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I compared with NDepend .NET Fx v4.0 Beta1 with the new.NET Fx v4.0 Beta2 just released. I enumerated below some random interesting finds. Don’t hesitate to ping me back if I’ve missed some cool public API things.

To do the comparison yourself, you need to have kept a copy of beta1 assemblies as I explained in this post: Analyze and explore the evolution of .NET Framework by yourself

A lot of work has been done since the Beta1, there are 92K methods modified or added!

I take a chance to show a preview screenshot of a great upcoming NDepend feature concerning the comparison mode: the possibility to disassemble (with Reflector) and compare implementations of a modified method. With this feature one can fine-grain control evolution of a codebase from assemblies only.

Some new core types whose names are pretty explicit:

Some new core public methods that seem useful to me.

Some new WPF types. None of them contains IL instructions, meaning that they are DataObjects (declared with auto properties), enumerations, delegates or interfaces:

A new System.Numerics assembly has been created. This assembly now contains the class BigInteger (formerly defined in System). This assembly also contains 3 new interesting classes: Complex, DoubleULong and NumericsHelpers.

The assembly System.Caching seems to have been renamed System.Runtime.Caching.

A new assembly System.Device that seems to only expose so far classes to modelize a Geo Localization (GPS) device API  in the namespace System.Device.Location. It is pretty surprising actually, it looks like the .NET Fx is now modelizing some domains! It is like if future versions of .NET Fx will come with a System.Financial assembly with Account, Bid and Stock classes?!

System.Activities.* assemblies have been merged to give birth to a new System.Activities.Presentation assembly that seems to contain all previous assemblies code, now organized through namespaces.