Does Upsource use JIRA REST API or the deprecated SOAP & XML-RPC Interface? To me it looks like it is using the SOAP & XML-RPC interface. Unfortunately they have been removed in JIRA 7. Atlassian is encouraging all developers to use REST APIs. I believe this is the reason why I can't get the integration of Upsource into our Atlassian-dominated developer tools to work.
Any ideas about this?