NIST has selected seven finalists and eight alternates as part of Round 3 as candidates for standardization. The conference will discuss various aspects of these algorithms and to obtain valuable feedback for informing decisions on standardization. Each of the seven finalist submission teams has been invited to give an update on their algorithms, as well as the eight alternate candidate teams. NIST is soliciting research and discussion papers, surveys, presentations, case studies, panel proposals, and participation from all interested parties with a submission deadline of April 23, 2021.