Enterprise Library 4.1 is now available.

What's New?

• Unity interception mechanism and integration of the Policy Injection Application Block with the Unity Application Block
• Added support for generics in the Unity Application Block
  Added support for arrays in the Unity Application Block
• Performance improvements
• Usability improvements to the configuration tool
• Visual Studio 2008 Service Pack 1 support
• Bug fixes

Key Features

• Caching Block
• Cryptography Block
• Data Access Block
• Exception Handling Block
• Logging Block
• Policy Injection Block
• Security Block
• Unity Block
• Validation Block

What Is Enterprise Library?
Enterprise Library is a collection of reusable software components (application blocks) designed to assist software developers with common enterprise development challenges (such as logging, validation, caching, exception handling, and many others). Application blocks are a type of guidance encapsulating Microsoft recommended development practices; they are provided as source code, tests plus documentation that can be used "as is," extended, or modified by developers to use on complex, enterprise-level line-of-business development projects.

Key Links

• Enterprise Library 4.1 Home (MSDN)