Detailed Changelog for .NET Framework 4.0

Question

Is there a detailed list of changes in .NET 4.0?

Please add any changes you know about.

Answer 1

Here's what I've found in Beta 2.

If you know of any specific changes, feel free to add them.

mscorlib

• Microsoft.Win32.RegistryView – Explicit access to 32 or 64 bit registries.
• System.AggregateException – Thrown by the new parallelism stuff
• Environment.GetFolderPath(SpecialFolderOption) – Force creation or ignore existence
• Environment.Is64BitOperatingSystem & Environment.Is64BitProcess
• Environment.SystemPageSize – Size of the system pagefile
• System.Lazy<T> – Fully controlled lazy initialization
• ResolveEventArgs.RequestingAssembly – See which assembly is trying to load a dependency.
• TimeZoneInfo and supporting types moved to mscorlib
• Tuple – Generic tuples with up to 8 members
• Type.IsEquivalentTo – Check whether two COM types have the same identity
• Type.IsEnumDefined – Self-explanatory
• Version.Parse and Version.TryParse
• Enum.HasFlag and Enum.TryParse<TEnum>
• Guid.Parse, Guid.ParseExact, Guid.TryParse, and Guid.TryParseExact
• + and - operators for IntPtr and UIntPtr
• Func and Action in mscorlib with up to 16 parameters
• System.Collections.Concurrent namespace

Answer 2

From beta 1 but a good start here

Answer 3

The Changelog for .NET Framework 4.0 is here.