3. Support and Contributing# 3.1. RTEMS Project Support 3.1.1. Users Mailing List 3.1.2. Documentation 3.1.3. All Mailing Lists 3.1.4. Discord 3.2. Report Bugs 3.2.1. Search for Existing Bugs 3.2.2. Not RTEMS Bugs 3.2.3. Creating Good Bug Reports 3.2.4. Nobody Fixes my Bug 3.3. Contributing 3.3.1. How to Contribute? 3.3.2. Preparing and Submitting Merge Requests 3.3.3. Checklist for Merge Requests 3.3.4. Review Process 3.3.5. Updating a Merge Request 3.3.6. Rebasing a Merge Request 3.3.7. Approvers 3.3.8. Why Contribute? 3.3.9. Common Questions and Answers 3.4. Commercial Support Services