Состоялся релиз сервис пака .NET Framework 3.5SP1 и VS2008 SP1.
Доступны они тут.
The .NET Framework 3.5 SP1 delivers:
* Performance increases between 20-45% for WPF-based applications – without having to change any code
* WCF improvements that give developers more control over the way they access data and services
* Streamlined installation experience for client applications
* Improvements in the area of data platform, such as the ADO.NET Entity Framework, ADO.NET Data Services and support for SQL Server 2008’s new features