OpenSSH 9.9 released

The OpenSSH project has released version 9.9. This version includes support for the
new post-quantum cryptography standard from NIST.
The release also includes
the next step in the deprecation of DSA keys — they are now disabled by default at compile time,
and are expected to be removed entirely in early 2025. The release also contains the normal mixture of bug fixes and small usability improvements.