W3C home > Mailing lists > Public > www-rdf-interest@w3.org > November 2004

Sesame 1.1 released

From: Arjohn Kampman <arjohn.kampman@aduna.biz>
Date: Thu, 18 Nov 2004 15:47:36 +0100
Message-ID: <419CB608.1010403@aduna.biz>
To: www-rdf-interest@w3.org

Dear all,

It is with great pleasure that we are finally able to announce the
release of Sesame 1.1.

Sesame 1.1 is a stable, high-capacity, flexible framework for storing,
querying, and manipulating RDF and RDF Schema. Its main features include:

  - Runs on any Java 1.4 enabled platform.
  - Multiple backends: in-memory, RDBMS (MySQL, PostgreSQL, Oracle),
    native disk-based storage.
  - Highly scalable.
  - SeRQL query and transformation language.
  - RQL and RDQL query languages.
  - Rio RDF parser: fast parsing and writing of RDF/XML, N-Triples,
    Turtle and N3.
  - Stable high level access APIs allows easy, flexible integration in
    existing projects.
  - Flexible connectivity through direct Java access, RMI, or HTTP.
  - Inferencing support for RDF and RDFS semantics.
  - Easy to use Web interface.
  - Customizable inferencer for domain-specific entailments.
  - Ontology Management Module:
     - change tracking
     - fine-grained security

Highlights of release 1.1:

- The Graph API, an extension of Sesame's access APIs, allows
   fine-grained manipulation of RDF models directly from Java.

- The Native Disk Store is a new storage backend that works directly
   on the file system, without need for a DBMS. It uses B-Tree indexing
   on binary files for fast, efficient and scalable storage.

- SeRQL revision 1.1 is a syntax revision that makes SeRQL queries
   even easier to read and write, and makes embedding in XML easier.

- Blank node handling has dramatically improved compared to 1.0.x.

- Lots of issues related to full Unicode support have been fixed.

- RDF Schema inferencing has been updated to be fully compliant with
   the W3C RDF Semantics Recommendation.

- Support for MS SQL Server as storage backend RDBMS. Thanks to Adam
   Skutt for providing fixes and suggestions for this.

- The Rio parser now supports the Turtle serialization format.

- Partial OWL reasoning support through Sesame's custom inferencer.

- Fully updated and extended User Documentation, including code
   examples for use of the Sesame APIs and a new Troubleshooting

A long list describing the bug fixes and improvements can be found in
the ChangeLog, or in Sesame's issue tracker:


Please check out the upgrade documentation in doc/upgrade.txt before
upgrading an existing Sesame installation.

Thanks to everyone who has contributed to this release, and we hope to
receive your feedback and bug reports on the openRDF.org forum at:


As usual, download locations for Sesame 1.1 can be found at:


Regards and hope to be seeing you on the forum,

The Sesame development team

Aduna BV - http://aduna.biz/
Prinses Julianaplein 14-b, 3817 CS Amersfoort, The Netherlands
tel. +31-(0)33-4659987  fax. +31-(0)33-4659987
Received on Thursday, 18 November 2004 14:47:39 UTC

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