Upgrading WinForms syntax editor from 4 to 23

I have inherited a project that was not kept up to date.  I'm now faced with upgrading because of licensing issues.  Is there a document somewhere that outlines upgrading from the 4.0.290 version?  I have nothing but errors at the moment and can't make head nor tail of the mess.

The classes in the project use DynamicSyntaxLanguage, ISemanticParserServiceProcessor, and the SyntaxEditor.

I have licensing for the SyntaxEditor; so I'm not able to load the sample project because I don't have licensing for the .net and additional add ons that the project requires.