OpenLink Virtuoso (Open-Source Edition) / News: Recent posts

New Release: 7.1.0

OpenLink Software is pleased to announce a new release of Virtuoso
Open-Source Edition, version 7.1.0.

For more details, see the release notes:
https://sourceforge.net/projects/virtuoso/files/virtuoso/7.1.0/README-7.1.0.txt/view

Other links:

Virtuoso Open Source Edition:
Home Page: http://virtuoso.openlinksw.com/wiki/main/
Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload

Posted by iODBC Maintainer 2014-02-17

New release: 6.1.8

OpenLink Software is pleased to announce a new release of Virtuoso
Open-Source Edition, version 6.1.8.

For more details, see the release notes:
https://sourceforge.net/projects/virtuoso/files/virtuoso/6.1.8/README-6.1.8.txt/view

Other links:

Virtuoso Open Source Edition:
Home Page: http://virtuoso.openlinksw.com/wiki/main/
Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload

OpenLink Data Spaces:
Home Page: http://virtuoso.openlinksw.com/wiki/main/Main/OdsIndex
SPARQL Usage Examples (re. SIOC, FOAF, AtomOWL, SKOS): http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef

Posted by Patrick van Kleef 2013-12-11

New Release: 7.0.0

OpenLink Software is pleased to announce a new release of Virtuoso Open-Source Edition, version 7.0.0.

For more details, see the release notes:
https://sourceforge.net/projects/virtuoso/files/virtuoso/7.0.0/README-7.0.0.txt/view

Other links:

Virtuoso Open Source Edition:
Home Page: http://virtuoso.openlinksw.com/wiki/main/
Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload

OpenLink Data Spaces:
Home Page: http://virtuoso.openlinksw.com/wiki/main/Main/OdsIndex
SPARQL Usage Examples (re. SIOC, FOAF, AtomOWL, SKOS): http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef

Posted by Tim Haynes 2013-08-02

New release: 6.1.7

OpenLink Software is pleased to announce a new release of Virtuoso
Open-Source Edition, version 6.1.7.

For more details, see the release notes:
https://sourceforge.net/projects/virtuoso/files/virtuoso/6.1.7/README-6.1.7.txt/view

Other links:

Virtuoso Open Source Edition:
Home Page: http://virtuoso.openlinksw.com/wiki/main/
Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload

OpenLink Data Spaces:
Home Page: http://virtuoso.openlinksw.com/wiki/main/Main/OdsIndex
SPARQL Usage Examples (re. SIOC, FOAF, AtomOWL, SKOS): http://virtuoso.openlinksw.com/wiki/main/Main/ODSSIOCRef

Posted by Tim Haynes 2013-07-22

New release: 6.1.6

OpenLink Software is pleased to announce a new release of Virtuoso,
Open-Source Edition, version 6.1.6.

For more details, see the release notes:

https://sourceforge.net/projects/virtuoso/files/virtuoso/6.1.6/README-6.1.6.txt/view

Other links:

Virtuoso Open Source Edition:
* Home Page: http://virtuoso.openlinksw.com/wiki/main/
* Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload... read more

Posted by iODBC Maintainer 2012-08-01

Switching source code development to GIT

OpenLink Software is pleased to announce it has switched the development of Virtuoso Open-Source Edition over to Git:

GitHub: <http://github.com/openlink/virtuoso-opensource>
Sf.net: <http://virtuoso.git.sourceforge.net/git/gitweb.cgi?p=virtuoso/virtuoso-opensource>

Developers who want to actively track progress of the Virtuoso source
code and contribute bug fixes or enhancements to the project, are
cordially invited to join us there.... read more

Posted by iODBC Maintainer 2012-03-23

New release: 6.1.5

OpenLink Software is pleased to announce a new release of Virtuoso,
Open-Source Edition, version 6.1.5.

For more details, see the release notes:

https://sourceforge.net/projects/virtuoso/files/virtuoso/6.1.5/README-6.1.5.txt/view

Other links:

Virtuoso Open Source Edition:
* Home Page: http://virtuoso.openlinksw.com/wiki/main/
* Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload... read more

Posted by iODBC Maintainer 2012-03-15

New release: 6.1.4

OpenLink Software is pleased to announce a new release of Virtuoso,
Open-Source Edition, version 6.1.4.

For more details, see the release notes:
https://sourceforge.net/projects/virtuoso/files/virtuoso/6.1.4/README-6.1.4.txt/download

Other links:

Virtuoso Open Source Edition:
* Home Page: http://virtuoso.openlinksw.com/wiki/main/
* Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload... read more

Posted by iODBC Maintainer 2011-10-31

New release: 6.1.3

OpenLink Software is pleased to announce a new release of Virtuoso,
Open-Source Edition, version 6.1.3.

