Which versions can be upgraded?

Upgrading to latest Business Central 365

Directly upgrade from one of following versions:
· Microsoft Dynamics NAV 2015
· Microsoft Dynamics NAV 2016
· Microsoft Dynamics NAV 2017
· Microsoft Dynamics NAV 2018
· Business Central October 2018

Upgrade from one of following versions:
· Microsoft Dynamics NAV 2013
· Microsoft Dynamics NAV 2013 R2
First an upgrade to Microsoft Dynamics NAV 2018

Upgrade from one of following versions:
· Microsoft Dynamics NAV 2009 SP1
· Microsoft Dynamics NAV 2009 R2
First an upgrade to Microsoft Dynamics NAV 2013 or 2015, then upgrade to Microsoft Dynamics NAV 2018

· Microsoft Dynamics NAV 5.0
· Microsoft Dynamics NAV 4.0
First an upgrade to Microsoft Dynamics NAV 2013 and then upgrade to Microsoft Dynamics NAV 2018