Continuous Integration (CI) and Continuous Delivery (CD) are software development practices that aim to improve the quality and speed of software development by automating the process of building, testing, and deploying code changes.CI involves integrating code changes from multiple developers into a shared repository multiple times a day. As each change is integrated, automated tests are run to ensure that the code is functional and that it does not break any existing functionality.

CD builds on CI by automating the process of deploying code changes to different environments, such as test, staging, and production. This allows for faster and more frequent releases, as well as more reliable and predictable deployments.

Together, CI and CD can help teams to detect and fix issues early in the development process, improve collaboration and communication, and reduce the risk of errors and downtime in production.