For more details, see the release notes:
https://sourceforge.net/projects/virtuoso/files/virtuoso/6.1.3/releasenotes-6.1.3.txt/download

Other links:

Virtuoso Open Source Edition:
* Home Page: http://virtuoso.openlinksw.com/wiki/main/
* Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload... read more

Posted by iODBC Maintainer 2011-03-30

New Release: 6.1.2

OpenLink Software is pleased to announce a new release of Virtuoso,
Open-Source Edition, version 6.1.2.

For more details, see the release notes:
https://sourceforge.net/projects/virtuoso/files/virtuoso/6.1.2/releasenotes-6.1.2.txt/download

Other links:

Virtuoso Open Source Edition:
* Home Page: http://virtuoso.openlinksw.com/wiki/main/
* Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload... read more

Posted by iODBC Maintainer 2010-07-09

New Release: 6.1.1

OpenLink Software is pleased to announce a new release of Virtuoso,
Open-Source Edition, version 6.1.1.

For more details, see the release notes:
https://sourceforge.net/projects/virtuoso/files/virtuoso/6.1.1/releasenotes-6.1.1.txt/download

Other links:

Virtuoso Open Source Edition:
* Home Page: http://virtuoso.openlinksw.com/wiki/main/
* Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload... read more

Posted by iODBC Maintainer 2010-03-30

New Release: 6.1.0

OpenLink Software is pleased to announce a new release of Virtuoso,
Open-Source Edition, version 6.1.0.

For more details, see the release notes:
https://sourceforge.net/projects/virtuoso/files/virtuoso/6.1.0/releasenotes-6.1.0.txt/download

Other links:

Virtuoso Open Source Edition:
* Home Page: http://virtuoso.openlinksw.com/wiki/main/
* Download Page: http://virtuoso.openlinksw.com/wiki/main/Main/VOSDownload... read more

Posted by iODBC Maintainer 2010-02-10

OpenLink Virtuoso (Open-Source Edition): New Release: v5.0.11

Virtuoso is a scalable cross-platform server that combines SQL/RDF/XML Data Management with Web Application Server and Web Services Platform functionality.

OpenLink Software is pleased to announce a new release of Virtuoso,
Open-Source Edition, version 5.0.11.

This version includes:

* Database engine
- Added x.509 Certificate Generation & Management functions
- Improvements to session-handling (strses) to avoid temp-files and
improve threading support
- Added initial support for gzipped stream session
- Added support for HTTP, socks4 and socks5 proxying with
authentication options
- Added support for URIQA methods in http_client()
- Added support for gunzip in http_client
- Various fixes for FT optimization, fractions in datetime,
checkpoint-rollback and the compile/build process.... read more

Posted by Tim Haynes 2009-04-23

Announcing OpenLink Virtuoso, Open-Source Edition, v5.0.10

OpenLink Software is pleased to announce a new release of Virtuoso,
Open-Source Edition, version 5.0.10.

This version includes:

Database:
* Initial support for JDBC 4.x in the JDBC Driver
* Self-signed certificates and optional client-verification in HTTPS
* HTTP ACLs for rate-limiting
* A new `TOP(N, -1)' function for skipping N rows prior to resultset construction
* New INI-file options LiteMode and DisableTcpSocket for thinner embeddable RDF or SQL RDBMS operation, RdfFreeTextRulesSize and IndexTreeMaps for better memory control
* Fixes for a deadlock handler bug and various 64-bit issues and compiler warnings
* Performance optimizations in the core database engine... read more

Posted by Tim Haynes 2009-02-17

Announcing OpenLink Virtuoso, Open-Source Edition, v5.0.9

OpenLink Software is pleased to announce a new release of Virtuoso, Open-Source Edition, version 5.0.9.

This version includes significant performance optimizations to the SQL Engine, SPARQL+RDF Engine, ODBC and JDBC drivers.

New features include:
* An Excel mime-type output option in the SPARQL endpoint
* Enhanced triple options for bif:contains plus new options for transitivity
* New RDF-izer Cartridges for the Sponger RDF Middleware Layer
* Incorporation of UMBEL lookups and Named Entity Extraction into RDF-izer Cartridges
* Support for very large HTTP client requests
* A sparql-auth endpoint with digest authentication for using SPARUL via SPARQL Protocol
* New commands for the Ubiquity Firefox plugin... read more

Posted by Tim Haynes 2008-11-06

Announcing OpenLink Virtuoso, Open-Source Edition, v5.0.8

OpenLink Software is pleased to announce a new release of Virtuoso, Open-Source Edition, version 5.0.8.

