• OpenSSL support for symmetric ciphers (#507)
• rewritten vt100 terminal emulator (File_ANSI) (#689)
• agent-forwarding support (System_SSH_Agent) (#592)
• Net_SSH2 improvements
  • diffie-hellman-group-exchange-sha1/sha256 support (#714)
  • window size handling updates (#717)
• Net_SFTP improvements
  • add callback support to put() (#655)
  • stat cache fixes (#743, #730, #709, #726)
• add "none" encryption mode to Crypt_RSA (#692)
• misc ASN.1 / X.509 parsing fixes (#721, #627)
• use a random serial number for new X509 certs (#740)
• add getPublicKeyFingerprint() to Crypt_RSA (#677)