Inspect the date, the original source and the exact question. A screenshot can omit a correction. Compare with independent evidence when available and say when evidence is missing. A newer page is not automatically better; relevance and support matter too.
Worked example
An old schedule may be accurate about last term but not the current meeting. Look for the organizer's current notice, then check whether later updates change it.
The Invented Club Notices
The club's original notice on May 1 says a meeting will be in Room 4. Its correction on May 3 changes the room to Room 8 and leaves the start time at 3 pm. A screenshot shared on May 4 shows only the May 1 notice. For this fictional exercise, the correction is authentic and no later update exists. Another page merely says the club is popular; it gives no schedule.