I use to add issue numbers in Git commits, to let Github make links from commits to issues and from issues to commits.
Is it also possible to do the same in tag messages towards milestones?
In my project, each release has a tag, and each release consists of a number of issues that are grouped in a milestone. Therefore a linked reference from the tag message to the milestone would be very useful.
As you can see on the Github Help Pages about possible references, there is no auto-linking for milestones as of today.