Restarting Jahia instance after upgrade

Question

Is it necessary to restart Jahia instance every each upgrade?

Answer

Yes. After running a fix applier or upgrade, a restart is mandatory. The reason is that the fix appliers contain scripts (e.g. groovy and database update scripts) that are only applied during the startup process. The same also applies to cluster environments; each node in the cluster has to be restarted for the upgrade to complete successfully.