Rule 412 on joint petitions for modification has been amended effective August 1, 2013. According to the Reporter's Notes, the "Rule is expanded to allow parties to jointly request modification of a judgment or order of the Probate and Family Court where the parties are in agreement. the agreement is in writing, and all other requirements of this Rule are met. The 2013 amendments to the Rule will allow the court to handle more cases administratively."
To reflect the expansion of the rule, the new rule is entitled Uncontested Actions to Modify a Judgment or Order.