We just updated to Tahoe and having same issue; works with CLI and hangs with Xcode 26.3 and 26.4. Note via the CLI we see: ** WARNING: connection is not using a post-quantum key exchange algorithm. ** This session may be vulnerable to "store now, decrypt later" attacks. ** The server may need to be upgraded. See https://openssh.com/pq.html So perhaps Xcode also sees this warning and is having issues parsing it? Edit: I tried suppressing the warnings (via ~/.ssh/config see https://jira.atlassian.com/browse/BCLOUD-23914) and whilst that did get rid of the CLI message Xcode still hangs.

Same thing is happening to me. I set up an iOS 17.5 phone and chose it. That worked.

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