Nothing could be more critical in the current world of IT than fast and reliable application development and delivery in support of business performance. This report, based on Q3 2021 research, shines a spotlight on accelerating trends such as platform teams, integrated security, site reliability engineers (SREs), and decentralization. The report also exposes areas of breakage and disruption as many IT organizations continue to struggle in their search for more cohesive approaches to application optimization.