you can also patch and compile https://github.com/devinteske/apple/commit/296d954851dbba238...

Or if you're on linux https://github.com/gdestuynder/openssh-portable/commit/bb0e9...

Or if you use gnupg https://github.com/gdestuynder/gnupg-agent-notification/comm...

Or if you use Windows and Putty https://github.com/gdestuynder/putty-pagent-notification (binary https://github.com/gdestuynder/putty-pagent-notification/rel...)

that's all i found