How To Change Password Validation in ASP.Net MVC Identity 2?

In the MVC project template in VS2013 Update 2, there should be a file called App_Start/IdentityConfig.cs. In it you should find the class ApplicationUserManager and a static factory method called Create(). That’s where the user manager class is configured, including the server-side validation rules for passwords are defined. For example:

manager.PasswordValidator = new PasswordValidator
{
    RequiredLength = 6,
    RequireNonLetterOrDigit = true,
    RequireDigit = true,
    RequireLowercase = true,
    RequireUppercase = true,
};