PUTTY, a client for SSH, Telnet, Rlogin, and Supdup protocols, has just released version 0.83. The project, formed under the license MIT, includes a built-in terminal emulator and works on UNIX-like systems and Windows. The initial texts of the project are available here.
The latest version, 0.83, introduces support for key exchange based on the ml-kem (Crystals-kyber) algorithm, designed for resistance on quantum computers. ML-KEM utilizes cryptography methods rooted in lattice theory problems, with solution times consistent across ordinary and quantum computers. Additionally, the update includes support for files with Unicode symbols not found in the system’s code page, specifically in the Windows Platform dialogue (although such names are not yet supported when saving sessions).