Updating the application
GeoNetwork 3.12 has reach end-of-life and is not recommended for production systems.
Updating from GeoNetwork 3.10 to GeoNetwork 3.12
Updating from GeoNetwork 3.10 to GeoNetwork 3.12 is a minor upgrade and may be performed in place.
Upgrade from GeoNetwork 2.10 to GeoNetwork 3.12
Upgrading from GeoNetwork 2.10 to GeoNetwork 3.12 is a major upgrade.
We do not recommend updating a production system. Instead treat this as a migration, setting up a new GeoNetwork 4.0 installation and transfer data and settings.