P&P Enterprise Library 3.0 リリース

されてましたね。
patterns & practices Developer Center - Enterprise Library

概要はこんな感じだそうです。

• New application blocks
  
  
  • Validation Application Block
  
  
  • Policy Injection Application Block
  
  
  
  
• Improvements to existing application blocks
  
  
  • Data Access Application Block
  
  
  • Logging Application Block
  
  
  
  
• .NET Framework 3.0 integration
  
  
  • Logging, Exception Handling and Validation Application Blocks
  
  
  
  
• Configuration improvements
  
  
  • Visual Studio-integrated configuration tool
  
  
  • Environmental Overrides
  
  
  • Manageable Configuration Source
  
  
  
  
• Automation
  
  
  • Application Block Software Factory
  
  
  • Strong Naming Guidance Package