Continuous deployment for large monorepos

Uber has reimagined its continuous deployment (CD) strategy to improve the automation, safety, and user experience of managing its numerous microservices, especially those within large monorepos. They transitioned to using a unified CD system, Up CD, which integrates closely with existing testing and monitoring tools. This shift has resulted in a significant increase in automated deployments and a reduction in production incidents, despite an increase in the number of changes being deployed. New mechanisms were also introduced to mitigate risks associated with widely-shared code changes.