Added nick to PRESENCE_UPDATE

src/Discord.Net/API/Common/Presence.cs

@@ -8,11 +8,14 @@ namespace Discord.API
         public User User { get; set; }
         [JsonProperty("guild_id")]
         public Optional<ulong> GuildId { get; set; }
-        [JsonProperty("roles")]
-        public Optional<ulong[]> Roles { get; set; }
         [JsonProperty("status")]
         public UserStatus Status { get; set; }
         [JsonProperty("game")]
         public Game Game { get; set; }
+
+        [JsonProperty("roles")]
+        public Optional<ulong[]> Roles { get; set; }
+        [JsonProperty("nick")]
+        public Optional<string> Nick { get; set; }
     }
 }

src/Discord.Net/DiscordSocketClient.cs

@@ -853,7 +853,7 @@ namespace Discord
                                         else
                                         {
                                             guild.AddOrUpdatePresence(data);
-                                            if (data.Roles.IsSpecified) //Happens when a user we haven't seen before logs in
+                                            if (data.Roles.IsSpecified || data.Nick.IsSpecified) //Happens when a user we haven't seen before logs in
                                             {
                                                 CachedGuildUser user = guild.GetUser(data.User.Id);
                                                 if (user == null)

src/Discord.Net/Entities/Users/GuildUser.cs

@@ -74,6 +74,8 @@ namespace Discord
             
             if (model.Roles.IsSpecified)
                 UpdateRoles(model.Roles.Value);
+            if (model.Nick.IsSpecified)
+                Nickname = model.Nick.Value;
         }
         public void Update(VoiceStateModel model, UpdateSource source)
         {