我正在尝试运行docker和docker-compose的最新稳定版本。

我正在按照https://docs.docker.com/engine/installation/linux/ubuntulinux/上的说明进行操作

显然，docker-compose的当前版本是1.7。

但是，在阅读了文档并安装docker-engine之后，我得到了：

$ docker-compose --version
docker-compose version: 1.4.0

和

$ docker --version
Docker version 1.11.1, build 5604cbe

当我尝试更新它时，得到以下信息：

$ sudo apt-get upgrade docker-engine
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... docker-engine is already the newest version.
Done

更新资料

这只会变得越来越陌生。在尝试了以下所有建议之后，我现在得到了：

$ docker-compose -v
The program 'docker-compose' is currently not installed. You can install it by typing:
sudo apt-get install docker-compose
anton@Charles:~$ sudo apt-get install docker-compose
Reading package lists... Done
Building dependency tree       
Reading state information... Done
docker-compose is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

那我该如何更新Docker？