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Note: Fixed conflicts by hand in: - Analysis/src/ConstraintGenerator.cpp - CodeGen/src/OptimizeConstProp.cpp - VM/src/lmathlib.cpp - tests/Conformance.test.cpp
a03c92095f6 #unflagged CLI-141149 Added lua_clonetable (#97902) d66c43f36aa #flagged CLI-140903: Do not crash on duplicate keys in table literals (#97833) 8a2687f1690 #nonprod Luau: fix a test configuration issue breaking OSS CI. (#97878) 7add6d9dde9 #nojira CI-debugger revert #unflagged CLI-132461 Luau: refactor subtyping to also include the generic mapping it came up with. (#97872) 0c731fd3cc4 #flag-removal Clip `LuauNewSolverVisitErrorExprLvalues` (#96942) 2fe783b9615 #unflagged CLI-132461 Luau: refactor subtyping to also include the generic mapping it came up with. (#97803) 0cc41a0afae #unflagged CLI-141053 Luau buffer readbits/writebits implementation for big endian machines (#97826) ae50bf04f99 #nonprod CLI-140027 Simplify require-by-string path resolution, fix bug when running CLI tools on unprefixed path (#97468) 77004599a6f #flag-removal Cleanup Luau VM and Compiler flags (#97799) 86777e269dd #flag-removal Remove LuauUserTypeFunPrintToError, LuauUserTypeFunNoExtraConstraint, LuauUserTypeFunUpdateAllEnvs, LuauUserTypeFunThreadBuffer and LuauUserTypeFunExportedAndLocal (#97624) 349b133fdc4 #nojira CI-debugger revert #unflagged CLI-132461 Luau: refactor subtyping to also include the generic mapping it came up with. (#97759) 2e820646ffa #flagged CLI-139615: Treat user defined type functions as opaque in eqSatSimplify (#96897) c0845205e37 #flag-removal CLI-140688 Clean up `FFlagLuauIntersectNormalsNeedsToTrackResourceLimits` as `true`. (#97719) 3e07876a043 #flagged CLI-140571: Track interior free table types generated during constraint solving (#97498) 199b558dc36 #unflagged CLI-132461 Luau: refactor subtyping to also include the generic mapping it came up with. (#95646) fd9255f62d3 #nonprod CLI-140762 unittest for fragment ac crash (#97669) e9c710e017f #flag-removal FFlagLuauStoreCommentsForDefinitionFiles (#93359) b184b940d55 CLI-140702 #unflagged Fix most clang-tidy warnings in TypeChecker2 (#97604) 1fc857f1bb3 CLI-140489 #unflagged Fix a potential hash collision bug in StringCache. (#97539) 58f62f900a2 #nonprod Some new unit testing macros for Luau tests. (#97336) ab43a354b25 #flag-removal Remove LuauVectorMetatable and LuauVectorDefinitionsExtra (#97528) c4c28694390 #flagged CLI-140485 Do not retain the Def/RefinementKey arenas when retainFullTypeGraphs is false (#97422)
This test fails due to a bad interaction when `FFlagLuauStoreCSTData` is enabled, whilst `FFlagLexerFixInterpStringStart` is disabled. The OSS test suite, when run with `--fflags=true`, enables all flags starting with a `Luau` prefix, but does not enable any other flag. To resolve this, we explicitly enable both fflags for the failing interpolated string test cases. As a consequence, we technically lose the check that these tests pass when all flags are disabled.
vegorov-rbx
approved these changes
Mar 28, 2025
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After a very auspicious release last week, we have a new bevy of changes for you!
What's Changed
Deprecated Attribute
This release includes an implementation of the
@deprecatedattribute proposed in this RFC. It relies on the new type solver to propagate deprecation information from function and method AST nodes to the corresponding type objects. These objects are queried by a linter pass when it encounters local, global, or indexed variables, to issue deprecation warnings. Uses of deprecated functions and methods in recursion are ignored. To support deprecation of class methods, the parser has been extended to allow attribute declarations on class methods. The implementation does not support parameters, so it is not currently possible for users to customize deprecation messages.General
New Type Solver
~nilrefinements.len<>now works on metatables without__lenfunction.AST
AstTypeUnionandAstTypeIntersection.Transpiler
Parser
Autocomplete
Internal Contributors
Co-authored-by: Andy Friesen afriesen@roblox.com
Co-authored-by: Ariel Weiss aaronweiss@roblox.com
Co-authored-by: Aviral Goel agoel@roblox.com
Co-authored-by: Hunter Goldstein hgoldstein@roblox.com
Co-authored-by: Sora Kanosue skanosue@roblox.com
Co-authored-by: Talha Pathan tpathan@roblox.com
Co-authored-by: Varun Saini vsaini@roblox.com
Co-authored-by: Vighnesh Vijay vvijay@roblox.com
Co-authored-by: Vyacheslav Egorov vegorov@roblox.com
Full Changelog: 0.666...0.667