Microsoft has issued a critical notice to .NET developers regarding the imminent shutdown of ‘azureedge.net’ domains, following the bankruptcy of CDN provider Edgio. The affected domains, “dotnetcli.azureedge.net” and “dotnetbuilds.azureedge.net,” will cease operations in early 2025, potentially disrupting numerous development workflows.

Key Impact Areas:
– .NET installers using affected domains
– GitHub Actions and Azure DevOps pipelines
– Docker configurations
– Custom scripts and code references

Required Actions:
1. Replace azureedge.net and dotnetcli.blob.core.windows.net references with builds.dotnet.microsoft.com
2. Update GitHub Actions and Azure DevOps tasks
3. Configure firewalls to allow traffic from new domains (builds.dotnet.microsoft.com and ci.dot.net)

Transition Details:
– Microsoft will utilize a combination of Edgio, Akamai, and Azure Front Door during the migration
– Azure DevOps Server updates expected in early 2025
– Microsoft has secured ownership of the affected domains to prevent security risks

While Microsoft owns the domains and has confirmed no third parties will access them, the company maintains that continuing to use these domains is not possible. The timing of this migration during the holiday season has raised concerns among IT teams, who must implement these changes while potentially understaffed.

Developers can track migration status and updates through Microsoft’s dedicated GitHub page.