OpenSSH 10.6 released

OpenSSH 10.6 has been released, adding the hybrid post-quantum ssh-mldsa44-ed25519 signature algorithm, a -p option for sftp's lmkdir/mkdir commands, and disabling the LZ77 dictionary coder in ssh and sshd to mitigate side-channel leaks (which reduces Compression option effectiveness). The scp -R option for remote-to-remote copies is being deprecated due to security risks and will be ignored in a future release. The project also noted a rise in AI-assisted security bug reports and expects to move to more frequent releases to ship fixes faster.

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