diff --git a/tools/ChangeLog.md b/tools/ChangeLog.md
index dd70e93..148f716 100644
--- a/tools/ChangeLog.md
+++ b/tools/ChangeLog.md
@@ -63,5 +63,8 @@
 * 0.5.9 - redo how references are managed.
 * 0.5.10 
   * further reference management refinement
+* 0.5.11
+  * further reference management tweaks & fixed support for abstract base class cloning.
+  
 
 N.B hibernate 6.6 does not like @embeddable amd @mapped-superclass - fixed in 6.6.1
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