diff --git a/README.md b/README.md
index 72d7fc2c292b438b7be48a8f1ef0e1ab8da2ff65..3295fef705df14210b60dc3eb603b2bea88dcb45 100644
--- a/README.md
+++ b/README.md
@@ -68,15 +68,6 @@ make clean; make
 
 After the compilation is successful, the executable file  **NUCLEO-F767.hex**  is generated in the  **cortex-m7\_nucleo\_f767zi\_gcc/build**  directory. Burn the file to the corresponding board using STM32 ST-LINK Utility.
 
-## Change Log
-
-v1.0.1
-1. removed these KAL apis: `KalThreadGetInfo`,`KalDelayUs`,`KalTimerCreate`,`KalTimerStart`,`KalTimerChange`,`KalTimerStop`,`KalTimerDelete`,`KalTimerIsRunning`,`KalTickToMs`,`KalMsToTick`,`KalGetMemInfo`
-2. add some POSIX apis
-
-v1.0
-1. first release
-
 ## Repositories Involved<a name="section1371113476307"></a>
 
 [Kernel subsystem](https://gitee.com/openharmony/docs/blob/master/en/readme/kernel.md)
diff --git a/README_zh.md b/README_zh.md
index 255e947102da25e4c462bdd27650f0a0555c8d3e..f834d6e8ab7913cde0f5a8cb46cbf063dacb6085 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -118,15 +118,6 @@ LiteOS-M内核移植的具体开发板的工程由社区开发者提供，可以
 
         该仓包含OpenHarmony LiteOS-M内核移植支持`Nucleo-F767ZI`开发板的工程代码，支持Ninja、GCC、IAR等方式进行编译。
 
-## 修改日志
-
-v1.0.1
-1. 删除以下KAL接口: `KalThreadGetInfo`,`KalDelayUs`,`KalTimerCreate`,`KalTimerStart`,`KalTimerChange`,`KalTimerStop`,`KalTimerDelete`,`KalTimerIsRunning`,`KalTickToMs`,`KalMsToTick`,`KalGetMemInfo`
-2. 添加部分POSIX接口
-
-v1.0
-1. 首次发布
-
 ## 相关仓<a name="section1371113476307"></a>
 
 [内核子系统](https://gitee.com/openharmony/docs/blob/master/zh-cn/readme/%E5%86%85%E6%A0%B8%E5%AD%90%E7%B3%BB%E7%BB%9F.md)