FabTools & Rhino 6: 3D Text throws error

I'm a big fan of FabTools but it doesn't seem to work for me in Rhino 6.

The error I get is:

1. Error (CS1061): 'Rhino.Geometry.TextEntity' does not contain a definition for 'AnnotativeScalingEnabled' and no extension method 'AnnotativeScalingEnabled' accepting a first argument of type 'Rhino.Geometry.TextEntity' could be found (are you missing a using directive or an assembly reference?) (line 94)

Along with some warnings:

1. Warning (CS0618): 'Rhino.Geometry.AnnotationBase.Text' is obsolete: 'Use RichText or PlainText' (line 88)
2. Warning (CS0618): 'Rhino.Geometry.AnnotationBase.FontIndex' is obsolete: 'Use Font property instead' (line 92)

3. Warning (CS0618): 'Rhino.RhinoDoc.Fonts' is obsolete: 'Use DimStyles table instead' (line 92)

I've downloaded the latest version of FabTools.

I've completely un-installed and re-installed.

I've Googled everything I can think of to find a solution, but most references are circa 2013 which is probably under Rhino 5. Which works totally fine, BTW.

Does anybody know of a solution?

Thanks,

Michael