What systems do major software developers use?

Question

Wiki engines

Good afternoon friends, I have asked questions here many times about engines and project documentation. But so far I have not found a solution for myself.
Perhaps someone works in large companies and knows how it works.
How is documentation systematized, how are wikis formed or what are they used for? How the history of the entire development is conducted.
Who worked on large projects, please tell us.

Answer 1

Atlassian Confluence