Terminal mouse tracking: support for mouse movements which are
not drags, and support for horizontal scroll events (e.g.
generated by trackpads).
Fixed: PuTTY could fail an assertion if a resize control
sequence was sent by the server while the window was docked to
one half of the screen in KDE.
Fixed: PuTTY could fail an assertion if you tried to change the
font size while the window was maximised.
Update to release 0.78
Support for OpenSSH certificates, for both user
authentication keys and host keys.
New SSH proxy modes, for running a custom shell command or
subsystem on the proxy server instead of forwarding a port
through it.
New plugin system to allow a helper program to provide
responses in keyboard-interactive authentication, intended to
automate one-time password systems.
Support for NTRU Prime post-quantum key exchange,
Support for AES-GCM (in the OpenSSH style rather than
RFC�5647).
Support for more forms of Diffie-Hellman key exchange: new
larger integer groups (such as group16 and group18), and
support for using those and ECDH with GSSAPI.
Bug fix: server-controlled window title setting now works
again even if the character set is ISO 8859 (or a few other