New release note for hardening startup scripts

doc/releasenotes.md

@@ -9,6 +9,15 @@
     - These filters are specified in the ***eventFilters*** of the subscription if the ***Enhanced Event Report*** feature of the ***Supported Features*** is activated.
 - More detailed information about event filters can be found in [Event Filter].
 
+### **Technical Debt Solved**
+
+#### **Hardening on startup scripts for services interacting with Vault**
+
+The startup scripts of the ***Invoker Management Service***, ***Provider Management Service***, and ***Security Service*** have been improved to ensure reliability when the Vault service takes longer to become ready. These new scripts check responses from the Vault to ensure the returned information is valid before starting each service.
+
+This will also helps on the restart issue on k8s deployed OpenCAPIF.
+
+
 ## **Release 2.0.0**
 
 ### **New Features**