Several updates happened in the past months: 1 paper was accepted at ICLR 2024 on adaptive step size for federated learning; 1 paper was accepted at ICML 2024 on the first work on how error propagates in deflation PCA; 1 paper was accepted at ISIT 2024 on a fast algorithm for FixMatch; and 1 paper was accepted at ICRA 2024. This constitutes the update of OptimaLab for the past 5 months. More details are in the Publications webpage or Google Scholar.