Freshness in SEO is relative to the search result, not the calendar. Update content when it has been overtaken, not just got old.
“Fresh content” ranks highly in search, but it’s far from the case that the newer page wins and the older page always fades. Freshness is not really an absolute age. It is relative to the quality of everything else available. A page from several years ago can still be the best answer if the question has not changed much, and nobody has produced anything more useful since.
Equally, a page from last month can feel out of date if the topic has moved on and the competing pages now reflect that movement better. That distinction is important for B2B marketers, because it stops us from confusing “updating content” with “improving content”.
Changing a date at the top of a page is not a content strategy. What matters is whether an updated page answers the search better than the alternatives.
Instead of automatically rewriting old pages, we should look at important search terms and compare what is ranking now. Are competitors covering newer regulations or more recent market assumptions? Are the top results now answering a slightly different question from the one we originally attempted to answer?
This is where many content maintenance calendars waste effort. They refresh content because the calendar says it’s time, not because the search result says the page has fallen behind. The result is often a lot of movement with very little progress.
Instead, keep an eye on the pages that already matter. Compare them with what is ranking around them. Look for evidence that the market, the query or the competing answers have changed. Then update when there is something genuinely useful to add. Page performance in Google Search Console can be a very good pointer here.