Release Notes

6.0.0 Milestone 1

RDF4J 6.0.0-M1 is the first Milestone build of the upcoming 6.0.0 release of RDF4J. RDF4J 6.0.0 is a major release of the RDF4J framework. Some of the highlights covered in this first milestone: Upgrade to Java 25 as the minimally-required version of Java Introduction of a pluggable HTTP client SPI with Apache HttpComponents 5 and JDK built-in backends Migration from Apache HttpComponents 4 to the new HTTP client facade This milestone build is not yet feature-complete, but we are putting it out to receive early feedback on all the improvements we have put in.

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6.0.0

RDF4J 6.0.0 is a major release of the Eclipse RDF4J framework. It adds broad RDF 1.2 and SPARQL 1.2 support, moves the project to Java 25 and Jakarta, replaces the public Apache HttpClient 4 integration, and includes improvements to LMDB, FedX, query execution, security and deployment. The 6.0.0 milestone contains 46 completed issues. Highlights RDF 1.2 triple terms, literals with base direction, version announcements and updated RDF formats across the model, Rio, protocols and stores.

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5.3.2

RDF4J 5.3.2 is a patch release that fixes 2 issues, including a security fix for XML parsing. For a complete overview, see all issues fixed in 5.3.2. Security This release fixes XML parsing paths that were not fully covered by the earlier fix for CVE-2018-1000644. The vulnerability class is XML External Entity (XXE) processing: specially crafted XML input may attempt to make the parser resolve external entities or DTDs, with risks such as confidential data disclosure, denial of service, or server-side requests.

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