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Happy end of July!

In accordance with Zeus's law, the Luau team is bringing forth another exciting release! 🌩️⚡️

General

  • Added the ability to parse config files from bytecode rather than source!
  • Fixups for DenseHash2
  • More optimizations for the export keyword
  • More internal refactoring and development to support cyclic module dependencies for exported modules

Analysis

  • Zero-argument type functions no longer break when exported, resolving https://github.com/luau-lang/luau/issues/2554
  • Enable type function evaluation in fragment autocomplete, so:

    :::lua type function test(ty: type) return types.unionof(types.singleton('test'), types.singleton('test2')) end

    local a: test<number> = 'test' -- autocomplete now shows up when adding quotes or filling the word "test" in

Runtime

  • Add bytecode version for double-precision vector constants + options fix
  • Switch Luau C Closure debugname from const char* to TString*
  • Luau NCG: fixed an issue where linear code blocks generated unreachable code
  • Luau NCG: improved spill restore location hints which should reduce spill slot pressure
  • Luau NCG: improved unnecessary tag check removal optimization
  • Fixed https://github.com/luau-lang/luau/issues/1893

And, as always, thanks to all our contributors!

Co-authored-by: Annie Tang annietang@roblox.com Co-authored-by: Ariel Weiss arielweiss@roblox.com Co-authored-by: Hunter Goldstein hgoldstein@roblox.com Co-authored-by: Ilya Rezvov irezvov@roblox.com Co-authored-by: Jason Rodrigues jrodrigues@roblox.com Co-authored-by: Phil Pizlo fpizlo@roblox.com Co-authored-by: Sora Kanosue skanosue@roblox.com Co-authored-by: Thomas Schollenberger tschollenberger@roblox.com Co-authored-by: Vighnesh Vijay vvijay@roblox.com Co-authored-by: Vyacheslav Egorov vegorov@roblox.com

Full Changelog: https://github.com/luau-lang/luau/compare/0.731...0.732

Source: README.md, updated 2026-07-31