Hello,We would also like to perform a Technical Upgrade from NAV 2013 R2 to NAV 2017. Pre-RTC is seemed to be a Microsoft best practice to be on the latest executables which included major releases or crossing from 4.0 to 5.0 for example. That practice seemed to change with the release of the 3 Tier Architecture. Now I have found some documentation on MSDN that leads me to believe Microsoft may be recommending / supporting this type of upgrade. Please review this link: Converting a Database - Technical Upgrade
We have been trying to get our VAR to verify this with Microsoft to ensure this is truly supported and/or recommended for several months without a clear answer. :(Our goal is to be able to minimize our customization footprint by taking advantage of events. I have tested this with a Cronus database (2013 R2 to 2016) and events seem to work fine. With that said, we also don't want to perform this technical upgrade if Microsoft is not willing to support it. The above posting implies they will to me, but we need confirmation from Microsoft.If others have performed a Technical Upgrade from a Platform without Events to one with Events I would be interested in hearing your perspective.Thanks,
Technical upgrades from older version than 2015 are not allowed to NAV 2017, we simply do not support it because of the changes we have had in the platform, which makes it unstable and the integrity of it would be not possible to expect.
We do support happily the technical upgrade possibility from NAV 2016 to NAV 2017, and from NAV 2015 to NAV 2016, we started supporting this again starting from NAV 2015, because we have done a lot of work on the platform to enable this in a safe way, starting from how the objects are being dealt with, the metadata, and the schema sync, only starting from NAV 2015 is this unified, the versions before are definitely far to different, hence we couldn't afford allowing the technical upgrade form them.
NAV 2013 R2 is a version to be known having some difficulties when it comes to schema sync and table metadata, so I would definitely advise you, to leave this version to any higher one only based on a full upgrade path, then as I said starting from NAV 2015 it gets more stable.