Open Source Document Management System | OpenKM

Hi,
I am using OpenKM 6.3.12CE in Linux OS. I am also using Ldap Principal Adapter for using AD. I am currently using Tomcat-8.5.69
I want to upgrade my Apache tomcat version to latest version.
1) Please let me know what is the latest tomcat version that OpenKM 6.3.12CE can support?
please share the details of the supported tomcat version since there are many categories in a version

2) What is the procedure and steps to switch to new version of tomcat? what changes do we need to make and in which file since we are using Linux?

3) What precautions do I need to keep in mind to make sure that current OpenKM functions, reports, workflows, configurations, settings and files are not affected?

Regards

1- I suggest doing a full backup before trying to upgrade the Tomcat ( you must upgrade to the lastest tomcat 8.5.X -> can not upgrade to tomcat 9.X or upper )
2- In this URL https://docs.openkm.com/kcenter/view/ok ... pdate.html we try to explain the concepts you should consider to upgrade the tomcat, in the previous URL is talking about a major change between version 7 to version 8. In the case of upgrading, a minor upgrade, you should only keep the configuration files described at the beginning:
Copy these files and folders from the old Tomcat to the new one:
* conf/server.xml
* conf/context.xml
* OpenKM.cfg
* OpenKM.xml
* repository
* plugins

3- The OpenKM data is the sum of the database and the repository folder, if you keep it you will not lose anything
4- Probably you will need to update the service, in Linux is quite easy, in the case of Windows the best will be to remove the current service and register again https://docs.openkm.com/kcenter/view/ok ... ndows.html.

Another approach is installing the OpenKM in a new server and testing the upgrade process there before playing with your production one