/readme.txt b/readme.txt
index ed1f2dd..9ae0402 100644
--- a/readme.txt
+++ b/readme.txt
@@ -402,6 +402,7 @@
 -----------------------------------------------------------------------------
 ◎履歴
 
+2022/11/30 ver 6.67 CMPccXADDサポート
 2022/11/25 ver 6.66 RAO-INTサポート
 2022/11/22 ver 6.65 x32動作確認
 2022/11/04 ver 6.64 vmov*命令をmaskつきアドレッシング対応修正