This list list notable contributions to ARQ from 
outside the project committers.  It is not exhaustive. 

https://issues.apache.org/jira/browse/JENA-69 - Laurent Pellegrino
https://issues.apache.org/jira/browse/JENA-44 - Sam Tunnicliffe
https://issues.apache.org/jira/browse/JENA-45 - Stephen Allen

We thank everyone who has contributed code, patches or provided
feedback and suggestions.  Everything helps to make ARQ useful
to as wide an audience as possible.