By Matthew Patterson and Celina Seguin ( October 23, 2026, 10:47 AM EDT) -- For the first time in more than 50 years, the Court of Appeal for Ontario has updated its test for leave to appeal from a decision of the Divisional Court. In Knauff v. Ontario (Human Rights Tribunal), 2026 ONCA 653, a five-judge panel confirmed that the test for leave is whether the proposed appeal raises an arguable question of law or mixed law and fact that is of sufficient public importance to warrant consideration by the Court of Appeal....