We have a Jira Scrum project, call it "ABC", that has years of issue history, and we are still working in this project. However, we would like to make substantial changes to the project's Fields, Screens, and Workflow to accommodate new ways of documenting our work. I'm wondering whether we can make these changes in our existing project without changing the historical record for older issues.
Is it possible to switch a project's screen scheme or Workflow and have the change only apply to certain issues within the project (e.g., those created after a certain date)?