Additional workflow conditions, validators and post functions. Bulk copy, a transition summary tab & map custom fields.
Check out these:
JSU for Jira Server / Jira Data Center
JSU for Jira Cloud
Simplify the management of multi language pages with Language Switch for Confluence.
Check out the:Language Switch for Confluence documenation
Use your multiple Jira instances form one driver's seat.
Check out the documentation:Federation for Jira