Docker run pulls old image(1.4) not the latest version(2.0)

According to the instruction in below,

I tried to install, but got the old version.

My procedure

docker run --name mattermost-dev -d --publish 8065:80 mattermost/platform

then it shows

Mattermost 1.4.0
Build Number:5232
Build Date:Thu Jan 14 23:10:40 UTC 2016
Build Hash:8089487d5caccbc642e9fef8ee0e5930ff1e639d

Do I have to put the “latest” tag for above docker command ?
In that case, please update official instruction.