The NetHack DevTeam is announcing the release of NetHack 3.6.4 on December 18, 2019

NetHack 3.6.4 is the official release of NetHack that follows NetHack 3.6.3. This release corrects an exploitable buffer overflow during config file processing that was present, but undiscovered, in NetHack 3.6.0, 3.6.1, 3.6.2, and 3.6.3.

You are encouraged to update to NetHack 3.6.4 as soon as possible.

Here's a brief synopsis of the dozen or so bug fixes included in NetHack 3.6.4:

• fix potential buffer overflow when parsing run-time configuration file
• GDBPATH and GREPPATH from sysconf or -D... on compilation command line were being processed even if PANICTRACE was disabled but only being freed at end of game when that was enabled
• fix the article used in the message when your steed encounters a polymorph trap
• allow teleporting onto the vibrating square
• message "your knapsack can't accomodate any more items" when picking stuff up or removing such from container was inaccurate if there was some gold pending; vary the message rather than add more convoluted pickup code
• dozen-ish assorted spelling/typo fixes in messages and source comments
• wizard mode wishing for terrain would leave it unmapped if done while blind
• wizard mode terrain wish could leave hero in water (severe vision limits) or in lava (trapped, sinking) which wasn't there any more
• flying hero can go down (via '>') holes or trap doors instead of escaping trap
• polymorphed hero hiding on the ceiling can now use '>' to unhide instead of being told "you can't go down here"
• fix compilation on platforms that split the ncurses and tinfo libraries
• Windows: allow all game files to be on a portable device via the sysconf option 'portable_device_paths'

All of the fixes have been incrementally published on the public Git repository for the game. A more complete list can be found in the game's sources in doc/fixes36.4. As usual, a warning that some entries in that file may also be "spoilers".

Existing saved games and bones files from 3.6.0 through to 3.6.3 should work with 3.6.4, assuming the same build configuration options were used.

As with all releases of the game, we appreciate your feedback. Please submit any bugs using the problem report form. Also, please check the "known bugs" list before you log a problem - somebody else may have already found it.

Happy NetHacking!

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