diff --git a/doc/releasenotes.md b/doc/releasenotes.md
index fea2f667a657d9bc68b84e36e34a070bae1ae340..e6f48ce9b8731d4b8b52d749d3d03febd6b40586 100644
--- a/doc/releasenotes.md
+++ b/doc/releasenotes.md
@@ -31,6 +31,7 @@ The NGINX configuration now uses maps to handle policies, errors, services, and
 - **setuptools** python library updated to version 80.9.0 due to a security issue detected.
 - **protobuf-python** library hasta potential rick with DEnial of Service issue.
 - **OpenSSL in Cryptography wheels** vulnerability solved.
+- **Denial of Service via Missing HTTP Header Validation** vulnerability solved.
 
 #### **Fixed Security Service**
 
@@ -75,6 +76,7 @@ The Helper service now supports dynamic packages, enabling new services to be ad
 - New section [How to Deploy Using Helm] created. This section includes a guide of how to use helm scripts to deploy all components (including OpenCAPIF) on a k8s environment.
 - Change "How to Run" section name to [How to Run locally].
 - New section called [Download Repository] included in documentation.
+- New section called [Certificate Generation Architecture]
 
 ## **Release 3.0.0**
 
@@ -510,4 +512,5 @@ This Release also includes a Robot Test Suite for all those services and a Postm
 
 [How to Deploy Using Helm]: ./gettingstarted/howtodeploy.md  "How to Deploy Using Helm"
 [Download Repository]: ./gettingstarted/download.md  "Download Repository"
-[How to Run Locally]: ./gettingstarted/howtorun.md  "How to Run Locally"
\ No newline at end of file
+[How to Run Locally]: ./gettingstarted/howtorun.md  "How to Run Locally"
+[Certificate Generation Architecture]: ./vault/vault.md "Certificate Generation Architecture"