diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4fedc3d22..5a18a24bf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,8 @@
 * `TweenData` has a new optional argument `getActive` which, if given, sets the property value immediately on activation.
 * `TweenData.getActiveValue` is a new property function that, if not null, returns a value to immediately sets the property value to on activation.
 * `GetEaseFunction`, and by extension anything that uses it, such as setting the ease for a Tween, will now accept a variety of input strings as valid. You can now use lower-case, such as `back`, and omit the 'ease' part of the direction, such as `back.in` or `back.inout`.
+* The signature of `getStart` and `getEnd` custom property functions has changed to `(target, key, value, targetIndex, totalTargets, tween)`, previously it was just `(target, key, value)`. Custom functions don't need to change as the new arguments are in addition to those sent previously.
+* The signature of the LoadValue generator functions (such as `delay` and `repeat`) has changed to `(target, key, value, targetIndex, totalTargets, tween)` to match those of the custom property functions. If you used a custom generator function for your Tween configs you'll need to modify the signature to the new one. As a result the `
 
 ### New Features