Since its initial publication, this handbook has been an important reference for guardianship systems for unaccompanied children across the European Union (EU). It has supported national authorities, practitioners and policymakers in upholding the rights of some of the most vulnerable children, in line with EU law and international standards. This updated edition comes at a pivotal moment. The entry into application of the Pact in June 2026 marks an important step towards a more comprehensive framework for migration and asylum across the Union. It aims to prevent abuse of the asylum system, including through measures addressing misuse of provisions concerning unaccompanied children, and reinforce public trust in its functioning.