GHEC enterprise owners may now verify domains across their enterprise account and restrict email notifications to addresses within those domains. This feature expands upon the existing organization verified domains functionality, allowing the email notification restrictions to apply to specific organizations or the entire enterprise.
Temporary interaction limits for user accounts
We've added temporary interaction limits to user accounts. Users can set temporary limits on who can interact with their public repositories for up to six months. You can use them to force a cool-down period during heated discussions, or prevent spam or abuse.
Learn more about the GitHub Interaction Limits for user accounts