evidence: The new estimates are based on multiple lines of evidence and physical plausibility for each sea-level component, including the critical Antarctic ice sheet contribution. This approach leads to substantially lower numbers than the structured expert judgement used in the latest IPPC-AR6 report for strong warming scenarios at the end of the century: a difference of around 30 cm lower compared with the high impact low likelihood scenarios of IPCC-AR6. The high-end global mean sea-level rise is now projected to be up to 1.3-1.6 meters for strong warming in 2100. The collapse of major Antarctic ice shelves at the end of the century followed by increased discharge of ice may lead to a 9-10 meter catastrophic sea-level rise by 2300 under the same strong warming scenario. Fulfilling the Paris Agreement will greatly reduce the potential or high-end sea-level rise to 2.2-2.5 m, but not stop sea-level rise to 2300. Hence, we need to be prepared to both mitigate climate change and adapt in coastal areas—but such adaptation is feasible for this magnitude of change over multiple centuries in many places. [...] A high-end estimate of sea-level rise for practitioners: R. S. W. van de Wal, R. J. Nicholls, D. Behar, K. McInnes, D. Stammer, J. A. Lowe, J. A. Church, R. DeConto, X. Fettweis, H. Goelzer, M. Haasnoot, I. D. Haigh, J. Hinkel, B. P. Horton, T. S. James, A. Jenkins, G. LeCozannet, A. Levermann, W. H. Lipscomb, B. Marzeion, F. Pattyn, T. Payne, T. Pfeffer, S. F. Price, H. Seroussi, S. Sun, W. Veatch, K. White, Earth Future.