> I've a database on firebird 2.1.1 32bits and i want to migrate to
> firebird 2.1.4 64bits. Do I need a backup and restore database for
> porting to 2.1.4 64bits?

No.

> If i move from 2.1.4 64bits to 2.1.4 32bits i need to do backup and
> restore?

No.

Mind you, if you are using UDFs, you need libraries compiled for 64-bit.


Regards,
Thomas