Twelve print sizes, not four.

You can now export at every common paper and picture frame size:
from a 4 x 6 photo frame up to a 24 x 36 poster, plus A4, A3,
US Letter and Tabloid for printing at home. Every size comes as a
PDF or a 300 DPI PNG, portrait or landscape.

The export screen now tells you which size suits your tree. It
works out how large the names will actually print on each one and
marks the smallest that still reads comfortably. Sizes too small
for your tree are labelled rather than hidden, so a small keepsake
print is still yours to choose.

And the poster preview finally shows the true shape of the page
you picked, so a 24 x 36 looks like a 24 x 36 before you export
it rather than after.