What you need to know
A useful article can lose value when examples become outdated or the product interface changes. A refresh should make the answer more accurate and complete rather than just changing the published date.
How to apply it
Check search queries and reader feedback, verify every claim and link, add missing steps, update screenshots, and explain meaningful changes. Preserve the route if the page already has useful links.
Common mistake to avoid
Do not change dates to imply a review that did not happen. A superficial word-count increase does not improve a stale answer.