18.5 2018-03 Release

Table 18.5 outlines the changes made to the default settings for the 2018-03 release and lists commands to revert the settings to those used by the prior major release group (2017-09). There is no “Defaults == Pre 2018” command provided for the 2018-03 release. For more information on changes, see the 2018-03 Release Notes.

Table 18.5: Default Changes in the 2018-03 Release and Backward Compatibility to 2017-09

Description of Change	2018-03 Release Notes	Backward Compatibility Command
For TUFLOW HPC an enhancement to the extrapolation of Pit curves to provide consistency with Classic was implemented.	Section 2.1.4	Pit Default Extrapolate Q Curve == OFF
The treatment of unconnected pits, which previously would trigger an ERROR, has changed to apply these pits as a virtual pipe pit that discharges water directly out of the model.	Section 2.1.5	Pit No 1D Connection == ERROR
Advanced index feature added to significantly improve 1D/2D model simulation speeds.	Section 4.1	Index 1D2D Links == OFF