Released 0.63
This version has been heavily tested and is suitable for packaging. I hope nothing pops up today because the avalanche of patches that have been held back are starting to flow in.

Update: It seems the best way to get things tested is to release them...
Just received several test sheets with problems. So far I've only looked at the first but it has indeed demonstrated several errors. Nothing that crashes but several span/hide inconsistencies. I hope we can get another release out before 1.4.