emqx/changes/ce/feat-9893.zh.md

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当使用 `clean_start=false` 标志连接时EMQX 将会从消息队列中过滤出被封禁客户端发出的消息,使它们不能被下发给订阅者。
此前被封禁客户端发出的消息仍可能在这一场景下被下发给订阅者。