Currently on 2017 and use least squares for everything.
Regarding 2021+ My opinion is this new DEFAULT ..........'Constrained Least Squares' methodology, is not least squares, but is taking the highs and accounting for rocking conditions and they are calling it 'constrained least squares' when it is not least squares, it is the 'highs accounting for rocking'.
Paganini is correct. For AMSE we now default to using constrained L2 for datum fitting as per the ASME Y14.5.1 - 2019 math standard. For ISO we default to constrained min/max as per ISO5459:2011. In either case you are able to manually over-ride by selecting least squares.
Paganini is correct. For AMSE we now default to using constrained L2 for datum fitting as per the ASME Y14.5.1 - 2019 math standard. For ISO we default to constrained min/max as per ISO5459:2011. In either case you are able to manually over-ride by selecting least squares.