Section 1 Overview

1.1 2023-03 Release

The 2023-03 Release is a major release that introduces new features and offers significant improvements to the existing sub-grid sampling functionality. A range of general new features, enhancements and bug fixes are also included. These include:

  • New GIS Vector file format – GeoPackage
  • New GIS Raster file formats – GeoTIFF and GeoPackage
  • Layered interflow (Sub-Surface) Flows
  • Sub-Grid Sampling (SGS) improvements
  • 2D bridge modelling enhancements
  • 2D weir flow enhancements

As always, it is recommended that when switching to a new build with an established model, test runs are carried out and comparisons made between the old and new builds (subtracting the two maximum water level (h) data sets and reviewing any differences is an easy way to do this). If you have any queries on the comparison, or require clarification or more detail on any of the points below, please email