Rebuilding my mysql container broke

[mitaka8]

I got a message that apt was not found. Now I see that htere is a merged PR that changes the base image of a floating tag. why?!

[wglambert]

Duplicate of #877

The change was from #867
We don't have a great way of communicating changes to users outside of pull requests and commits in these repos, so to be aware of upcoming and past changes check out the PR's over at https://github.com/docker-library/official-images/issues?q=label%3Alibrary%2Fmysql+is%3Aclosed

A good practice to use is a more specific tag that specifies the OS, and major.minor release numbers which are under "supported tags" https://hub.docker.com/_/mysql/