What is the difference between Continuous Integration and Continuous Deployment?

Continuous Integration (CI) is the practice of frequently merging code changes into a shared repository. Automated tests are run to catch integration issues early. Continuous Deployment (CD) takes CI a step further by automatically deploying the tested code changes to production-like environments. It ensures that software is always ready for release, reducing manual intervention and minimizing the time between code changes and their availability to users.