TUFLOW Version Backward Compatibility

2013-12-XX Builds
2013-12-AA
	New default settings – see Defaults == PRE 2013-12 for a list of the commands that have changed in their default setting.
	Set Defaults == PRE 2013-12 if similar results are required to the 2012-05 release.
2013-12-AC
	The default setting for Link 2D2D Approach has changed.
	Set Link 2D2D Approach == METHOD B to achieve the same results as Builds 2013-12-AA and 2013-12-AB. See Link 2D2D Approach for more information.
2011-09-XX and 2012-05-XX Builds
2012-05-AA
	New default settings – see Defaults == PRE 2012-05 for a list of the commands that have changed in their default setting.
	Set Defaults == PRE 2012-05 if similar results are required to the 2011-09 or 2010-10 releases.
2012-05-AA
	The approach to the sizing of automatic manholes and the application of losses has been enhanced.
	Set Manhole Approach == Method A to achieve the same results as Build 2011-09-AA.
2011-09-AA
	The optimised compiler code is treated differently for Single Precision builds producing slightly different results (fractions of a mm) for some models.
	No workaround.
2010-10-XX Builds
2010-10-AA
	New Intel Fortran Compiler version produces slightly different results (usually fractions of a mm).
	No workaround.
2010-10-AA
	w32 and w64 versions will give slightly different results for the same simulation.
	No workaround. Use the same platform (w32 or w64) for all simulations. Use Model Platform to force which platform should be used.
2010-10-AA
	New default settings – see Defaults == PRE 2010-10 for a list of the commands that have changed in their default setting.
	Set Defaults == PRE 2010-10 if similar results are required to the 2008-08 or 2009 07 releases.
2010-10-AA
	Generation of TINs for polygons in Read GIS Shape layers is more robust and uses an improved approach. In rare cases, the TIN would fail and TUFLOW would abort the start-up.
	No workaround.