I do not consider it necessarily a bug so I did not send this bugs@, but this did impact ProxyJump in my ~/.ssh/config. I'd formerly had:
ProxyJump host, anotherhost This currently/now fails with "Invalid ProxyJump". Re-checking the ssh_config manual page though I saw the clarification of "separated by comma" - not "comma and whitespace". That combined with IRC pointing me here got me back running again once I removed the whitespace and went to: ProxyJump host,anotherhost Not a complaint just wanted to make breadcrumbs for anyone else searching for the same new behaviour.
