Hi all, Please find below the details of Cumulative Update 4 released for Microsoft Dynamics NAV 2015. Title - Cumulative Update 4 for Microsoft Dynamics NAV 2015 Build No. - 39663 Release Date - February, 2015 Local Version Included - AU, AT, BE, CH, CZ, DE, DK, ES, FI, FR, IS, IT, NA, NL, NO, NZ, RU, SE, UK. Download Link Note: Implementing this cumulative update will require a database conversion unless you have already implemented cumulative update rollup 4 . This is caused by the introduction of the ability to return the Microsoft Dynamics NAV Tablet client as the current client type. You will be able to read about that in the MSDN Library after we complete the monthly update of the Microsoft Dynamics NAV 2015 content there on February 11, 2015.