The 2025 Sustainable Yields (SY) module 2 provides updated and agreed modelled Basin Plan reference scenarios for the Murray–Darling Basin (MDB), incorporating future hydroclimate projections. The River System modelling has combined the Without Development (Historical), Pre Basin Plan at 2009 (Baseline) Basin Plan at 2024 and Basin Plan Full implementation reference scenarios with the future hydroclimate datasets out to 2050.