Merge branch 'RB-10.5' into RB-10.6

Author: johnhaddon

Changes

@@ -120,10 +120,17 @@ Breaking Changes
 - Removed support for `IECORE_RTLD_GLOBAL` environment variable.
 - SmoothSkinningData : Removed, along with all associated Ops and Parameters.
 
-10.5.x.x (relative to 10.5.15.4)
-=======
+10.5.x.x (relative to 10.5.16.0)
+========
+
+10.5.16.0 (relative to 10.5.15.4)
+=========
 
+Improvements
+------------
 
+- ShaderNetworkAlgo : Added render adaptor API, allowing just-in-time modifications to
+  ShaderNetworks during translation for rendering.
 
 10.5.15.4 (relative to 10.5.15.3)
 ========