While both services share the same underlying technology—VS Code running on Linux—the move to GitHub introduced several shifts:
Current users were invited to join the GitHub Codespaces beta. Visual Studio Codespaces is moving to GitHub
The migration followed a phased decommissioning of the Azure-based service: Visual Studio Codespaces is moving to GitHub
The service became read-only; users could no longer create new plans or codespaces. Visual Studio Codespaces is moving to GitHub
The original Azure offering allowed for more granular manual control over instance sizes at creation, a feature that was later streamlined in the GitHub implementation . How to Migrate Code
The Visual Studio Codespaces portal was fully retired, and all remaining data was deleted. Major Differences and Improvements