PuTTY v0.80 Release-18.12.2023

New update:18.12.2023 
-Security fix: support for OpenSSH's new kex-strict protocol modification, 
addressing a vulnerability in some @openssh.com cipher and MAC modes, in particular ChaCha20+Poly1305. 
-Bug fix: the MSI-installed version of putty.exe can now find its help file again. 
-Bug fix: a server sending non-displaying terminal escape sequences such as ESC[0m now no longer resets the scrollback to the bottom of the window..