Upgrading from Previous Versions

You can upgrade from any previous release straight to the current release.

Warning

Upgrade a test/development environment successfully before upgrading any production environment. This is especially important when the EDG workspace includes UI or model customizations.

Warning

Workspaces cannot be downgraded once upgraded. To revert to a previous version of EDG, you must restore the workspace from a backup (see EDG Backup and Restore) taken before upgrade.

Migration Notes

Warning

Before upgrading, review all Migration Notes starting at the version you are currently on and following along to the current release. The migration notes contain additional steps that must be done before, during or after the upgrade to keep EDG functioning and to prevent data loss.

Upgrade steps from 8.x and earlier 9.x releases to latest 9.x release

Stop Tomcat, make sure the process is fully stopped
Backup the workspace directory
Backup and remove the /edg directory and edg.war file located in Tomcat’s webapps directory
Place the current release’s edg.war file found in the download package into Tomcat’s webapps directory
Clear Tomcat’s work and temp directories
Start Tomcat
Perform any steps from the Migration Notes applicable to your installation
Test for refressions

Upgrade steps from 6.x/7.x

This requires a fresh installation from scratch, using the old installation’s setup file and workspace. Follow the steps in the migration notes for upgrading to 8.0.