Currently using licensed Edition of SonarQube Developer package. Configured to run with PostgresSQL as DB engine and SonarQube is 8.4 version. I want to test the new features & version on different instances but using the same license manager. Please suggest how to use my existing license for test purpose? and also can we use the same DB instances with different SonarQube server?
You’re going to have to request new/trail licenses for your tests.
With SonarQube in a way the DB is the instance. Configure your sonar.properties to point to a new DB and you’ll see all new data in it. (Note that you’ll need to delete $SONARQUBE-HOME/data/es6 when you do that so the Elasticsearch indices will be rebuilt against the new DB.)