diff --git a/Gazelle-HL7V2-Simulators/release-notes.md b/Gazelle-HL7V2-Simulators/release-notes.md
index 3d489a9579651e3f67334fbbf071cc51fd74916d..b3284dc0849069bd682c29d0169274dc5420e42d 100644
--- a/Gazelle-HL7V2-Simulators/release-notes.md
+++ b/Gazelle-HL7V2-Simulators/release-notes.md
@@ -25,3 +25,16 @@ _Release date: 2023-7-11_
 __Story__
 * \[[HLVSIM-1](https://gazelle.ihe.net/jira/browse/HLVSIM-1)\] Create Hl7V2 Simulators
 
+
+
+_Release date: $versionObj.releaseDate_
+# 1.2.1
+
+https://gazelle.ihe.net/jira/projects/HLVSIM/issues/HLVSIM-42?filter=allopenissues
+
+Remove ISO8859-1 ser ver and configuration
+Remove serverside colum for SUTConfiguration
+
+# Dependencies
+
+# Remarks
diff --git a/Gazelle-HL7V2-Simulators/user.md b/Gazelle-HL7V2-Simulators/user.md
index 0e9535b7f72fa4337d02334d5863fc3fa810a2f3..8a708a6b8b1b7991610795c2ac66ac740f1be5ac 100755
--- a/Gazelle-HL7V2-Simulators/user.md
+++ b/Gazelle-HL7V2-Simulators/user.md
@@ -95,10 +95,9 @@ It will display the list of Preference :
 
 All Preference available are gathered in the tool. You can either create, edit or delete one.
 
-Preferences enable to custom the working of the application there are 5 things that can be custom.
+Preferences enable to custom the working of the application there are 4 things that can be custom.
    Endpoint_Validator: The validation Endpoint to define which HL7 validator should be used.
    UTF8_Manager_Name, UTF8_Manager_Host, UTF8_Manager_Application, UTF8_Manager_Facility, UTF8_Manager_Port	:The configuration of the UTF-8 manager
-   I88591_Manager_Name, I88591_Manager_Host, I88591_Manager_Application, I88591_Manager_Facility, I88591_Manager_Port	:The configuration of the 8859-1 manager
    I885915_Manager_Name, I885915_Manager_Host, I885915_Manager_Application, I885915_Manager_Facility, I885915_Manager_Port	:The configuration of  the 8859-15 manager
    Creator_Name, Creator_Host ,Creator_Application , Creator_Port:The configuration of the creator
 
@@ -127,11 +126,11 @@ Once the message is sent the message history print messages who have been sent a
 
 ## Managers
 
-There is a manager for each charsets UTF-8, 8859-1 et 8859-15.
+There is a manager for each charsets: UTF-8 and 8859-15.
 Managers are easier to use because it's just a server that can be started/stopped.
 For replying ZAM managers must have all required ZAM templates. See TEMPLATE section for details.  
 For replying ZAM managers should also have the configuration SUT defined of the sender. Else managers cannot know where to send ZAM ( because ACK with HAPI is automatic).  
-For starting servers managers just go to the Manager GUI and press the start button.  
+For starting servers managers go to the Manager GUI and press the start button.  
 Once servers are started they will try to parse every incoming messages and reply ACK/NACK AND corresponding ZAM.
 
 ## Default Import