The LOEP installation section explains how to install a LOEP instance for development.
This sections explains how to upgrade a LOEP instance to the latest version of LOEP.

There is a basic task for upgrading that can be invoked in the following way:

bundle exec rake db:populate:upgrade  

This task:

• Applies database migrations if needed.
• Creates all necessary components (new roles, languages, evaluation models, metrics, and so on).
• Updates the necessary scores for the new evaluation models and/or metrics.
• Applies mandatory fixes.

New evaluation models and metrics will be only added if they are enabled in the application_config.yml file.
All available evaluations models and metrics are listed on the followings pages of the wiki: Available Evaluation Models and Available Quality Metrics.

No more tasks are needed in order to update a LOEP instance to the latest version.

The new features and changes of the new LOEP versions can be seen here.