52. Continuous integration
In software engineering, continuous integration (CI) is the practice of merging all
developers' working copies to a shared mainline several times a day.[1]
https://en.wikipedia.org/wiki/Continuous_integration
53. Continuous deployment
Continuous deployment (CD) is a software engineering approach in which
software functionalities are delivered frequently through automated
deployments.[1][2][3]
https://en.wikipedia.org/wiki/Continuous_deployment