The Judicial Branch has posted recently adopted revisions to the Rules of Appellate Procedure, to take effect on January 1, 2021 (and other dates).
The amendments were approved by the Appellate Court on July 7, 2020 and by the Supreme Court on July 23, 2020. The amendments make changes to a number of rules.
The Connecticut Judicial Branch court rules web page contains links to all proposed and adopted amendments to the current Connecticut Practice Book.