FluentValidation v3 is now available for download. You can grab the binaries from the CodePlex page or by installing it using NuGet:

install-package FluentValidation

If you want integration with ASP.NET MVC 3, you can install the FluentValidation.Mvc3 nuget package:

install-package FluentValidation.Mvc3

For a summary of what’s new in this release, check out the following posts:

• Part 1 – RuleSets
• Part 2 – CustomizeValidatorAttribute
• Part 3 – ASP.NET MVC validation interceptors
• Part 4 – Better handling of Nullable Types
• Part 5 – Conditional validation of collection elements
• Part 6 – Other Features

…or take a look at the full changelog.

Note that this release takes a dependency on .NET 4, so if you’re still running on .NET 3.5 then you’ll need to stick with FluentValidation 2.0.