AllegroGraph 3.0 Change History

Table of Contents

Version 3 History

Major New Features

New Features and Improvements

Incompatible Changes

Java API Changes

Version 2 History

Changes from 2.2.4 to 2.2.5

Changes from 2.2.3 to 2.2.4

Changes from 2.2.2 to 2.2.3

Changes from 2.2.1 to 2.2.2

Changes from 2.2 to 2.2.1

Changes from 2.1 to 2.2

Changes from 2.0.1 to 2.1

Changes from 2.0 to 2.0.1

Changes from 1.2.6 to 2.0

Version 1.0 History

Changes from 1.2.5 to 1.2.6

Changes from 1.2.4 to 1.2.5

Changes from 1.2.3 to 1.2.4

Changes from 1.2.2 to 1.2.3

Changes from 1.2.1 to 1.2.2

Changes from 1.2.0 to 1.2.1

Changes from 1.1 to 1.2

Changes from 1.0 to 1.1

Version 3 History

Major New Features

New Features and Improvements

SPARQL updates

Incompatible Changes

Java API Changes

New classes:

This new behavior is similar but not identical to earlier namespace behavior.

There is no Java access to the global namespace definitions in Lisp. The global namespace definitions in Lisp have no effect on the Java client interface.

NEW Methods in class AllegroGraph:

NEW Methods in Class AllegroGraphConnection

Bug Fixes (partial list):

Version 2 History

Changes from 2.2.4 to 2.2.5

SPARQL

Lisp

Java

Changes from 2.2.3 to 2.2.4

Enhancements

SPARQL / twinql
Lisp / AllegroGraph Core

Bug Fixes

Java
SPARQL / twinql

Changes from 2.2.2 to 2.2.3

Bug Fixes

Changes from 2.2.1 to 2.2.2

Enhancements

Bug fixes

Changes from 2.2 to 2.2.1

Enhancements

Bug fixes

Changes from 2.1 to 2.2

Major Changes

Lisp
New Features
New functions
API Changes and Improvements

Bug fixes

SPARQL
RDFS++ Reasoner
Java

Changes from 2.0.1 to 2.1

General

We have improved AllegroGraph's string dictionary usage and the speed of its internal hashing Algorithms. These improve performance on all platforms but allow for dramatic speed increases under 32-bit Windows. Unfortunately, these changes mean that triple-stores built with previous versions of AllegroGraph will no longer operate with AllegroGraph 2.1. If you have triple-stores that you would like to migrate from an earlier version to version 2.1 (rather than rebuilding your stores from your original data), you will need to export your data and import it into the new format. If you find yourself in this situation, please contact support@franz for assistance before you begin the process.

Performance improvements
Bug fixes

Java-specific

Major Changes
Minor Changes
Bug fixes

Changes from 2.0 to 2.0.1

New functionality

SPARQL / twinql improvements

Fixes

Removed or deprecated functionality

Known problems

Java Specific Changes

New functions and improvements
Fixes

Changes from 1.2.6 to 2.0

Major improvements and changes

Miscellaneous changes

API improvements and additions

Java related

The AllegroGraph Java API in Version 2.0 is similar to the API in Version 1.2, but many method signatures have changed because the implementation of the triple store has been revised extensively. All 1.2 application programs need to be inspected carefully and revised accordingly.

Major change summary:

Version 1.0 History

Changes from 1.2.5 to 1.2.6

Changes from 1.2.4 to 1.2.5

Changes from 1.2.3 to 1.2.4

Changes from 1.2.2 to 1.2.3

Changes to the Java interface:

Changes from 1.2.1 to 1.2.2

Changes to the Java interface:

Changes from 1.2.0 to 1.2.1

Changes to the Java interface:

Changes from 1.1 to 1.2

Major changes and enhancements

AllegroGraph is now integrated with TopBraidComposer and can run as a service accessible to Java programmers using either JLinker or a direct socket interface.

AllegroGraph now comes with a full SPARQL implementation via its twinql sub-system. See the AllegroGraph SPARQL tutorial, the twinql API reference manual, and the release notes for more details.

Minor changes and enhancements

Changes from 1.0 to 1.1

Major changes

We are now using a faster mechanism to store and retrieve URI information. The new method also uses much less memory so that larger RDF files can be loaded.

The triple store disk format has changed between release 1.0 and release 1.1. Release 1.1 will not read 1.0 triple stores. The easiest thing to do is to recreate your databases with the new version. Please contact us (support@franz.com) if you need assistance in converting your 1.0 triple stores into the new format. The section on "Savings Triples to a file" below may also be helpful.

Minor changes

Minor Enhancements ¯

Changes in the Java Interface