• If you have not set the relative repair tolerance repairtol, you will get the new default repair tolerance type: auto. This will result in a valid geometry in almost all cases. In extreme cases, the result can have a different topology than in 5.2.
• In rare cases, if you have set the repairtol tolerance, version 5.2a can fail when building the geometry. If so, set repairtoltype to auto (select Automatic from the Repair tolerance list) to get the 5.2 behavior.