dotnet CLI/SDK and .NET runtime: Enable major roll-forward after a failed SDK upgrade?
When a .NET SDK upgrade fails, the CLI may still resolve to a newer SDK version if one is present, while applications continue to run on the existing runtime due to side‑by‑side installation. The roll‑forward policy allows an app targeting a specific runtime version to start on a newer patch or minor version, but major roll‑forward requires explicit opt‑in a
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