Changes in Bitvise SSH Client 9.51:
[...]
Bitvise SSH Server, SSH Client and FlowSsh now support hybrid post-quantum and classical key exchange using the key exchange methods mlkem1024nistp384-sha384 and mlkem768x25519-sha256. These key exchange methods use algorithms outside of Windows cryptography. They are only available when FIPS 140 cryptography mode is not enabled in Windows. The new algorithms require Windows Vista or newer.

https://bitvise.com/ssh-client-version-history
Хммм...

use algorithms outside of Windows cryptography
only available [...] not enabled in Windows
require Windows Vista or newer

Так оно аутсайд оф виндоуз крюптографи или нет? Если да, то почему Vista++ и при отключенной FIPS криптографии в винде?