diff --git a/RELEASENOTES-DEVELOPMENT.md b/RELEASENOTES-DEVELOPMENT.md
index b7fa332e..f9ac35a5 100644
--- a/RELEASENOTES-DEVELOPMENT.md
+++ b/RELEASENOTES-DEVELOPMENT.md
@@ -1,3 +1,14 @@
+Version 4.3.6-dev-9-gf7401ec7
+==
+**Docker Build Optimisation**
+Improve the Dockerfile build sequences as follows:
+1. Build each dependency in a separate stage, facilitating parallel builds.
+2. Define default value for ARGS, permitting easier local docker builds.
+3. Clone the specified branch only (depth), getting data faster.
+4. Copy files in a one-off command, reducing the amount of Docker layers created.
+
+Many thanks to [David Girón](https://github.com/duhow) for the [PR](https://github.com/mikebrady/shairport-sync/pull/1945).
+
 Version 4.3.6-dev-3-ge4d3c6f7
 ==
 **Bug Fix**