diff --git a/changelog.txt b/changelog.txt
index fe61c99d..32fb6cc7 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -19,14 +19,15 @@ OPENSEADRAGON CHANGELOG
     * Button "onExit" changed to "exit"
     * Button "onFocus" changed to "focus"
     * Button "onBlur" changed to "blur"
-* Numerous improvements to fullPage/fullScreen (#256):
+* BREAKING CHANGE: Numerous improvements to fullPage/fullScreen (#256):
     * Retains zoom/pan position better when switching into and out of fullPage.
     * Retains scroll position when switching back out.
     * More resilient to styling variations on the page.
-    * BREAKING CHANGE: setFullPage no longer automatically engages fullScreen; there's now a separate setFullScreen.
-    * BREAKING CHANGE: 'fullpage' event is now 'full-page'.
-    * There is now a 'full-screen' event.
-    * There are now 'pre-full-page' and 'pre-full-screen' events that include a preventDefaultAction property you can set.
+    * setFullPage no longer automatically engages fullScreen; there's now a separate setFullScreen.
+    * 'fullpage' event is now 'full-page'.
+    * The `fullpage` property of the 'full-page' event is now `fullPage`.
+    * There is now a 'full-screen' event with a `fullScreen` property (true if it has gone to full screen).
+    * There are now 'pre-full-page' and 'pre-full-screen' events that include a `preventDefaultAction` property you can set in your handler to cancel. They also have `fullPage` and `fullScreen` properties respectively, to indicate if they are going into or out of the mode.
 * MouseTracker now passes the original event objects to its handler methods (#23)
 * MouseTracker now supports an optional 'moveHandler' method for tracking mousemove events (#215)
 * Added stopHandler to MouseTracker. (#262)