Update release-note.md

XDStar-Client/release-note.md

 ---
 title: Release note
 subtitle: XDStarClient
-toolversion: 2.5.5
-releasedate: 2020-06-15
+toolversion: 2.5.6
+releasedate: 2021-01-11
 author: Anne-Gaëlle BERGE
 function: Software Engineer
 customer: IHE Europe
 reference: KER1-RNO-IHE-XDSTARCLIENT
 ---
 
+# 2.5.6
+_Release date: 2021-01-11_
+
+__Bug__
+* \[[XDSTAR-759](https://gazelle.ihe.net/jira/browse/XDSTAR-759)\] Disbale the constraint "constraintSamePatientId" in the validator ASIP XDM ITI-32 
 
 
 # 2.5.5