This story was originally published on HackerNoon at: https://hackernoon.com/how-i-tracked-and-retired-out-of-support-net-runtimes-across-legacy-iis-servers.
Audit and remove vulnerable .NET runtimes without breaking production. A practical guide to inventory, mapping IIS apps, and planning safe cleanup.
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A security alert exposed multiple out-of-support .NET Core runtimes across legacy IIS apps. This article recounts the full audit—scanning runtimeconfig files, mapping them to IIS sites, prioritizing upgrades or retirements, and safely removing outdated runtimes without breaking production.