Deprecating the ‘latest’ tag
We are deprecating the ‘latest’ tag across all our Windows base images to encourage better container practices. At the beginning of the 2019 calendar year, we will no longer publish the tag ; We’ll yank it from the available tags list.
We strongly encourage you to instead declare the specific container tag you’d like to run in production. The ‘latest’ tag is the opposite of specific; it doesn’t tell the user anything about what version the container actually is apart from the image name. You can read more about version compatibility and selecting the appropriate tag on our container docs .
https://techcommunity.microsoft.com/t5/containers/windows-server-2019-now-available/ba-p/382430#