2 files changed, 2 insertions, 0 deletions
diff --git a/doc/changelog.md b/doc/changelog.md
index 907d003..8be3185 100644
--- a/doc/changelog.md
+++ b/doc/changelog.md
@@ -1,5 +1,6 @@
 # History
 
+* 2022/Dec/07 ver 6.68 support prefetchit{0,1}
 * 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
diff --git a/readme.txt b/readme.txt
index 6223653..ea5f91c 100644
--- a/readme.txt
+++ b/readme.txt
@@ -402,6 +402,7 @@ sample/{echo,hello}.bfは http://www.kmonos.net/alang/etc/brainfuck.php から
 -----------------------------------------------------------------------------
 ◎履歴
 
+2022/12/07 ver 6.68 prefetchit{0,1}サポート
 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