Acceptance log for policies

Currently in SecFix you can see if employees have accepted the latest policy version. As policies are living documents, we will update them from time to time. Currently after an update, the acceptance rate is 0% and there is no prove the anyone has ever accepted to policy.
It would help, if there was an acceptance log. E.g. employee XYZ accepted V1 of the policy on date dd.mm.yyyy. V2 not accepted so far.
This would help greatly in last minute changes between stage 1 and stage 2 audits, an acceptance rate of 70% looks better, if I can show that 25% of the rest have accepted the previous version.