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New Features

Enhancements to 6.0-TP1

Currently best suited to developers, this introduces a new branch for Virtuoso with:

  • ANY ORDER Queries
  • Anytime Queries
  • Client-level resource accounting
  • Expressions in "IN" predicate
  • Facet Browsing Engine
  • Inverse Functional Property Value enhanced Identity
  • Key compression
  • Transitive subqueries in both SQL and SPARQL

For more details, see the release notes: https://sourceforge.net/project/shownotes.php?group_id=161622&release_id=677866

Other links:

Virtuoso Open Source Edition:

OpenLink Data Spaces:

OpenLink AJAX Toolkit (OAT):

OpenLink Data Explorer (Firefox extension for RDF browsing):

Enhancements to v5.0.11


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.
  • SPARQL and RDF
    - Added compiler extensions for SPARQL graph-level security
    - Added initial implementation of RDF graph-level security metadata functions
    - Added initial infrastructure for new SPARQL result serialization
    - Added support for SSG_VALMODE_SHORT_OR_LONG
    - Added support for define sparql-get:proxy for RDF mappers
    - Enhanced N3 syntax support
    - Added support for XML literals in RDF/XML, SPARQL XML resultset and JSON outputs
    - Enhanced speed of TTL output
    - Fixed SPARQL/SPARUL security
    - [[http://www.w3.org/TR/void/][VoID]] graph generation for describing Quad Store
  • Sponger Cartridges Related
    - Added U.S. Congress Web service
    - Added Del.icio.us Tag Lookup Meta Cartridge
    - Added GoodRelations and Barters for eCommerce Services
    - Added NYT Articles Lookup Meta Cartridge
    - Added OpenStreetMap Cartridge
    - Added O'Reilly Books Catalog Lookup Meta Cartridge
    - Added PowerPoint (PPTX) Cartridge
    - Added SCOT based Tag Cloud
    - Added Technocrati Lookup Meta Cartridge
    - Misc. fixes
    - Fixed GPF in rare case when using NOT FROM / NOT FROM NAMED
    - Fixed handling of class instance array
    - Fixed i18N issues with freetext search in RDF
    - Fixed i18N serialization of RDF/XML box
    - Fixed incorrect result when Accept is set to "text/rdf-n3"
    - Fixed passing retvals of variables from OPTION(), like ?SCORE ?x, from deeply nested subselects
  • ODS Applications
    - Added FOAF+SSL and FOAF+SSL+OpenID
    - Added Bibliographical ontology usage in ODS Graph
    - Added Calendar API and upstream commands
    - Added "One-Click" X.509 Certificate, Private Key generation plus Browser import, and write to FOAF profile
    - Added Messaging Services
    - Added Relationships Ontology terms to ODS-AddressBook for qualifying relationships in Social Network
    - Added Biographical Ontology terms added to Profile Page UI
    - Added Support for MS Live Contacts API
    - Additional Ubiquity commands for relationship qualification in Social Network data spaces
    - Added Support for Portable contacts api
    - Fixed OpenID registration/auth in FOAF+SSL+OpenID implementation


For more details, see the release notes: https://sourceforge.net/project/shownotes.php?group_id=161622&release_id=677418

Other links:

Virtuoso Open Source Edition:

OpenLink Data Spaces:

OpenLink AJAX Toolkit (OAT):

OpenLink Data Explorer (Firefox extension for RDF browsing):

Enhancements to v5.0.10

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 resultsetconstruction
  • 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

RDF Data Management & Data Access:

  • New Meta Cartridges for UMBEL, Calais, Zemanta, Hoovers and the New York Times
  • New Sponger cartridges for AB Meta, Last.FM, Twitter, Meetup.com, LibraryThing, SalesForce.com, RadioPop, Rhapsody
  • Added support for FOAF+SSL
  • New (X)HTML browser page for RDF Linked Data
  • SPASQL ExtendedString and RdfBox types in .NET
  • new CURIE-generation functions
  • Amazon S3 DET and WebDAV mounting
  • improved Turtle output presentation
  • Various SPARQL and SPARUL updates and extensions and fixes
  • Automated generating OWL from DB schema
    * Fixed memory leaks

OpenLink Data Spaces Application-suite:

  • New OAuth support
  • Support for foaf+ssl self-signed certificates written to in FOAF-based member profiles
  • Support for Amazon S3 folders in ODS-Briefcase
  • New contact fields in ODS-AddressBook
  • Ubiquity commands for interacting with all Data Spaces programmatically


For more details, see the release notes: https://sourceforge.net/project/shownotes.php?group_id=161622&release_id=660861

Other links:

Virtuoso Open Source Edition:

OpenLink Data Spaces:

OpenLink AJAX Toolkit (OAT):

OpenLink Data Explorer (Firefox extension for RDF browsing):

Enhancements to v5.0.9

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

There are also minor bug-fixes:

  • memory leaks
  • SQL query syntax handling
  • SPARQL 'select distinct'
  • XHTML and javascript validation and other UI issues in the ODS application suite

For more details, see the release notes: https://sourceforge.net/project/shownotes.php?release_id=626647&group_id=161622

Other links:

Virtuoso Open Source Edition:

OpenLink Data Spaces:

OpenLink AJAX Toolkit (OAT):

OpenLink Data Explorer (Firefox extension for RDF browsing):

Enhancements to v5.0.8

  • 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 de-referencing its own Proxy URIs)

On the ODS front, the following have been addressed:

  • More flexible Mapping service model based on new OAT-based Mapping Control (which also includes a "province" locator)
  • Improved SyncML integration with Briefcase folders
  • Gem URL fixes for Atom, RSS, and RDF feeds

Enhancements to v5.0.7


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

Improvements:

  • Better support for alternate RDF indexing schemes
  • Parallelization of RDF sponger operations across multiple RDF data-sources concurrently
  • New Sponger Cartridges and enhancements to the existing Cartridge collection
  • Inference engine optimizations for subclass and subproperty that efficiently handle taxonomies numbering tens of thousands of classes.
  • OWL equivalentClass and equivalentProperty inference support.
  • Dynamic handling of host component of IRIs; host component is now flexible enough to painlessly handle multiple homing of domains and host name component changes; no duplicate host name data storage required
    via [URIQA] section of INI
  • SPARQL optimizations to improve LIMIT and OFFSET handling
  • JDBC driver has new connect options, smaller memory footprint and optimized batch support
  • ODS applications now support SyncML

Documentation Additions:

  • How to read query plans and how to use the key performance meters
  • How to diagnose SPARQL queries and how to decide what indexing scheme is right for each RDF use case
  • How to debug RDF views
  • Better Documentation on SPARQL extensions and options
  • An updated RDF View example based on the Northwind demonstration database that reflects underlying enhancements

Bug Fixes:

  • Generally improved safety of built-in functions, better argument checking.
  • Verified UTF8 internationl character support in all RDF use cases, SQL client/SPARQL protocol/all data formats.
  • Generally improved safety of built-in functions, better argument checking.
  • Verified UTF8 internationl character support in all RDF use cases, SQL client/SPARQL protocol/all data formats.
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