diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index f3ef43e73f..1dfc3f00ac 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -10,6 +10,7 @@ Changelog
  * Remove support for IE6 to IE9 from project template (Samir Shah)
  * Remove outdated X-UA-Compatible meta from admin template  (Thibaud Colas)
  * Add JavaScript source maps in production build for packaged Wagtail (Thibaud Colas)
+ * Removed `assert` statements from Wagtail API (Kim Chee Leong)
  * Fix: Status button on 'edit page' now links to the correct URL when live and draft slug differ (LB (Ben Johnston))
  * Fix: Image title text in the gallery and in the chooser now wraps for long filenames (LB (Ben Johnston), Luiz Boaretto)
  * Fix: Move image editor action buttons to the bottom of the form on mobile (Julian Gallo)
diff --git a/CONTRIBUTORS.rst b/CONTRIBUTORS.rst
index 1569b7a6f6..5323274759 100644
--- a/CONTRIBUTORS.rst
+++ b/CONTRIBUTORS.rst
@@ -282,6 +282,7 @@ Contributors
 * Sebastian Brestin
 * Casper Timmers
 * Kevin Chung
+* Kim Chee Leong
 
 Translators
 ===========
diff --git a/docs/releases/2.1.rst b/docs/releases/2.1.rst
index 9177afa724..90b29ed204 100644
--- a/docs/releases/2.1.rst
+++ b/docs/releases/2.1.rst
@@ -20,6 +20,7 @@ Other features
 * Remove support for IE6 to IE9 from project template (Samir Shah)
 * Remove outdated X-UA-Compatible meta from admin template  (Thibaud Colas)
 * Add JavaScript source maps in production build for packaged Wagtail (Thibaud Colas)
+* Removed ``assert`` statements from Wagtail API (Kim Chee Leong)
 
 Bug fixes
 ~~~~~~~~~