This document discusses CI/CD for React Native applications. It begins with an overview of CI/CD and existing tools like CircleCI, TravisCI, and Jenkins. The benefits of CI/CD are automation of linting, type checking, testing, building, and delivery. For React Native, CI/CD can be implemented with CircleCI to run jobs on commits and merges, including building variants, running tests, and delivering to external services. Fastlane is also discussed for matching certificates, building variants, and delivering to app stores. Open source React Native libraries and CircleCI orbs are mentioned. The document concludes with upcoming topics like quasi-continuous delivery at Facebook and code pushing at Microsoft.