diff --git a/CHANGELOG.md b/CHANGELOG.md
index d8f933fb5be20..8b891fbd96190 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 - [plug-in] added `languages.registerCodeLensProvider` Plug-in API
 - [core] `ctrl+alt+a` and `ctrl+alt+d` to switch tabs left/right
 - [core] added `theia.applicationName` to application `package.json` and improved window title
+- [plug-in] added ability to provide custom namespace for Plug-in API
 
 
 ## v0.3.16