None of these has anything to do with Agile nor XP.
This are CI/CD technologies, and perfectly fit into a waterfall deployment too.
This are CI/CD technologies, and perfectly fit into a waterfall deployment too.
From Wiki:
"In 1994, Grady Booch used the phrase continuous integration in Object-Oriented Analysis and Design with Applications (2nd edition)[8] to explain how, when developing using micro processes."
Cruisecontrol and XP were building on an already known concept. By 2001 hardware also became cheap enough to have a dedicated build servers.
The XP community sometimes give a distorted view of waterfall. It present waterfall as a dogmatic approach run by incompetents. In reality waterfall was a lot more advanced, with testing, build tools and a phased delivery approach.