CI/CD, or Continuous Integration/Continuous Delivery (sometimes also called Continuous Deployment), is a set of DevOps practices that aim to automate and streamline the software development and delivery process.
Continuous Integration is the practice of merging code changes from multiple developers into a single, shared repository as frequently as possible, ideally multiple times a day. This helps to identify and resolve conflicts and issues early in the development cycle.
Continuous Delivery is the practice of automating the process of releasing software to production as soon as it passes the necessary quality checks. This involves automating the testing, building, and deployment of software, and enabling frequent and reliable releases.