I assume that the arrangements referred to by the Deputy are contained in the proposal for a regulation of the European Parliament and of the Council amending Regulation (EC) No. 539/2001. That regulation constitutes a development of the provisions of the Schengen acquis in which Ireland does not take part in accordance with the Council Decision 2002/192/EC of 28 February, 2002.
Regulation (EC) No 539/2001 lists the third countries whose nationals must be in possession of a visa when crossing the external borders of the relevant Member States and those whose nationals are exempt from requiring a visa. As Ireland has not taken part in the adoption of this Regulation and is not bound by or subject to its application, nationals of Ukraine continue to require a visa to travel here.