diff --git a/phase4-lib/src/main/java/com/helger/phase4/dump/IAS4IncomingDumper.java b/phase4-lib/src/main/java/com/helger/phase4/dump/IAS4IncomingDumper.java
index e4dd62ea9..07232b9f4 100644
--- a/phase4-lib/src/main/java/com/helger/phase4/dump/IAS4IncomingDumper.java
+++ b/phase4-lib/src/main/java/com/helger/phase4/dump/IAS4IncomingDumper.java
@@ -24,6 +24,7 @@
 
 import com.helger.commons.http.HttpHeaderMap;
 import com.helger.phase4.messaging.IAS4IncomingMessageMetadata;
+import com.helger.phase4.v3.ChangeV3;
 
 /**
  * Interface for dumping incoming requests
@@ -64,6 +65,7 @@ OutputStream onNewRequest (@Nonnull IAS4IncomingMessageMetadata aMessageMetadata
    *        Message metadata. Never <code>null</code>.
    * @since v0.9.9
    */
+  @ChangeV3 ("Make non default; add caught exception as Nullable")
   default void onEndRequest (@Nonnull final IAS4IncomingMessageMetadata aMessageMetadata)
   {}
 }
diff --git a/phase4-lib/src/main/java/com/helger/phase4/dump/IAS4OutgoingDumper.java b/phase4-lib/src/main/java/com/helger/phase4/dump/IAS4OutgoingDumper.java
index 8e90298d4..5895df221 100644
--- a/phase4-lib/src/main/java/com/helger/phase4/dump/IAS4OutgoingDumper.java
+++ b/phase4-lib/src/main/java/com/helger/phase4/dump/IAS4OutgoingDumper.java
@@ -28,6 +28,7 @@
 import com.helger.phase4.messaging.EAS4MessageMode;
 import com.helger.phase4.messaging.IAS4IncomingMessageMetadata;
 import com.helger.phase4.servlet.IAS4MessageState;
+import com.helger.phase4.v3.ChangeV3;
 
 /**
  * Interface for dumping outgoing requests
@@ -95,6 +96,7 @@ OutputStream onBeginRequest (@Nonnull EAS4MessageMode eMsgMode,
    *        The AS4 message ID of the outgoing message. Neither
    *        <code>null</code> nor empty.
    */
+  @ChangeV3 ("Make non default")
   default void onEndRequest (@Nonnull final EAS4MessageMode eMsgMode,
                              @Nullable final IAS4IncomingMessageMetadata aMessageMetadata,
                              @Nullable final IAS4MessageState aState,