diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 1d8c8f18..fe235dce 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -5,6 +5,8 @@
 **Changed**
 
 - refactor: replace with open file handler, avoid reading files into memory
+- refactor: rename plugin to extension, httprunner/plugins -> httprunner/ext
+- docs: update installation doc for developers
 
 ## 2.4.1 (2019-12-12)