private MessageAge determineAgeOfPayload(final int messageRoundNumber) {
    final int currentRoundNumber =
        currentRound.map(r -> r.getRoundIdentifier().getRoundNumber()).orElse(-1);
    if (messageRoundNumber > currentRoundNumber) {
      return MessageAge.FUTURE_ROUND;
    } else if (messageRoundNumber == currentRoundNumber) {
      return MessageAge.CURRENT_ROUND;
    }
    return MessageAge.PRIOR_ROUND;
  }
If the list of validators for the next block to be proposed/imported has changed from the
previous block, log the change. Only log for round 0 (i.e. once per block).

@param qbftRound The current round
consensus/qbft-core/src/main/java/org/hyperledger/besu/consensus/qbft/core/statemachine/QbftBlockHeightManager.java