- Update to version 2.4.0
* Added multi-threaded scanning support.
* Added version check for OpenSSH user enumeration
(CVE-2018-15473).
* Added deprecation note to host key types based on SHA-1.
* Added extra warnings for SSHv1.
* Added built-in hardened OpenSSH v8.5 policy.
* Upgraded warnings to failures for host key types based on SHA-1
* Fixed crash when receiving unexpected response during host key
test.
* Fixed hang against older Cisco devices during host key test &
gex test.
* Fixed improper termination while scanning multiple targets when
one target returns an error.
* Dropped support for Python 3.5 (which reached EOL in Sept.2020)
* Added 1 new key exchange: sntrup761x25519-sha512@openssh.com.