TUFLOW Version Backward Compatibility

2013-12-XX Builds
2013-12-AA Builds
	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 Builds
	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.