News

RDF4J 4.2.3 is now available. This is a patch release fixing 9 issues.

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

RDF4J 4.2.2 is now available. This is a patch release fixing 3 bugs.

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

RDF4J 4.2.1 is now available. This is a patch release fixing 11 bugs, 3 of which are security fixes.

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

RDF4J 4.2.0 is now available. This is a minor release with performance improvements, bug fixes and a new feature to allow for custom SPARQL aggregate functions together with implementations for standard deviation and variance.

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

RDF4J 4.1.3 is now available. This is a patch release fixing 5 bugs.

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

RDF4J 4.1.2 is now available. This is a patch release fixing 6 bugs.

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

RDF4J 4.1.1 and 4.0.5 are now available. RDF4J 4.1.1 is a patch release fixing 13 bugs and 1 security vulnerability (CVE-2020-36518 in FasterXML Jackson Databind). Two of the issues fixed in 4.1.1, including the security vulnerability, have been backported and released as 4.0.5.

For more details, have a look at the 4.1.1 release notes and 4.0.5 release notes.

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.

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.

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.