In which of the following situations is it acceptable to retain data beyond the stated policy?

While analytics models use historical data, this does not inherently justify retaining data beyond policy if it's not legally mandated or explicitly covered by an extended business purpose in the policy itself.

When there is a high probability of litigation, a legal hold is typically issued, which requires the organization to preserve all potentially relevant data, overriding standard data retention policies. This prevents spoliation of evidence that may be needed for legal proceedings.

Expected future regulations do not automatically justify retaining data beyond current policy; compliance would generally involve adjusting policies once regulations are enacted.

A database upgrade is an operational task that does not inherently change data retention requirements or policies.