Jira App:

Teamworkx OTRS Integration for Jira at the Atlassian Marketplace

OTRS Package:

OTRS VersionLatest OPM Package
OTRS 3.1JIRAPackage-2.0.0.opm ((warning) Unsupported)
OTRS 3.2JIRAPackage-3.3.8.opm ((warning) Unsupported)
OTRS 3.3JIRAPackage-3.3.8.opm ((warning) Unsupported)
OTRS 4
OTRS 5
OTRS 6

JIRAPackage-6.1.0.opm ((tick) Supported)

((info) Compatible up to Jira 8.22)

OTRS Demo Package for complex mapping functions:

OTRS VersionLatest OPM Package
OTRS 3.2

JIRADemoPlugins-1.0.9.opm ((warning) Unsupported)

can be used as an example code to implement more complex mappings than already supported.

OTRS REST Webservice:

VersionYML
OTRS with REST

GenericTicketConnectorREST.yml

This is included in the JIRAPackage and will be automatically installed.