Upgrading will not activate the change in PoW rewards, it will only allow the consensus votes to take place.
Please read the release notes for all the details:
https://github.com/decred/decr...
升级不会激活战俘奖励的变化，它只允许进行协商一致投票。
有关所有详细信息，请阅读发行说明：
https://github.com/decred/decr...