All recent Delft-FEWS releases require 64-bit hardware and OS. Deltares supports at maximum 5 versions. If still on an unsupported version it is strongly recommended to upgrade to a supported version.status version release date end of support to be released 2021.02 Jan 2022 when 2024.01 is released (approx. Q3 2024) supported 2021.01 Jul 2021 when 2023.02 is released (approx. Q1 2024) supported 2020.02 Mar 2021 when 2023.01 is released (approx. Q3 2023) supported 2020.01 Jul 2020 when 2022.02 is released (approx. Q1 2023) supported 2019.02 Mar 2020 when 2022.01 is released (approx. Q3 2022) supported 2018.02 Mar 2019 when 2021.02 is released, Jan 2022