Update CHANGELOG-EE.md for 13.6.6-ee

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Update CHANGELOG-EE.md for 13.6.6-ee
381a331b · GitLab Release Tools Bot · 8eaa790b · 381a331b
Commit 381a331b authored 4 years ago by GitLab Release Tools Bot
--- a/CHANGELOG-EE.md
+++ b/CHANGELOG-EE.md
@@ -316,6 +316,14 @@ Please view this file on the master branch, on stable branches it's out of date.
 - Rename code coverage analytics sections. !49931
  
  
+## 13.6.6 (2021-02-01)
+
+### Security (2 changes)
+
+- Remove Kubernetes IP address from error messages returned in Threat Monitoring.
+- Sanitize XSS in Epic milestone due date.
+
+
 ## 13.6.5 (2021-01-13)
  
 - No changes.