BFA Update (still lots of testing to do tho)

Source/Game/Network/Packets/AuthenticationPackets.cs

@@ -78,8 +78,6 @@ namespace Game.Network.Packets
         public override void Read()
         {
             DosResponse = _worldPacket.ReadUInt64();
-            Build = _worldPacket.ReadUInt16();
-            BuildType = _worldPacket.ReadInt8();
             RegionID = _worldPacket.ReadUInt32();
             BattlegroupID = _worldPacket.ReadUInt32();
             RealmID = _worldPacket.ReadUInt32();
@@ -95,8 +93,6 @@ namespace Game.Network.Packets
                 RealmJoinTicket = _worldPacket.ReadString(realmJoinTicketSize);
         }
 
-        public ushort Build;
-        public sbyte BuildType;
         public uint RegionID;
         public uint BattlegroupID;
         public uint RealmID;
@@ -145,6 +141,7 @@ namespace Game.Network.Packets
                 _worldPacket.WriteBit(SuccessInfo.Value.ForceCharacterTemplate);
                 _worldPacket.WriteBit(SuccessInfo.Value.NumPlayersHorde.HasValue);
                 _worldPacket.WriteBit(SuccessInfo.Value.NumPlayersAlliance.HasValue);
+                _worldPacket.WriteBit(SuccessInfo.Value.ExpansionTrialExpiration.HasValue);
                 _worldPacket.FlushBits();
 
                 {
@@ -164,6 +161,9 @@ namespace Game.Network.Packets
                 if (SuccessInfo.Value.NumPlayersAlliance.HasValue)
                     _worldPacket.WriteUInt16(SuccessInfo.Value.NumPlayersAlliance.Value);
 
+                if(SuccessInfo.Value.ExpansionTrialExpiration.HasValue)
+                    _worldPacket.WriteInt32(SuccessInfo.Value.ExpansionTrialExpiration.Value);
+
                 foreach (VirtualRealmInfo virtualRealm in SuccessInfo.Value.VirtualRealms)
                     virtualRealm.Write(_worldPacket);
 
@@ -216,6 +216,7 @@ namespace Game.Network.Packets
             public bool ForceCharacterTemplate; // forces the client to always use a character template when creating a new character. @see Templates. @todo implement
             public Optional<ushort> NumPlayersHorde; // number of horde players in this realm. @todo implement
             public Optional<ushort> NumPlayersAlliance; // number of alliance players in this realm. @todo implement
+            public Optional<int> ExpansionTrialExpiration; // expansion trial expiration unix timestamp
 
             public struct BillingInfo
             {