In this edition of SubTel Forum, we delve into the theme of 'System Upgrades' within the submarine telecommunications industry. The issue explores various aspects of upgrading optical submarine networks, highlighting the potential and possibilities that come with enhancing cable systems. Key articles discuss the importance of reach, reliability, and return on investment—the 3R's crucial to achieving optimal subsea architecture. As SubTel Forum celebrates 11 years of excellence, this issue reflects on the magazine's journey and its role in providing valuable insights and updates to professionals in the submarine optical fiber sector. With contributions from industry experts, this edition promises to offer a comprehensive overview of the latest trends and advancements in submarine network upgrades.