上周我全新安装了 Ubuntu Server 22.04.1 LTS Minimal。我刚刚完成机器设置并配置了无人值守升级。在使用它进行试运行时，日志中unattended-upgrades --dry-run --debug显示。为什么它说 22.04.1 LTS 是开发版本？Running on the development release
sudo apt update用户 535733 的每个请求的完整输出
freek@raptor:~$ sudo apt update
[sudo] password for freek:
Hit:1 http://nl.archive.ubuntu.com/ubuntu jammy InRelease
Hit:2 http://nl.archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:3 https://download.docker.com/linux/ubuntu jammy InRelease
Hit:4 http://nl.archive.ubuntu.com/ubuntu jammy-backports InRelease
Hit:5 http://nl.archive.ubuntu.com/ubuntu jammy-security InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
2 packages can be upgraded. Run 'apt list --upgradable' to see them.
freek@raptor:~$
我注意到它只会说Running on the development release当Unattended-Upgrade::DevRelease设置auto为时/etc/apt/apt.conf.d/50unattended-upgrades，这是自 22.04 以来的默认设置