Rasqal RDF Query Library - News

2005-04-10 Version 0.9.8 Released

Updated to SPARQL Query Language for RDF W3C Working Draft of 17 February 2005
Added casting to the engine and in SPARQL
Restructured query engine to be based on a tree of graph patterns
Constraints now work per-graph pattern
Added a Data Graph API
Query engine uses and binds graph names in queries (SPARQL LOAD, FROM and GRAPH)
Expanded the Graph Pattern API

See the 0.9.8 Release Notes for the full details of the changes.

2005-02-27 Version 0.9.7 Released

Fix a resource cleanup problem when query results were not fully read
Fixed some crashes in expression evaluation with invalid types
Added a graph pattern API to provide full access to the query structures
Added query methods to return just bound or all variables
Some updates for syntax changes of SPARQL Query Language for RDF W3C Working Draft of 17 February 2005
Portability fixes for win32 (Dave Viner)

See the 0.9.7 Release Notes for the full details of the changes.

2005-02-06 Version 0.9.6 Released

Added support and API calls for new query result forms graph and boolean
Added SPARQL CONSTRUCT, ASK result forms
Added 7 new SPARQL built-in functions
Allow UTF-8 and Unicode in prefixes and QNames in queries
Several other changes and bug fixes.

See the 0.9.6 Release Notes for the full details of the changes.

2005-01-16 Version 0.9.5 Released

Query engine refactored to execute over graph patterns
Added support for SPARQL optionals
Added formatting of query results according to the SPARQL Variable Binding Results XML Format, W3C Working Draft, 21 December 2004
Updated SPARQL to handle syntax changes
Many other improvements and fixes

See the 0.9.5 Release Notes for the full details of the changes.

2004-10-29 Version 0.9.4 Released

Fixed several crashes during query execution
Fixed some memory leaks when a query failed
Pass on internal raptor errors to rasqal users.

See the 0.9.4 Release Notes for the full details of the changes.

2004-10-25 Version 0.9.3 Released

License changed to LGPL 2.1/Apache 2
Added initial support for the W3C SPARQL Query Language for RDF, 2004-10-12 working draft
Queries can now be executed multiple times
Portability fixes for building on win32 (Chris Pointon)
Various roqet utility improvements

See the 0.9.3 Release Notes for the full details of the changes.

2004-08-03 Version 0.9.2 Released

Fix casts for C++
Add win32 skeleton header file
Fix a memory leak when using redland inside rasqal

See the 0.9.2 Release Notes for the full details of the changes.

2004-06-13 Version 0.9.1 Released

Added a query results class separate from the query class and moved all the results methods to the new class.
Made portability fixes for the generated RDQL lexer files

See the 0.9.1 Release Notes for the full details of the changes.

2004-05-15 Version 0.9.0 Released

First public release.

2003-08-12 Version 0.1.0 Released

Initial web site created. Nothing actually released.


Copyright 2003-2005 Dave Beckett, Institute for Learning and Research Technology, University of Bristol