New Issues Created in a Long lived Branch

I am part of Sophos Technologies and we are using the Enterprise Edition 7.7 * (build 23042)

  • [LGPL v3] Community
    I am trying to get all the new Issues created for a branch. If the branch (yyy) was created about 6 months back and has a master branch (xxx). How do i find all the new issues that are part of new branch xxx.
    The new issues are seen only for the latest build that is run for every day.
    We would like to know all the new issues that are created by the new branch so that they are resolved in the same Branch.
    We are extracting the issues in to elasticsearch for analytics and this data that is crtical for our visualizations.