The main content Menu would have the following content:

• References
  • Changelog
  • TYPO3 Explained [main][12.4][11.5]
  • TCA Reference [main][12.4][11.5]
  • TypoScript Reference [main][12.4][11.5]
  • TSconfig Reference [main][12.4][11.5]
  • ViewHelper Reference [main][12.4][11.5]
• Guides
  • Getting started [main][12.4][11.5]
  • Localization [main][12.4][11.5]
  • Upgrade Guide [main][12.4][11.5]
  • Editors Guide [main][12.4][11.5]
  • Exceptions
• Tutorials
  • Sitepackage Tutorial [main][12.4][11.5]
  • TypoScript Tutorial [main][12.4][11.5]
• System Extensions
  • Adminpanel [main][12.4][11.5]
  • SEO [main][12.4][11.5]
  • ...
• Third Party Extensions
• Contribution
  • Core
  • Documenation
  • typo3.org
  • ...