This version focuses on performance optimizations and speed
enhancements:

* SQL compiler is now re-entrant
* Self-Join optimizations exposed at JDBC Driver level (as was already the case with ODBC)
* SPARQL engine and SPARQL-BI extension optimizations have been merged
* TriG serialization format for RDF is now supported alongside RDFa, N3, Turtle, and RDF/XML
* Additional Sponger Cartridges for Digg, FriendFeed, and CrunchBase
* Improved graph quality and fidelity from existing Cartridges (especially Freebase, eBay, Amazon, Google, Yahoo, and many others)
* Improved handling of and bug fixes relating to the `OPTIONAL' SPARQL keyword
* Self-Dereferencing fixes (e.g., Sponger was not properly dereferencing its own Proxy URIs)... read more

Posted by Tim Haynes 2008-08-28

Announcing OpenLink Virtuoso Open-Source Edition, v5.0.7

OpenLink Software is pleased to announce a new release of Virtuoso, Open-Source Edition, version 5.0.7.

This release includes:

New: fully operational Native Graph Model Storage Providers for the Jena & Sesame Frameworks.

Licensing change: the Jena and Sesame providers have been added to the "Client Protocol Driver exemptions" paragraph in the VOS License: http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VOSLicense... read more

Posted by Tim Haynes 2008-07-18

Announcing OpenLink Virtuoso, Open-Source Edition, v5.0.6

OpenLink Software is pleased to announce a new release of Virtuoso, Open-Source Edition, version 5.0.6.

On the RDF side, the bitmap intersection join has been optimized so that it is now typically twice as efficient as an equivalent nested loop join.

In some cases XML trees in the object position in RDF quads were incorrectly indexed, leading to failure to retrieve quads. This is fixed and should problems occur in existing databases, they can be corrected by simply dropping and re-creating an index.... read more

Posted by Tim Haynes 2008-03-28

New Release: v5.0.5

OpenLink Software is pleased to announce a new release of Virtuoso, Open-Source Edition, version 5.0.5.

The previous release, 5.0.4, was short-lived due to a problem in SPARQL-to-SQL code-generation, so this announcement addresses the new features introduced over and above version 5.0.3:

In the core Database Engine:
Added the LUBM benchmark for RDF data managers to testsuite; a check for backup/restore status; optimizations and an inxop option for bitmap indexes.... read more

Posted by Tim Haynes 2008-02-12

New Release: v5.0.3

OpenLink Software is pleased to announce a new release of Virtuoso, Open-Source Edition, version 5.0.3.

New features by functionality realm are as follows:

Web Server:
HTTP 1.1 compliant Transparent content-negotiation in URL-rewrite rules for Linked Data Deployment.

RDF Data Management:

New providers for the Jena, Sesame and Redland frameworks; support for SPARQL INSERT and UPDATE via HTTP POST; a new "rdf_sink" folder for handling HTTP PUTs into WebDAV that automatically sync with Quad Store. There are new Sponger cartridges to handle Amazon book-search, OAI and XBRL and Yahoo finance data sources. There performance optimizations for SPARQL `DESCRIBE' and `CONSTRUCT', alongside general performance enhancements for RDF data set loading.... read more

Posted by Tim Haynes 2007-12-12

New Release: v5.0.2

All,

OpenLink Software are pleased to announce a new release of Virtuoso, Open-Source Edition, version 5.0.2.

Features and Enhancements associated with this release include:

* 64-bit Integer Support
* RDF Sink Folders for WebDAV - enabling RDF Quad Store population by simply dropping RDF files into WebDAV
* SPARUL implementation optimizations
* Enhanced typed literal support in SPARQL e.g xsd:string() and xsd:boolean()
* Additional automatic metadata extraction from Audio binary files
* Support for PHP 5.2 runtime hosting
* Enhanced UI for RDF Linked Data deployment via URL-rewrite rules
* New Sponger Cartridges for Facebook, Freebase, Wikipedia, GRDDL, RDFa, eRDF, and more
* Demonstration Database includes RDF Views & SQL Table samples for the THALIA data-integration benchmark and testsuite
* Tutorial Application includes Linked Data style RDF Views for the Northwind SQL DBMS schema (which is the same as the standard Virtuoso demo database schema)
* A new Amazon EC2 Image variation of Virtuoso with a fully configured instance comprising the Virtuoso core, OpenLink Data Spaces application suite and the OpenLink Ajax Toolkit.... read more

Posted by Tim Haynes 2007-10-02

New release: 5.0.1

OpenLink Software are pleased to announce a new release of Virtuoso, Open-Source Edition, version 5.0.1.

