Enterprise Library 5 heads out to the masses

Microsoft Enterprise Library is a collection of reusable application blocks designed to assist software developers with common enterprise development challenges.

This Release 5 includes: Caching Block, Cryptography Block, Data Access Block, Exception Handling Block, Logging Block, Policy Injection Block, Security Block, Validation Block, and Unity.

Download Enterprise Library 5

The source code is free and available in CodePlex and this release offers various improvements and enhancements over Enterprise Library 4.1.
Enterprise Library 5 Source Code on CodePlex