We are pleased to announce the dates of the 21st annual Oregon Programming Languages Summer School (OPLSS) to be held from June 26th to July 8th, 2023 at the University of Oregon in Eugene. We are looking forward to getting together in person! The theme of the summer school will be "types, semantics, and logic". More details about the program and the registration process will be available soon. OPLSS 2023 Organization Team Zena Ariola, Stephanie Balzer, and Stephanie Weirich [image: oplss.png]