This issue list some changes that will break backward compatibility and should be implemented in OTB 7.0.

• in VectorDataProjection application, remove "origin/spacing" from GenericRSTransform call : Vector Data shall not be expressed with origin & spacing from the reference image (see #1681 (closed))
• simplify FineRegistration application by removing warping option (see #1652) : this creates a 2nd pipeline and could be replaced by using GridBaseImageResampling (with some adaptation).

Feel free to add new ideas, or to report them in the comments below.