It is with great pleasure that we introduce the second edition of the Communications of the ACM Latin American Regional Special Section. In this edition, we use this opportunity to showcase some of the region's most interesting as well as impactful advancements in computer science. Latin America is a highly heterogeneous continent with great diversity in culture, geography, demography, ethnicities, languages, and science and technology. When it comes to computer science, Latin American researchers have made significant contributions to multiple areas, such as software engineering, databases, networking and distributed systems, artificial intelligence, computer theory, and computer science education. In this Regional Special Section, we present only a small portion of the work researchers in Latin America are currently conducting. To create this edition, we put out a general call for contributions, receiving submissions from all regions of the continent.

This is my last editorial as Editor-in-Chief of Communications,a so it is a moment to share learnings and, of course, to reflect on accomplishments. First, we launched the Regional Special Sections (RSS) in November 2018 with a spotlight on computing in the China Region. With 40 pages of articles, spanning tech idols to gaming to computing culture to fintech and "superAI," the first RSS created an excitement that inspired and challenged co-hosts of the Europe, India, East Asia and Oceania, Latin America, and Arabia Regions. In just three years, we have circumnavigated the globe,b and with the second Europe Region Section (April 2022) and India Region Section (November 2022), a new circuit is well under way! The RSS are an exciting read for the ACM community (great job by the co-hosts and authors), delivering news insights and perspectives into how computing is shaping and being shaped around the world.