Roblox's Lua Engine Evolution
2025-09-18
Since 2006, Roblox has used Lua 5.1 for game scripting. However, growing game complexity, team size, and internal codebase (over 1M lines of code by 2020) necessitated significant improvements to Lua's implementation and the language itself. These improvements focused on performance, ease of use, tooling, and the gradual introduction of a type system.
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(luau.org)
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