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Linked Data Platform alignment

Fedora is a Linked Data Platform (LDP) server implementation. This release fixes a few bugs that relate to the interactions that an LDP client should expect.

Upgrading and Migrating

A primary focus of the ongoing Fedora effort is to facilitate the upgrade/migration of Fedora3 repositories to Fedora4. To those ends, a number couple of improvements have been incorporated into the "migration-utils   [9]" upgration utility.

• Enable the migration source to include Fedora2
• Map legacy PIDs to user-defined Fedora4 predicates, versus the previous dc:identifier mapping
• Packaging the utility as a standalone executable application
• Using opaque identifiers for migrated resources
• Adding support for user-provided RDF namespace mappings
• Providing specific mappings of Fedora3 to Fedora4 properties
• Improving support for migrating resources with non-existent datastreams

External Services

One of the exciting capabilities that Fedora enables is the creation of distributed, asynchronous, message-driven services that are external to the core repository but are triggered by repository events. This release further improves the deployment and runtime configurability of the Fedora-related Apache Camel-based [] features. 

Web Access Control

Web Access Control

A significant community success that is found in this release is an initial implementation of an Web Access Control [] authorization module. This authorization module enables the establishment of access policies modeled as linked data. This feature was initiated, planned, designed, and implemented by a group of community stakeholders.

Housekeeping and Bugfixes

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