Upgrading from 0.20.5 to FOP 2.1

Hi,

We want to move our application from FOP 0.20.5 to FOP 2.1.
After upgrading do i get the PDF same as before?
We are using many features of 0.20.5, like fox:outline, continued label,
write page number, orphans etc. and also we have used the API .

Will i  face any challenges in it?

Please let me know if you have any samples/ reference guide?


Thanks in advance,
Sireesha