change the log

CHANGES_en.md

 # Change Log
 
+### 2.16.2 - 2022-09-13
+
+#### Additions 🎉
+
+- Open some Cesium native classes
+
+#### Fixes 🔧
+
+- Improve the scene export 
+- Improve terrain loading [#126](https://github.com/dvgis/dc-sdk/issues/126)
+
 ### 2.16.1 - 2022-08-21
 
 #### Additions 🎉

CHANGES_zh.md

 # Change Log
 
+### 2.16.2 - 2022-09-13
+
+#### Additions 🎉
+
+- 开放部分Cesium原生类
+
+#### Fixes 🔧
+
+- 优化场景导出功能
+- 优化地形加载功能[#126](https://github.com/dvgis/dc-sdk/issues/126)
+
 ### 2.16.1 - 2022-08-21
 
 #### Additions 🎉