AcManager.Tools.Managers.Online.RecentManager.AddToRecentList C# (CSharp) Method

        private void AddToRecentList(string ip, int httpPort) {
            lock (_recent) {
                var filename = RecentListFilename;
                File.WriteAllLines(filename, LoadAndFilterList(filename).Append($"{ip}:{httpPort}").TakeLast(25));
            }
        }