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.
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.