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4.7. Use version control for your content as well as code - everyone watches the changes

Being able to roll back work encourages people to be bold and innovative. One of the currencies of project work is simply making a change to a codebase or a document as an explanation itself. Changes are self-evident in the commit itself. This is why all changes must be accompanied with a comment or summary that explains the reasons behind the change.
Equally important is that all project members watch these changes. Responding to the changes on a mailing list, bug report, or wiki discussion page keeps the discussion associated with the node of origin.
Example needed
For example, major design decisions need to ...