Upgrade to 2.9
Recommendations
To upgrade a Casewhere deployment to 2.9, you must be, at least, running a 2.6-series release.
Before upgrading Casewhere, always test your application in a staging environment before deploying the upgrade to your production environment. It would be best if you also backup your production database before upgrading.
If you are deploying Azure App Service using Kudu Zip Push Deploy, you don't have to modify the web.config files manually, only need to update the keys in the Configuration / Application Settings.
Information! If you are replacing the old web.config with the new one, then you can ignore all update it steps in the section below.
Upgrade versions
The following changes must be applied in the described order.