Nice updated pages on MSDN about “Upgrading to NAV 2015 and automation with Powershell Scripts”
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Upgrade
To upgrade to Microsoft Dynamics NAV 2015, you must complete the following main steps: 1) Convert the database, 2) Upgrade the code, 3) Upgrade the data https://msdn.microsoft.com/en-us/library/dn271649(v=nav.80).aspx
Convert the database https://msdn.microsoft.com/en-us/library/dn271650(v=nav.80).aspx
Upgrading the Application Codehttps://msdn.microsoft.com/en-us/library/dn271652(v=nav.80).aspx
Comparing and Merging Application Object Source Fileshttps://msdn.microsoft.com/en-us/library/dn789581(v=nav.80).aspx
Merging Application Objects using the Example Scriptshttps://msdn.microsoft.com/en-us/library/dn762354(v=nav.80).aspx
Upgrading the Datahttps://msdn.microsoft.com/en-us/library/dn271668(v=nav.80).aspx
Powershell
Automating the Upgrade Process using Sample Windows PowerShell Scripts https://msdn.microsoft.com/en-us/library/dn414687(v=nav.80).aspx
Image may be NSFW.
Clik here to view.
Image may be NSFW.Clik here to view.
Image may be NSFW.Clik here to view.
