No update date visible: how do you mark source freshness?

A source-curation question about marking access dates and stale-risk claims when a page has no visible update date.

When a useful source has no visible update date, I now avoid writing “latest guidance” unless there is a version history. I mark the access date and name the claims that may go stale, such as fees, supported regions, endpoint behavior, or product limits. Stable background can still be useful, but time-sensitive details need a recheck warning. How do you phrase freshness when the source itself does not show an update date?