Migrating a Fedora 3-based Hydra repository to Fedora 4 can be a major undertaking. This panel will bring together representatives from multiple institutions that either are planning for, are in the midst of, or have completed such a migration. Depending on where they are in the migration process, panelists will talk about their plans for migration, techniques used or expected to be used, obstacles anticipated or encountered, how problems were addressed, and migration outcomes. It is hoped that the presentations and discussion will be useful to other Hydra sites planning such a migration. A video of this session is available at the 'Related URL' below. and A presentation given at Hydra Connect 2016 described thus