- update to 1.17.0
- drop old_openssl.patch
* Added support for “reverse direction” SSH connections, useful to support
applications like NETCONF Call Home, described in RFC 8071.
* Added support for the PyCA implementation of Chacha20-Poly1305, eliminating
the dependency on libnacl/libsodium to provide this functionality,
as long as OpenSSL 1.1.1b or later is installed.
* Restored libnacl support for Curve25519/Ed25519 on systems which have
an older version of OpenSSL that doesn’t have that support.
This fallback also applies to Chacha20-Poly1305.
* Disabled the use of RSA SHA-2 signatures when using the Pageant or Windows 10
OpenSSH agent on Windows, since neither of those support the signature
flags options to request them.
* Fixed a regression where a callable was no longer usable in the
sftp_factory argument of create_server.