The Internet Computer Protocol (ICP) has achieved impressive milestones since its launch in May 2021, including zero downtime, processing over three billion blocks, and securing over $3 billion in its Network Nervous System (NNS) DAO. The platform has also seen a surge in developer numbers and hosts popular applications such as DMail and OpenChat. The Year 4 roadmap for ICP focuses on Decentralized AI and Chain Fusion, with the goal of positioning ICP as a leader in these areas.