We release several times a week, and keeping the documentation aligned with the product is becoming increasingly difficult. Code changes go through a clear review process, but documentation updates are less consistent. For example, a parameter or response field may change, the release ships, and weeks later we discover that examples still describe the old behavior. We have tried adding documentation to the pull request checklist, but engineers often do not know which pages might be affected. What processes or tools have worked well for keeping documentation current?
4 Answers
A checklist alone is easy to overlook, especially when nobody knows which pages are affected. Search the documentation during review, generate reference material from the API schema where possible, and add automated checks for examples, parameters, and response fields. Drift detection can also flag pages that may have become stale after a code change.
Treat documentation as a deliverable of the change, not a follow-up task. Keep the docs source in the same repository as the code, require updates in the same pull request, and publish both from the same version or commit. That keeps the documented interface tied to the artifact users actually receive.
Make documentation part of the definition of done or the ticket itself. A release should not be considered complete until the relevant docs have been reviewed and published. Some teams also update the docs first, then implement the code to match them, which helps make the intended behavior explicit.
Align the documentation publishing pipeline with the application deployment pipeline. If the docs are built from the same repository and tied to the same commit or release artifact, it becomes much harder for the site to describe a different version than the one running in production. Build checks or internal automation can block a release when required documentation is missing.
This is especially useful for references people do not realize exist. It is not perfect, but automated drift checks catch much more than relying on engineers to remember every affected page.