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apt update && apt upgrade -> 软件包可以升级

tag-icon • tag-icon apt upgrade updates
apt update && apt upgrade -> 软件包可以升级

使用 Ubuntu 服务器 18.04。当我尝试使用“apt update && apt upgrade”时，收到警告：

1 package can be upgraded. Run 'apt list --upgradable' to see it.

如果我随后尝试建议，我会得到：

Listing... Done
libneon27/bionic-updates 0.30.2-3~ubuntu18.04.1 i386 [upgradable from: 0.30.2-2build1]
N: There is 1 additional version. Please use the '-a' switch to see it

出了什么问题（如果有的话）？

更新：“apt-cache 策略 libneon27”：

libneon27:
  Installed: 0.30.2-2build1
  Candidate: 0.30.2-3~ubuntu18.04.1
  Version table:
     0.30.2-3~ubuntu18.04.1 500
        500 http://mirrors.digitalocean.com/ubuntu bionic-updates/main i386 Packages
 *** 0.30.2-2build1 500
        500 http://mirrors.digitalocean.com/ubuntu bionic/main i386 Packages
        100 /var/lib/dpkg/status

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