The Department of Transport add a suffix at each form change, A to B, B to Γ, Γ το Δ etc. If you come accross an updated form you should use it. Please me know here.
Click this link regarding personal attendance with the forms.
Medical Form – TOM 153E – Required with driving licence application if over 70 years, drivers with disabilities and applications for licences in categories C, C + E, D, D + E, subcategories C1, C1 + E, D1, D1 + E, and special classes G, H, I.