Question

Does FineReader Server 14 support the same workflows as the old Recognition Server 4.0?

Answer

Generally, the answer is yes.

It supports the same workflows and in most cases, old workflows will work.
But since Recognition Server 4.0 and FineReader Server 14 are two separate products, in each particular case it must be tested accordingly. 

Detailed information about upgrading from previous versions could be found here: Previous Versions