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New features

  • New values for CLI option --std: lua54, lua54c
  • New lua54 standard library definitions


  • Lua 5.4 allows 31bits utf8 codepoint
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  • Caching now uses files in a global directory instead of local
    .luacheckcache file. Default cache directory is
    %LOCALAPPDATA%\Luacheck\Cache on Windows,
    ~/Library/Caches/Luacheck on OS X/macOS, and
    $XDG_CACHE_HOME/luacheck or ~/.config/luacheck on other systems.


  • Fixes for using Luacheck with Lua 5.4:
    • Parse 5.4 attributes in local declarations (but ignores them for now)
    • Luacheck itself can also run with Lua 5.4
  • Fixed randomize missing from busted set of standard globals (mpeterv#183).
  • Added additional table and thread definitions for ngx_lua.
  • Added additional match definition for busted.


  • Upgraded Windows binary components: Lua 5.3.4 -> 5.3.5,
    LuaFileSystem 1.6.3 -> 1.7.0.