BCL Team Blog for upcoming .NET 4.0 features

by Doug Finke on October 25, 2009

in .NET 4.0

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What’s New in the BCL in .NET 4 Beta 2 [Justin Van Patten]

Summary of New BCL Functionality in .NET 4 Beta 2

  • ISet<>, SortedSet<> and Tuples support
  • Complex Number
  • Location
  • IObservable<T>
  • Stream.CopyTo
  • Guid.TryParse, Version.TryParse, and Enum.TryParse<T>
  • Enum.HasFlag
  • String.Concat and String.Join overloads that take IEnumerable<T>
  • String.IsNullOrWhiteSpace
  • Environment.SpecialFolder additions
  • Environment.Is64BitProcess and Environment.Is64BitOperatingSystem
  • Path.Combine params support
  • TimeSpan Globalized Formatting and Parsing
  • Stopwatch.Restart
  • StringBuilder.Clear
  • IntPtr and UIntPtr Addition and Subtraction operators
  • ServiceProcessInstaller.DelayedAutoStart
  • ObservableCollection<T> moved to System.dll

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