These features are new in 0.83 (released 2025-02-08):
- Support for ML-KEM, the NIST-standardised post-quantum key exchange mechanism. (In addition to NTRU Prime, which has been supported since 0.78.)
 - Support for full Unicode file names in Windows file selector dialogs. (However, these do not yet round-trip through a saved session.)
 - Bug fix: psftp -b works again.
 - Bug fix: assertion failure if an SSH connection times out at the login prompt.
 - Bug fix: crash in Pageant if an SSH connection is abandoned while waiting for a deferred decryption passphrase.
 - Bug fix: tight loop if PuTTY tried to send an empty answerback string.
 - Bug fix: accidental truncation of some configuration edit boxes' contents to 127 characters.
 - Bug fix: Windows XP support was accidentally broken, and now reinstated.
 - Bug fix: restored interoperation with third-party tools that auto-fill login prompts by sending ^M for Return.
 - Bug fix: confusion when terminal window resized by tools like FancyZones.
 - Bug fix: the small keypad keys didn't reliably work in the terminal on Unix.
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