Will Sage 300 2016, allow upgrade from ?

Hi,

1) Will the new Sage 300 2016 allow upgrade from older version ?

eg: Accpac 5.5?

2) What about the Database, will it help to migrate Data from AccPac 5.x, PSQL, to MS-SQL ?

3) The Database Dump & Load Application, does not work for different versions. WHY?

eg: Sage AccPac 5.5 Dump to Sage 300 2014 Load.  Why do I need to goto Sage AccPac 5.6 to move my data to "AccPac 6.2A" ?

4) Where can I get a copy of Sage AccPac 5.6 ISO file ?

Thanks.