Upgrading Orthanc for Windows

I am endeavoring to upgrade our current Windows installation of Orthanc Server version 18.7.1 to 20.9.3. I was wondering if there were any tips or precautions I should take prior to attempting this process.

Thanks.

Hello,

As long as you don’t upgrade between versions of Orthanc that use different versions of the database schema (which is not the case between 18.7.1 and 20.9.3, that respectively correspond to Orthanc 1.4.1 and 1.7.3), there should be no problem:
https://book.orthanc-server.com/developers/db-versioning.html

In either case, always make sure to make backups of your Orthanc servers:
https://book.orthanc-server.com/users/backup.html

Sébastien-