A brief update on the current state of Fedora 4, followed by a high-level feature discussion for managers and a hands-on test drive for developers. and A workshop given at Hydra Connect #2 described thus
A proposal for a presentation given at the Open Repositories conference in 2015 held in Indianapolis described thus, One of the many successes of the Hydra community is the fundamental notion from which its name is derived—the concept of many interfaces (“heads”) over top of a single repository (the “body”). The recent release of Fedora 4, with its internal RDF-centric model, has spurred efforts for a community-wide model of collections and works, such that the heads can be sure that the body will behave as they expect it to. That model has been designed and vetted by the Hydra community, and its architecture and initial implementations will be presented in this paper. [Note, and the subject of this proposal has since become known as the 'Portland Common Data Model'.]
Fedora is the flexible, extensible, open source repository platform that commonly underlies Samvera implementations. Fedora provides a number of core services that Samvera already uses, such as CRUD operations, versioning, and fixity, and several new, potentially useful extended services have been introduced within the last year. The API Extension Framework provides a means of binding services to repository objects in order to extend the functionality of Fedora, while the Import/Export Utility makes it easier to get content into and out of Fedora in standardized formats and packages. This workshop will introduce both of these new services and discuss how they might be used in the context of Samvera. Participants will also have an opportunity to try them out via hands-on exercises in combination with a virtual machine. and A workshop given at Samvera Connect 2017 described thus