Manual backport of 48874 to release 9.0.3xx #50940
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baronfel
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Area-dotnet new
baronfel
added
needs team triage
MiYanni
approved these changes
Sep 25, 2025
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Customer Impact
Users that invoke a template directly from a local NuGet package (i.e.
dotnet new install <path to file>) can't install that package if the path contains::or@characters. This is a blocker for Azure Functions experiences in VSCode on macOS.To fix this, we detect if the user is requesting to install a versioned NuGet template from their feeds, or a specific local file. We only attempt our PackageId/Version splitting logic on the former kind of input.
Risk
Low - this code has been working in .NET 10 since this past spring.
Testing
New automated tests for this scenario work, and we've got evidence of it working for end users running 10.x