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This isn’t going to break any of the crazy code we gave to teams to associate connections with requests using async locals right?

If you mean hacks like #63159 (comment), those will still work as the connection itself is still used within the async scope of the request's SendAsync (write calls on HTTP/1 at least, which is what that hack relies on).

For things like the connection establishment itself, this PR doesn't change anything, and we have some tests that verify events like ConnectionEstablished happen within the request's scope.

/azp run runtime-libraries-coreclr outerloop-linux

The HTTP/3 test failure is related. Either a test bug or there's still some place where we capture the context there. Setting to draft for now before I get to investigate.

Draft Pull Request was automatically closed for 30 days of inactivity. Please let us know if you'd like to reopen it.