diff --git a/src/main/java/kst4contest/controller/ChatController.java b/src/main/java/kst4contest/controller/ChatController.java
index 94a1a4f8..dfe9fa17 100644
--- a/src/main/java/kst4contest/controller/ChatController.java
+++ b/src/main/java/kst4contest/controller/ChatController.java
@@ -1643,7 +1643,7 @@ public class ChatController implements ThreadStatusCallback, PstRotatorEventList
 //	private String hostname = "109.90.0.130";
     private String hostname;
 //	private String praktiKSTVersion = "praktiKST 1.0";
-	private String praktiKSTVersionInfo = "2022-10 - 2022-12\ndeveloped by DO5AMF, Marc\nContact: praktimarc@gmail.com\nDonations via paypal are welcome";
+	private String praktiKSTVersionInfo = "2022-10 - 2022-12\ndeveloped by DO5AMF, Marc and DN9APW, Philipp Wagner\nContact: praktimarc@gmail.com\nDonations via paypal are welcome";
 
 	private int port = 23001; // kst4contest.test 4 23001 //TODO: auslagern in Chatprefs
 	private ReadUDPbyUCXMessageThread readUDPbyUCXThread;
diff --git a/src/main/java/kst4contest/model/ChatPreferences.java b/src/main/java/kst4contest/model/ChatPreferences.java
index e1d8dc45..5bcf7ad5 100644
--- a/src/main/java/kst4contest/model/ChatPreferences.java
+++ b/src/main/java/kst4contest/model/ChatPreferences.java
@@ -148,7 +148,7 @@ public class ChatPreferences {
 	 *
 	 */
 
-	String programVersion = "Chat is powered by ON4KST \n\nUsage is free. You are welcome to support: \n\n- my project (donations, bugreports, good ideas are welcome), \n- ON4KST Servers, \n- AirScout developers and \n- OV3T (best AS-data provider of the world). \n\n73 de DO5AMF, Marc (DM5M / DARC X08)";
+	String programVersion = "Chat is powered by ON4KST \n\nUsage is free. You are welcome to support: \n\n- my project (donations, bugreports, good ideas are welcome), \n- ON4KST Servers, \n- AirScout developers and \n- OV3T (best AS-data provider of the world). \n\n73 de DO5AMF, Marc (DM5M / DARC X08)\nand DN9APW, Philipp Wagner";
 	String logsynch_storeWorkedCallSignsFileNameUDPMessageBackup = "udpReaderBackup.txt";
 	String storeAndRestorePreferencesFileName = ApplicationFileUtils.getFilePath(ApplicationConstants.APPLICATION_NAME, PREFERENCES_FILE);
 	String chatState; // working variable only for use by primarystage (title bar)
diff --git a/src/main/java/kst4contest/view/Kst4ContestApplication.java b/src/main/java/kst4contest/view/Kst4ContestApplication.java
index 72be7673..91debdc6 100644
--- a/src/main/java/kst4contest/view/Kst4ContestApplication.java
+++ b/src/main/java/kst4contest/view/Kst4ContestApplication.java
@@ -5753,7 +5753,8 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 				Alert a = new Alert(AlertType.INFORMATION);
 
 				a.setTitle("About kst4contest");
-				a.setHeaderText("kst4Contest " + ApplicationConstants.APPLICATION_CURRENT_VERSION + ": ON4KST Chatclient by DO5AMF");
+				a.setHeaderText("kst4Contest " + ApplicationConstants.APPLICATION_CURRENT_VERSION
+						+ ": ON4KST Chatclient by DO5AMF and DN9APW");
 				a.setContentText(chatcontroller.getChatPreferences().getProgramVersion());
 				a.show();
 			}