Comment Re:Mac OS has already started to pester me (Score 1) 64
That's in all of the latest versions of ssh, which is or can be installed on more than just Macs. For example, the latest version of RHEL has that warning too.
The warning can be disabled through the WarnWeakCrypto option in ssh_config, if you wish. Obviously that doesn't actually "fix" the issue that is being warned about, but that hide the warning and avoids having it continually popping up.