The keynote speech discusses the evolution of UK merger control over the past two decades, focusing on ensuring open and effective competition in markets to benefit consumers with more choices and lower prices. The UK merger control regime, under the Enterprise Act 2002, emphasizes independence in decision-making, high-quality and objective assessments, and an evidence-based and proportionate approach to intervention in problematic cases. The Competition and Markets Authority (CMA) plays a crucial role in safeguarding free market dynamics and consumer welfare, promoting growth, innovation, and fair competition. The international dimension of merger control has become increasingly important due to globalization and Brexit, necessitating collaboration with international counterparts. Businesses can benefit from open communication between authorities reviewing the same transactions, facilitating aligned outcomes and timely assessments. Notably, the Microsoft/Activision case underscored the significance of addressing competition concerns in cloud gaming, leading to a more forward-looking approach in tech mergers to balance competition and innovation. Process reforms are being proposed to enhance the efficiency and transparency of merger investigations, with the Digital Markets, Competition and Consumers Bill introducing new merger reporting requirements for Strategic Market Status firms. Competition law advisors should stay informed about these changes to effectively navigate the evolving landscape of UK merger control.