Hi @riteshshah
In general a plugin needs to update its API usages. Please refer to the https://developer.atlassian.com/platform/marketplace/dc-apps-platform-7/ to find out what API has changed. Perhaps the most notable change is migration to REST v2, that is also described on the page.
JSW may prepare their own changes. To have the full information what you need to do, I would recommend checking Preparing for Jira Software 10.0 and Jira Service Management 6.0 - multiple EAPs coming your way and perhaps asking question there.