Issues and pull requests can be filtered based on the milestone they're associated with. Once you've associated an issue or pull request with a milestone, you can find items based on their milestones.
Tip: If you'd rather filter issues and pull requests using the Search bar, you can use the milestone search syntax. For a milestone called My Milestone, the search syntax would be:
To clear your filter selection, click Clear current search query, filters, and sorts.
On GitHub Enterprise, navigate to the main page of the repository.
Under your repository name, click Issues or Pull requests.
Next to the search field, click Milestones.
Choose a milestone to see which items it's associated with.