In 2019, the field of Chaos Engineering matured significantly, shifting focus from understanding its necessity to effectively implementing it. This evolution was marked by the launch of Gremlin Free, a tool that enhances the capabilities of Netflix's Chaos Monkey by offering features such as broader cloud compatibility and additional attack modes like CPU stress tests. Furthermore, Gremlin introduced Scenarios, which are guided experiments for simulating real-world outages, and expanded Chaos Engineering practices to Kubernetes environments. The year also saw Gremlin achieve SOC II Type 2 certification, emphasizing its commitment to security. The company engaged extensively with its community, hosting Chaos Conf 2019, bootcamps, and talks worldwide, while growing its Chaos Engineering Community Slack to over 4,000 members.