Today, Microsoft has released a beta preview for of SP1 for various editions of Visual Studio and the .NET Framework 3.5. And Tim Sneath has also blogged about the availability of the new major version of the Windows Presentation Foundation (WPF), that will ship with the .NET Framework 3.5 Beta 1, which full version will be available later this summer.
The downloads for these Service Pack beta releases are available here. For more information also check out Scott Guthrie’s blog post here.

There are a few major improvements, and the most notable one is the introduction of the Client Profile, which is a scaled down version of the .NET Framework 3.5, that is around 25 MB, where assemblies that aren’t used are removed. Its pretty amazing that the solution to the deployment issue for enterprise WPF applications is pretty similar to the approach adopted by the Silverlight runtime. Ease of deployment will definitely help in increasing the adoption rate of WPF in the industry.
There is also improvement to the WPF graphics engine, with enhanced support for shaders and deeper DirectX support, enabling a Direct3D surface to be brushed on top of any surface of WPF elements. Another notable improvement is the “fixes” on the BitmapEffects we most commonly use, Drop Shadow and Blur, which are now hardware-accelerated, and was previously a definite “no-no” in developing WPF applications as it takes up too much processing power.
Other than that, there are many other improvements like the loading screen of XBAPs now running in HTML instead which is definitely a great improvement, the introduction of Splash screen support in Visual Studio 2008 SP1.
There will also be new controls to add on to the arsenal of controls available in WPF, which are the DataGrid, Office Ribbon, and most notably, the WebBrowser control, which could potentially enable seamless integration of WPF and Silverlight applications.
Its great to see that many improvements on WPF, and if Silverlight is to continue evolving to provide the capabilities of what WPF has today, I must say, the future looks very promising indeed.