diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index f66110eae6791b005a71ff2fa88100054b3fbfe5..2b19967ab3902ef57a20e521d54b64905b430253 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,19 @@ This document contains the ``fslpy`` release history in reverse chronological
 order.
 
 
+1.6.0 (Under development)
+-------------------------
+
+
+* The :class:`.TriangleMesh` class now uses the ``trimesh`` library
+  (https://github.com/mikedh/trimesh) to perform ray-mesh intersections,
+  via a new :meth:`.TriangleMesh.rayIntersection` method.
+* Optional dependencies ``wxpython``, ``indexed_gzip``, ``trimesh``, and
+  ``rtree`` are now listed separately, so ``fslpy`` can be used without
+  them (although relevant functionality will be disabled).
+
+
+
 1.5.4 (Wednesday January 10th 2018)
 -----------------------------------