The Apache Jena development community is pleased to
announce the release of Apache Jena 4.9.0.
In this release:
* New in-memory graph implementations
* Important update to Fuseki UI.
Switch from TriplyDB/(yasr,yasqe) to zazuko/(yasr,yasqe)
This changes picks up some security fixes in yasr and
Fuseki users are advised to upgrade to get these fixes.
* Prepare for Jena5:
Deprecate JSON-LD 1.0 constants
Deprecate API calls that may be removed.
== Notes
All issues:
https://s.apache.org/jena-4.9.0-issues
There is a CHANGES.txt in the root of the repository
with the history of previous announcement messages.
== Jena5
Plans for jena5 include:
* Require Java17
* Move from javvax.servlet.* to jakara.servlet.* (Jetty11)
* Drop JSON-LD 1.0 subsystem.
It will not happen until after Java21 is released in
keeping with the policy of supporting two java versions.
Jena 4.9.0 is built for a minimum of Java11.
It has been tested on Java17 and Java21 EA.
==== Items in this release
Arne Berdhardt
https://github.com/apache/jena/issues/1912
New implementations of in-memory graphs with better storage and performance.
See the issue for performance details.
See GraphMemFactory for access to these new graph implementations.
Arne has also provided a performance analysis and improvements for the existing default in-memory graphs together with a benchmarking framework
https://github.com/apache/jena/pull/1279
--
Switch from TriplyDB/(yasr,yasqe) to zazuko/(yasr,yasqe)
to pick up fixes.
Thank you Zazuko!
This changes picks up some security fixes in yasr and users are advised to upgrade to get these fixes.
--
SERVICE on/off control
https://github.com/apache/jena/pull/1906
Provide the ability to switch off all SERVICE processing completely.
Use
Code: arq:httpServiceAllowed
or http://jena.apache.org/ARQ#httpServiceAllowed=false
to disable.
e.g.
fuseki-server --set arq:httpServiceAllowed=false ....
--
Additional restrictions and control for SPARQL script functions
https://github.com/apache/jena/pull/1908
There is a new Jena context setting
http://jena.apache.org/ARQ#scriptAllowList
which is on the command line:
arq:scriptAllowList
and java constant
ARQ.symCustomFunctionScriptAllowList
Its value is a comma separated list of function names.
"function1,function2"
Only the functions in this can be called from SPARQL.
As in Jena 4.8.0, the Java system property "jena:scripting" must also be set to "true" to enable script functions.
Website (when published):
https://jena.apache.org/documentation/query/_javascript_-functions
--
Track RDF 1.2 and SPARQL 1.2
Specific SPARQL 1.2 parser, tracking the RDF-star working group.
All features are also available in the default SPARQL parser.
--
Ryan Shaw(@rybesh)
new Turtle RDFFormat
https://github.com/apache/jena/issues/1924
--
Simon Bin (@SimonBin)
A fix for incorrect integer cast in scripting.NV
https://github.com/apache/jena/pull/1851
--
Alexander Ilin-Tomich (@ailintom)
Fix for SPARQL_Update verification and /HTTP PATCH
--
Ryan Shaw (@rybesh)
Script fix for additional classpath elements
https://github.com/apache/jena/pull/1877
--
FusekiModules:
Issue: https://github.com/apache/jena/issues/1897
There is a change in that the interface for automatically loading modules from the classpath has changed to FusekiAutoModule, The interface FusekiModule is now the configuration lifecycle only. This is to allow for programmatically set up a Fuskei server with
Fuseki modules, including custom one from the calling application.
== Obtaining Apache Jena 4.9.0
* Via central.maven.org
The main jars and their dependencies can used with:
<dependency>
<groupId>org.apache.jena</groupId>
<artifactId>apache-jena-libs</artifactId>
<type>pom</type>
<version>4.9.0</version>
</dependency>
Full details of all maven artifacts are described at:
http://jena.apache.org/download/maven.html
* As binary downloads
Apache Jena libraries are available as a binary distribution of
libraries. For details of a global mirror copy of Jena binaries please see:
http://jena.apache.org/download/
* Source code for the release
The signed source code of this release is available at:
http://www.apache.org/dist/jena/source/
and the signed master source for all Apache Jena releases is available
at: http://archive.apache.org/dist/jena/
== Contributing
If you would like to help out, a good place to look is the list of
unresolved JIRA at:
https://https://github.com/apache/jena/issuesissues-current
or review pull requests at
https://github.com/apache/jena/pulls
or drop into the dev@ list.
We use github pull requests and other ways for accepting code:
https://github.com/apache/jena/blob/master/CONTRIBUTING.md
