diff --git a/lib/src/main/java/de/kuschku/libquassel/protocol/primitive/serializer/MessageSerializer.kt b/lib/src/main/java/de/kuschku/libquassel/protocol/primitive/serializer/MessageSerializer.kt
index 115533fccd10596263b9b9937a27cb6788f3df5a..3445fb7ae1d9236bb36553e08a90bb7604679b43 100644
--- a/lib/src/main/java/de/kuschku/libquassel/protocol/primitive/serializer/MessageSerializer.kt
+++ b/lib/src/main/java/de/kuschku/libquassel/protocol/primitive/serializer/MessageSerializer.kt
@@ -29,8 +29,7 @@ import java.nio.ByteBuffer
 object MessageSerializer : Serializer<Message> {
   override fun serialize(buffer: ChainedByteBuffer, data: Message, features: QuasselFeatures) {
     SignedId64Serializer.serialize(buffer, data.messageId, features)
-    if (features.hasFeature(ExtendedFeature.LongMessageTime) ||
-        features.hasFeature(ExtendedFeature.LongTime))
+    if (features.hasFeature(ExtendedFeature.LongTime))
       LongSerializer.serialize(buffer, data.time.toEpochMilli(), features)
     else
       IntSerializer.serialize(buffer, data.time.epochSecond.toInt(), features)
@@ -50,8 +49,7 @@ object MessageSerializer : Serializer<Message> {
   override fun deserialize(buffer: ByteBuffer, features: QuasselFeatures): Message {
     return Message(
       messageId = SignedId64Serializer.deserialize(buffer, features),
-      time = if (features.hasFeature(ExtendedFeature.LongMessageTime) ||
-                 features.hasFeature(ExtendedFeature.LongTime))
+      time = if (features.hasFeature(ExtendedFeature.LongTime))
         Instant.ofEpochMilli(LongSerializer.deserialize(buffer, features))
       else
         Instant.ofEpochSecond(IntSerializer.deserialize(buffer, features).toLong()),
diff --git a/lib/src/main/java/de/kuschku/libquassel/quassel/ExtendedFeature.kt b/lib/src/main/java/de/kuschku/libquassel/quassel/ExtendedFeature.kt
index a61f6d2629100f57ef8ebb9ffc51b6a6a44bc355..d6f918de50b68a8cd38fd7c35b506450e1ab2737 100644
--- a/lib/src/main/java/de/kuschku/libquassel/quassel/ExtendedFeature.kt
+++ b/lib/src/main/java/de/kuschku/libquassel/quassel/ExtendedFeature.kt
@@ -49,13 +49,14 @@ enum class ExtendedFeature {
   ExtendedFeatures,
   /** Serialize message time as 64-bit */
   LongTime,
-  LongMessageTime,
   /** Real Name and Avatar URL in backlog */
   RichMessages,
   /** Backlogmanager supports filtering backlog by messagetype */
   BacklogFilterType,
   /** 64-bit IDs for messages */
-  LongMessageId;
+  LongMessageId,
+  /** CoreInfo dynamically updated using signals */
+  SyncedCoreInfo;
 
   companion object {
     private val map = values().associateBy(ExtendedFeature::name)