diff --git a/Seekfree_TC264_Opensource_Library/libraries/doc/version.txt b/Seekfree_TC264_Opensource_Library/libraries/doc/version.txt
index 42c428a..494407a 100644
--- a/Seekfree_TC264_Opensource_Library/libraries/doc/version.txt
+++ b/Seekfree_TC264_Opensource_Library/libraries/doc/version.txt
@@ -1,3 +1,6 @@
+V3.3.5
+       新增660rb，合并660ra和660rb为660rx
+	   用户使用660rx库程序自动识别660ra和660rb
 V3.3.4
        优化“AURIX修改工程名称.bat”工具，使用更加便捷
 V3.3.3