Rule 72 of The Probate and Administration Rules: Application of Rules to pending proceedings

(1) Subject to the provisions of the Act and in any particular case to any direction given by the court, these Rules shall apply to every application and proceeding which is pending on the date on which they come into operation but not so as to invalidate anything previously done or made in lawful compliance with the practice and procedure existing and in force at the time.
(2) If any question arises as to the application of the Act or of these Rules to any such pending proceedings it may be referred to the court or a registrar for determination.