diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index e69de29b..f77cea3f 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -0,0 +1,5 @@
+* Add tests for HL7 WG rule only applying in publication mode and update other tests 
+* Add tests for validating filter values in value sets
+* Update tests for fixing bug in error caching doing Bundle resolution
+* Fix references to wrong value set in supplement tests
+* Update for fixed message in validator
diff --git a/tx/history.md b/tx/history.md
index 88f2050b..705597f5 100644
--- a/tx/history.md
+++ b/tx/history.md
@@ -5,7 +5,7 @@ note that the github repository that contains these tests contains many other te
 kind of functionality. This history file only contains entries for github releases that include 
 changes to the terminology tests.
 
-## 1.6.x
+## 1.6.6
 
 * Fix references to wrong value set in supplement tests