Survey Solutions version upgrade

How to upgrade survey solutions to a newer version when installed locally?

The steps are the same - download the most recent installer and run on the server, it will automatically detect the existing installation and run upgrade. Of course, it is always a great idea to have a backup of your production instance before trying to modify it.


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I wanted to know how to synchronize data collected from previous version of interviewer app of survey solutions, before re-installing the latest updated version of the app? I do not want to lose that data.
Basically, a few interviews which were conducted just yesterday can no longer be synchronized to the server due to the new version being available (about which I received an email notification today morning). The app keeps showing this:

Any advice which can help me not losing these 17 interviews would be greatly appreciated.
Many thanks in advance.


you have to first upgrade and only then the server will accept the synchronization data.