The attorney for a party and any self-represented party must give the appellate clerk prompt notice of the settlement of any pending appeal or other matter. An appellate court may impose sanctions against an attorney or a party for any unreasonable delay in giving such notice to the appellate clerk.
Ariz. R. Civi. app. proc. 31
APPLICATION
<The Jan. 1, 2015 amendment is applicable to all appeals filed on or after Jan. 1, 2015, as well as all other appeals pending on that date, except when application would not be feasible or would work an injustice, so that the former rule will be applied.>