Hi,
This upgrade may require a step-wise upgrade, meaning that you will need to upgrade to an intermediate version before upgrading to 11.4
For example, you can try upgrading to 10.x and then to 11.4. Please remember to back up your data.
Please take a look at the links below for more information about the upgrade process, and other additional ones.
System Requirements: https://support.smartbear.com/collaborator/docs/server/install/requirements.html
Installers: https://support.smartbear.com/downloads/collaborator/all-installers/
Upgrade: https://support.smartbear.com/collaborator/docs/server/install/upgrade.html
Backup and Migration: https://support.smartbear.com/collaborator/docs/server/admin-tasks/backup.html
Test Newer Version: https://support.smartbear.com/collaborator/docs/server/install/newer-versions.html
Database Configuration: https://support.smartbear.com/collaborator/docs/server/install/db/index.html
Let us know if you need additional help.
Thanks