This version includes:

* An enhanced cost-based optimizer
* Use of fixed rather than dynamically generated statistics, enhancing the Inference Engine
* Added larger sample in query cost model sampling
* Enhanced SPARQL support:
* Added wide row BREAKUP function to Virtuoso SQL enabling further optimization of RDF Views of SQL data
* Added support for LIMIT and OFFSET clauses to CONSTRUCT and DESCRIBE
* Significant performance optimizations
* Added QUAD MAP <...> { ... } group pattern which adds granularity to "Triple Provenance" management
* Documentation updates
* Significant update of all ODS applications
* Added compliance with the latest SIOC vocabulary
* Added Calendar Data Space for managing events and exposing data as RDF
* Added OpenID login and registration
* Added new SIOC spec subclasses which exploit Virtuoso's RDF-inference engine
* Added AddressBook Data Space for managing Social Networks via SIOC
* Other bug fixes... read more

Posted by Tim Haynes 2007-06-01

New release: 5.0.0

OpenLink Software are pleased to announce a new release of Virtuoso, Open-Source Edition, version 5.0.0.

This version includes:

* Significant rewrite of database engine resulting in 50%-100%
improvement on single CPU and in some cases up to 300% on multiprocessor
CPUs by decreasing resource-contention between threads and other optimizations.
* Radical expansion of RDF support including
- In-built middleware (called the Sponger) for transforming non-RDF
into RDF "on the fly" (e.g. producing Triples from Microformats, REST-style
Web Services, and (X)HTML etc.)
- Full Text Indexing of Literal Objects in Triple Patterns (via
Filter or magic bif:contains predicate applied to Literal Objects)
- Basic Inferencing (Subclass and Subproperty Support)
- SPARQL Aggregate Functions
- SPARQL Update Language Support (Updates, Inserts, Deletions in SPARQL)
- Improved Support of XML Schema Type System (including the use of
XML Schema Complex Types as Objects of bif:xcontains predicate)
- Ehancements to the in-built SPARQL to SQL Compiler's Cost Optimizer
- Performance Optimizations to RDF VIEWs (SQL to RDF Mapping)
* Various bug-fixes... read more

Posted by Tim Haynes 2007-04-10

New Release: 4.5.7

OpenLink Software are pleased to announce a new release of Virtuoso, Open-Source Edition, version 4.5.7.

This version includes the following enhancements:
* RDF storage now uses bitmap indexing by default;
* RDF Views functionality for exposing SQL Data on the fly as RDF Instance Data for SPARQL Query Access is now stable;
* Declarative N3/Turtle-based syntax for declaring RDF VIEWs of SQL Data is now stable;
* SPARQL extensions for automatic crawling of related resources now implemented;
* Miscellaneous SMP-related engine improvements.... read more

Posted by Tim Haynes 2006-12-06

New Release: 4.5.6

Hi,

OpenLink Software are pleased to announce a new release of Virtuoso, Open-Source Edition, version 4.5.6.

This version includes the following enhancements to the core Universal Server Engine:

* New declarative RDF Views language for generating "Virtual RDF Graphs" from SQL data, by mapping SQL to RDF in real time. This means that any relational data stored in Virtuoso or any other relational database can be converted seamlessly to RDF and queried with SPARQL without making an RDF copy of the data itself
* Enhanced RDF Triple Store
* Support for the RDF NET Protocol for reading and writing to Triple Store
* Support for the Semantic Bank Protocol for reading and writing to Triple Store (Virtuoso is now a bona-fide PiggyBank backend)
* SPARQL Processor performance-enhancements
* New AJAX-based Interactive SPARQL Query GUI
* Added 'dataspace' SPARQL storage with an example for users/groups
* Bitmap index support - This is a generic SQL and engine enhancement that delivers dramatic space-savings and incresed performance especially in RDF triple-storage and many business-intelligence workloads.
* Documentation updates covering: RDF APIs, the ATOM and GData protocols
* Runtime hosting for PHP5 in addition to PHP4
* Online Documentation and Tutorials now mapped to SIOC ontology thereby presenting documentation as an RDF data-set accessible to SPARQL Queries
* Engine enhancements including automatic background compaction for up to 30% less space usage for typical relational or RDF databases, better SMP behavior with shorter critical sections, fixes in transaction logic and more
* Fixed a GPF on nesting calls to bif_exec.... read more

Posted by Tim Haynes 2006-11-01