群晖 hyper backup vault 7.1.0 备份到 6.2.3 报错，提示 Hyper Backup Vault 需要更新

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备份的时候报错，提示目标机器需要升级，也就是 6.2.3 版本的机器需要升级到 7.1 把

[Network][Synology NAS 918] Exception occurred while backing up data. (The version of Hyper Backup Vault or DSM on the backup destination is too old. Please upgrade Hyper Backup Vault or DSM on the backup destination to the latest version.)

不是很想升级，有其他版本吗？

hyper backup 只支持相同版本的群晖备份吗？不能跨版本吗

backup Hyper vault 群晖