diff --git a/CHANGELOG.md b/CHANGELOG.md
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@@ -4,4 +4,15 @@
 Initial commit, esp-who appear in the world.
 - Elementry functions such as image processing and matrix computing
 - Face detection
-- Components such as camera
\ No newline at end of file
+- Components such as camera
+
+## 0.1.1
+Open coefficients for facial detection
+- Provide interface to generate customized coefficients via `mkmodel` (temporally support linux only, other os coming soon)
+
+## 0.5.0
+Face recognition framework
+- Add face recognition relative framework
+- Provide basic face recognition example
+- Move `esp_facenet` to `esp-face` as submodule
+- Add some documents for API reference and guide