diff --git a/CHANGES.md b/CHANGES.md
index c5323b39591e..f285729889a3 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -8,6 +8,7 @@ Change Log
 * Added `TimeDynamicPointCloud` for playback of time-dynamic point cloud data, where each frame is a 3D Tiles Point Cloud tile. [#6721](https://github.com/AnalyticalGraphicsInc/cesium/pull/6721)
 * Added `CoplanarPolygonGeometry` and `CoplanarPolygonGeometryOutline` for drawing polygons composed of coplanar positions that are not necessarily on the ellipsoid surface. [#6769](https://github.com/AnalyticalGraphicsInc/cesium/pull/6769)
 * Improved support for polygon entities using `perPositionHeight`, including supporting vertical polygons.  This also improves KML compatibility. [#6791](https://github.com/AnalyticalGraphicsInc/cesium/pull/6791)
+* Added `equalsEpsilon` methods to `OrthographicFrustum`, `PerspectiveFrustum`, `OrthographicOffCenterFrustum` and `PerspectiveOffCenterFrustum`.
 
 ##### Deprecated :hourglass_flowing_sand:
 * Support for 3D Tiles `content.url` is deprecated to reflect updates to the [3D Tiles spec](https://github.com/AnalyticalGraphicsInc/3d-tiles/pull/301). Use `content.uri instead`. Support for `content.url` will remain for backwards compatibility. [#6744](https://github.com/AnalyticalGraphicsInc/cesium/pull/6744)