The cumulative update 1 of NAV2015 includes an upgrade toolkit for upgrading a Microsoft Dynamics NAV 2009 R2 or Microsoft Dynamics NAV 2009 SP1 database to Microsoft Dynamics NAV 2015. The upgrade toolkit includes several application objects in FOB files that simplify the upgrade process for those of you coming from Microsoft Dynamics NAV 2009 R2 or Microsoft Dynamics NAV 2009 SP1.
You can download cumulative update 1 here
https://mbs2.microsoft.com/Knowledgebase/KBDisplay.aspx?scid=kb;EN-US;3013215
see the attached whitepaper about Upgrade Toolkit.