Last week we published the RC2 build of ASP.NET MVC 3. I blogged a bunch of details about it here . One of the reasons we publish release candidates is to help find those last "hard to find" bugs. So far we haven't seen many issues reported with the RC2 release (which is good) - although we have seen a few reports of a metadata caching bug that manifests itself in at least two scenarios: Nullable parameters in action methods have problems : When you have a controller action method with a nullable parameter (like int? - or a complex type that has a nullable sub-property), the nullable parameter might always end up being null - even when the request contains a valid value for the parameter. [AllowHtml] doesn't allow HTML in model binding...(read more) ...
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