diff --git a/doc/release.notes b/doc/release.notes
index 2a917fd64b8b93de9d35ac6aa5e1542d5ed8972a..e43a1c78211a821b807ff02dbaa80d21e7179f84 100644
--- a/doc/release.notes
+++ b/doc/release.notes
@@ -130,6 +130,9 @@ DD4hep  ----  Release Notes
 2015-11-23 F.Gaede
  - added glbal method DD4hep::versionString() 
 
+2015-11-13 S.Lu
+ -  Added a new AHcal Barrel segementation: TiledLayerGridXY, to be used e.g.  
+    for the ILD AHcal Barrel Sensitive layer segmentation design.
 
 2015-10-30 F.Gaede
  - fixed LCIOFileReader to use sequential reading mode