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RDF4J 5.3.0 Milestone 1

Sun, Dec 21, 2025

Milestone number 1 of the upcoming 5.3.0 release of RDF4J is now available for download.

RDF4J 5.3.0 is a minor release focusing on stability and getting the code ready for the next major release.

Notable changes in 5.3.0 M1

  • The Var implementation used in the query engine now supports custom implementations through the Java Service Provider Interface (SPI). See: Var.java
  • The Solr Sail has been deprecated and will be removed in the next major release.

This milestone build is not yet feature-complete, but we are putting it out to receive early feedback on the deprecation.

About

Eclipse RDF4J™ is a powerful Java framework for processing and handling RDF data. This includes creating, parsing, scalable storage, reasoning and querying with RDF and Linked Data. It offers an easy-to-use API that can be connected to all leading RDF database solutions. It allows you to connect with SPARQL endpoints and create applications that leverage the power of linked data and Semantic Web.


RDF4J Architecture

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