LINQ to SQL includes new support for the new date and file stream capabilities in SQL Server 2008.The Entity Data Source provides a traditional data source experience for ASP.NET Web application builders who want to work with the Entity Framework. The graph serialization work helps developers who want to build Windows Communication Foundation (WCF) services that model full graphs as data contracts. This release of the Entity Framework supports the new date and file stream capabilities in SQL Server 2008.

The Entity Framework introduces some additional features, including support for new SQL Server 2008 types, default graph serialization of Entities, and the Entity Data Source. For more information, see Getting Started with the Entity Framework. The Entity Framework enables developers to program against relational databases in according to application-specific domain models instead of the underlying database models.

The Entity Framework is an evolution of the existing suite of ADO.NET data access technologies.

ClickOnce application publishers can decide to opt out of signing and hashing as appropriate for their scenarios, developers can programmatically install ClickOnce applications that display a customized branding, and ClickOnce error dialog boxes support links to application-specific support sites on the Web.

Additional functionality for WPF includes better support for line of business applications, native splash screen support, DirectX pixel shader support, and the new WebBrowser control.

Performance improvements to WPF (Windows Presentation Foundation), including a faster startup time and improved performance for Bitmap effects.

Additionally, managed applications that are opened from network shares have the same behavior as native applications by running with full trust.

NET Framework native images, opting out of strong-name verification for fully trusted assemblies, improved application startup performance, better generated code that improves end-to-end application execution time, and opting managed code to run in ASLR (Address Space Layout Randomization) mode if supported by the operating system. Core improvements to the CLR (common language runtime) that include better layout of.For more information, see What’s New in ASP.NET and Web Development. ASP.NET Dynamic Data, which provides a rich scaffolding framework that enables rapid data driven development without writing code, and a new addition to ASP.NET AJAX that provides support for managing browser history (back button support).NET Framework version 3.5 Service Pack 1 provides the following new features and improvements:

Ragnarok offline server pack