There are two functionally equivalent versions of app, please use the correct one for your version of Jira / Jira Service Desk: 

Jira

Jira Service Desk version

App version

8.x.x4.x.x4.x.x
7.8.0-7.13.133.11.0 - 3.16.143.x.x

See the following topics for more details: