Final judgment prerequisite to appeal; grant of new trial subject to review

No appeal as to any ruling or decision in a mandamus or quo warranto proceeding or in a case involving a writ of prohibition may be taken until there has been a final judgment in the trial court. The grant of a new trial shall be treated as a final judgment in these cases and subject to review as in other cases. Amended by 2016 Ga. Laws 626,§ 3-4, eff. 1/1/2017.