diff --git a/CHANGES.md b/CHANGES.md
index 70242c6fa8c4..f050283b1b25 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,10 @@
+next
+----
+
+- Record instrumentation backends in dune-package files.  This makes it possible
+  to use instrumentation backends defined in installed libraries (eg via
+  OPAM). (#3735, @nojb)
+
 2.7.0 (13/08/2020)
 ------------------