The cause of stale documentation? Not writing documentation.
According to this saying, the fix to stale documentation is (often implied) to not write documentation. Can't go stale if it doesn't exist!
The above saying is so often used as an excuse to write no documentation so much that while stale documentation can provide more acute pain than no documentation, the chronic pain of no documentation is a cure worse than the disease.
Ah I can totally see how my simple statement can imply that I would advocate for no documentation. This wasn't my intention. I think it's important to provide all team members with resources and guidance on how to maintain documentation so that it doesn't go stale. Documentation requires extra time and maintenance but providing tools to decrease the effort to ensure that written documentation doesn't go stale is important for every technical team leader to do.
According to this saying, the fix to stale documentation is (often implied) to not write documentation. Can't go stale if it doesn't exist!
The above saying is so often used as an excuse to write no documentation so much that while stale documentation can provide more acute pain than no documentation, the chronic pain of no documentation is a cure worse than the disease.