This year has seen regulatory developments affecting M&A. The DOJ unveiled its Safe Harbor Policy, offering the presumption of a declination to acquiring companies if they voluntarily disclose misconduct of the acquired company. The Federal Trade Commission and DOJ worked to update merger guidelines, with proposed changes related to the effect a merger may have on labor markets. Meanwhile, we delved into the compliance risks in M&A in Asia, and examined penalties imposed on Credit Suisse and Flutter Entertainment in connection with business entities they acquired. In this retrospective issue, we highlight our in-depth coverage, including lessons learned and practical takeaways, on M&A compliance developments.