[AaronFriel]

For runtimes with tooling like .NET has, it's a niche use case.

At $dayjob, we have to support non-current compilers/SDKs for five different languages and runtimes where our tool will invoke (shell out, often) the CLIs for those tools. When triaging a bug report, it's great to have a version manager to use exactly the customer's version of the CLI.

Likewise, we need to make sure all of our examples and templates build even if the user has an old version, and the surest way to validate that is to hide newer CLIs and tools, and to test on the range of binaries that a customer could have installed.