Resources

This release has been built against Java 8
Downloads [1]
Javadocs [2]

Team

Release Manager

Andrew Woods

Developers

Issue Reporters

Summary

The Fedora 4.4.0 release furthers several major objectives:

Tighten the definition the RESTful application programming interface (API)
Further align this API to community standards, including the Linked Data Platform (LDP) and Web Access Control (WebAC)
Improve tooling for legacy Fedora repositories to Fedora4
Improve tooling for external services live in the ecosystem around the repository
Fix bugs

This release is a major release (i.e. 4.4.0 instead of 4.3.1) because there are a two updates that are not strictly speaking backwards compatible with 4.3.0:

HTTP GET requests on descriptions of NonRDF resources (i.e. binaries) now return RDF triples that all have the NonRDF resource as the subject, whereas previously the returned RDF contained a mix of subjects in the response: some subjects were the NonRDF resource, some subjects were the NonRDF description resource
When requesting the fixity service be performed on a binary resource, the "status" of the fixity result has been changed in this release from: "fedora:status" to "premis:hasEventOutcome"

Although not a backwards incompatible update in the 4.4.0 release, it should be noted that the Import and Export services [] have been deprecated due to their reliance on a JCR serialization versus an RDF-centric approach. These services will be supplanted by externalized machinery that transacts in RDF.

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Updates

Community Involvement

Application Programming Interface

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Linked Data Platform alignment

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 of improvements have been incorporated into the "migration-utils [9]" upgration utility.

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

key	summary	type	created	updated	due	assignee	reporter	priority	status	resolution
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External Services

Web Access Control

Housekeeping and Bugfixes

Numerous refactorings, bugfixes, and clean-up tasks were addressed in this release. Some of the highlights include:

...

References

[1]  https://wiki.duraspace.org/display/FF/Downloads
[2]  http://docs.fcrepo.org
[3]

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Fedora 4.4.0 Release Notes