Prepare release-note for Gazelle Security Suite

Gazelle-Security-Suite/release-note.md

 ---
 title: Release note
 subtitle: Gazelle Security Suite
-toolversion: 6.3.2
-releasedate: 2023-06-08
+toolversion: 7.0.0
+releasedate: 2023-12-01
 author: Anne-Gaëlle BERGE
 function: Software Engineer
 customer: IHE Europe
 reference: KER1-RNO-IHE-GSS
 ---
-#6.3.3
+# 7.0.0
+_Release date : 2023-12-01_
+
+__Task__
+* \[[GSS-593](https://gazelle.ihe.net/jira/browse/GSS-593)\] Integrate new sso-client-v7
+* \[[GSS-595](https://gazelle.ihe.net/jira/browse/GSS-595)\] Remove second CAS possibility
+
+__Improvement__
+* \[[GSS-594](https://gazelle.ihe.net/jira/browse/GSS-594)\] Display firstname and lastname instead of username.
+
+# 6.3.3
 _Release date : 2023-06-08_
 
 __Task__