diff --git a/Changelog.md b/Changelog.md
index 62622a3..4e7e14f 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -6,6 +6,7 @@
 - Fix bug which prevented fragments from being stepped through with the up/down arrows
 - Navigating back to a vertical stack now maintains the previously selected vertical slide
 - Vertical slides are counted towards the progress bar
+- Added postmessage plugin
 
 #### 2.1 ([download](https://github.com/downloads/hakimel/reveal.js/reveal.js-2.1.zip)) - 10-11-2012
 - Primary styles moved from main.css to reveal.css