News¶

April 4, 2008¶

Mulgara v1.2 has been released. This is the last significant release before version 2.0.

Main updates are:

• The Java Transaction Architecture JTA.
• Fixed a major problem in backups where the wrong transaction phase could be backed up instead.
• Improvements in RDF loading speed.
• Numerous bug fixes
• Several new APIs in preparation for version 2.0.

See the release notes for more details. Go to the download page for the full sources and distribution files.

January 06, 2008¶

Mulgara has moved. We are now co-hosted with the Topaz Project.

We've also taken advantage of this change to move to the open source
development tracking software Trac. There may be a few glitches while we sort
out the transition.

We'd like to thank the people at Topaz for their continued support.

November 15, 2007¶

Mulgara v1.1.1 has been released. This is a minor release.

Main updates are:

• Java 1.6 compatibility.
• Numerous resource leaks fixed.
• Several bug fixes around transactions.

Go to the download page for the full sources and distribution files.

July 16, 2007¶

Mulgara v1.1.0 has been released!

This release has a lot of significant changes. In future, the Mulgara team
hope to announce smaller incremental releases in the 1.1.x series.

Significant New features include:

• New Transaction framework fixing several Concurrent Modification bugs, and ensuring ACID compliance.
• A RelationalResolver that provides access to sql databases via a D2RQ mapping.
• A DistributedResolver allowing selections from multiple servers in one query, and also permitting insert/select queries between multiple servers.
• Updates to the TQL language, giving it Predicate-Object lists and Object lists, similar to SPARQL.
• Several significant bug fixes, improving stability, performance, resource consumption, and allowing operations which previously failed.

A special "Thank You" to Andrae Muys and Topaz for some of the bigger tasks in this release.

Go to the download page for the full sources and distribution files.

February 25, 2007¶

Several significant fixes went into Subversion this week. This includes a
problem that may have led to concurrent access exceptions in the past. If
possible, updating from SVN is advised.

These modifications will appear in the upcoming release. The release is being
held off until the key feature of model renaming has been completed, but we
anticipate an announcement in the next few weeks.

January 4, 2007¶

The new transaction architecture has now been merged into the main codebase.
This provides some major fixes, and allows overlapping access to multiple
Answers. There have been many queries about exceptions due to multiple
transactions, and this will address all of those issues. For more details see
the announcement here.

Thanks go to Andrae for putting in a serious effort for the design and
implementation. Thanks also to Netymon, Viewpoint Systems, and Bosatsu, who
all provided support to Andrae to get this done.

October 5, 2006¶

Version 1.0 of a real-time relational resolver has been added to Mulgara. This
resolver will permit the mapping of a relational schema into RDF via a D2RQ
V0.4 definition file. This allows relational data to be queried via Mulgara
alongside Lucene, XSD, and both external and internal RDF data sources.

Many thanks go to the Australian Defense Science and Technology Organisation
(DSTO) who funded the work, and especially to Andrae Muys who negotiated this
with the DSTO and implemented the code.

The code is currently available in Subversion, and will be included in the
next release of Mulgara.

August 19, 2006¶

Mulgara v1.0.0 has been released! This is the first release since the fork
from Kowari, and includes some much needed updates.

Go to the download page for the full sources and distribution files.