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Sun, Jul 31, 2022

RDF4J 4.1.0 is now available.

A few notable features:

  • Major performance improvements[1]
    • 3x higher throughput for concurrent queries with the Memory Store
    • 25x faster deletion with the Native Store
    • 6x faster evaluation of SPARQL queries using MINUS with the Memory Store
    • 2-3x faster evaluation of most SPARQL queries with the Memory Store
    • Faster SPARQL query parsing
    • Faster SHACL validation
    • Passing the RDFS Reasoner Challenge posted by Justin
  • LMDB Store is available in the server and workbench
  • Fuzzy prefix support in the Lucene Sail
  • Improved handling of low memory in the Memory Store
  • Improvements to the Spring Components

For more details, have a look at the release notes.



Thu, Jul 7, 2022

RDF4J 4.0.4 is now available. This is a patch release fixing 2 bugs.

For more details, have a look at the release notes.



Sat, Jul 2, 2022

Milestone number 1 of the upcoming 4.1.0 minor release of RDF4J is now available for download.

A few notable features:

  • Major performance improvements[1]
    • 3x higher throughput for concurrent queries with the Memory Store
    • 25x faster deletion with the Native Store
    • 6x faster evaluation of SPARQL queries using MINUS with the Memory Store
    • 2-3x faster evaluation of most SPARQL queries with the Memory Store
    • Faster SPARQL query parsing
    • Faster SHACL validation
    • Passing the RDFS Reasoner Challenge posted by Justin
  • LMDB Store is available in the server and workbench
  • Fuzzy prefix support in the Lucene Sail
  • Improved handling of low memory in the Memory Store
  • Improvements to the Spring Components

This milestone build is not yet feature-complete, but we are publishing it in order to receive early feedback on all the changes and improvements. Feedback on the performance and integrity of the revamped internals of the Memory Store is especially welcome, as is feedback on the various deprecations related to query evaluation.



Tue, Jun 28, 2022

RDF4J 4.0.3 is now available. This is a patch release fixing 2 bugs.

For more details, have a look at the release notes.



Mon, Jun 6, 2022

RDF4J 4.0.2 is now available. This is a patch release fixing 8 issues.

For more details, have a look at the release notes.



Sun, May 15, 2022

RDF4J 4.0.1 is now available. This is a patch release fixing 8 bugs.

For more details, have a look at the release notes.



Sun, Apr 24, 2022
balloons We are very excited to announce the release of RDF4J 4.0!

RDF4J 4.0.0 is a major release of the RDF4J framework, focusing on improved performance and improved maintainability. We’ve done a massive clean up of the project structure, which will make it easier to deliver new features in this and future releases. In total, we addressed over 100 issues. Highlights include:



Tue, Apr 12, 2022

Milestone number 3 of the upcoming 4.0.0 release of RDF4J is now available for download.

RDF4J 4.0.0 is a major release of the RDF4J framework, focusing on improved performance and improved maintainability. We’ve done a massive clean up of the project structure, which is intended to make it easier to deliver new features in this and future releases.

Some of the highlights covered in this third milestone:

  • improved normalization of BCP47 language tags
  • type/language-based filtering in Lucene full-text search
  • support for concurrent reads on a single connection
  • storing SHACL Shapes in user specified graphs docs
  • various performance improvements in Native/LMDB/Memory stores

For more details see the release notes.



Sat, Apr 9, 2022

RDF4J 3.7.7 is now available. This is a patch release fixing 2 bugs, including a potential security issue in our Spring dependencies.

For more details, have a look at the release notes.



Sun, Mar 27, 2022

RDF4J 3.7.6 is now available. This is a patch release fixing 4 bugs.

For more details, have a look at the release notes.



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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