OpenBSD does great work, but for the record OpenSSH started as a fork of the free SSH program developed by Tatu Ylönen; later versions of Ylönen's SSH were proprietary software offered by SSH Communications Security.

https://en.wikipedia.org/wiki/OpenSSH

Realistically, OpenBSD completely reimplemented protocol 2 themselves.

Since nobody uses protocol 1 anymore, very little of the original code from Tatu Ylönen remains in operation with default settings.

ps I have had to use the SSH commercial release under VMS, and the compatibilities with OpenSSH are quite unpleasant.

i just read that page[1] earlier this week. this gives a great view on the amount of work performed by the openssh project after the fork of the last open source version.

[1] https://www.openssh.com/history.html

thanks for bringing this to our attention. fixed now: https://github.com/bob-beck/foundation-web/commit/d34479b48a...