For organisations still running Drupal 7, the challenge is often less about whether to upgrade and more about how to modernise without disrupting critical business operations. Niels de Feyter, founder and lead developer of CodeLift, argues that successful upgrades depend on preserving a system's observable behaviour while modernising its underlying platform. In this interview with The Drop Times, he discusses verification, migration complexity, ageing infrastructure, AI-assisted development, and the risks organisations face as legacy systems grow older.