Upgrading From ASP.Net MVC Preview 3 to Preview 5

As you know, ASP.net MVC Preview 5 is on the streets.

Busy using Preview 3 to produce awesome web applications, I missed the upgrade to Preview 4.

I am upgrading two big MVC application built on Preview 3.  Here are the issues I found:

Html.ActionLink() Behavior Changed

1. On This ActionLink and Preview5 Forum Post I found a Solution
2. The fix is to change this:

     Html.ActionLink("Title", "Action", "Controller", new { id = this.ObjectID } );
to this:
     Html.ActionLink("Title", "Action", "Controller", new { id = this.ObjectID }, null );

Html.Hidden() Behavior Changed

1. On this MVC UI Helper Article I thought I found a Solution, but no such luck
2. My fix was to change this:

   Html.Hidden("ReviewId", this.ID);

to this

   Html.Hidden("ReviewId", this.ID.ToString());