0.615

What's changed?

• Luau allocation scheme was changed to handle allocations in 513-1024 byte range internally without falling back to global allocator
  • coroutine/thread creation no longer requires any global allocations, making it up to 15% faster (vs libc malloc)
  • table construction for 17-32 keys or 33-64 array elements is up to 30% faster (vs libc malloc)
• luau-compile: Fix usage of vector-ctor without vector-lib by @zeux in #1172

New Type Solver

• Cyclic unary negation type families are reduced to number when possible
• Class types are skipped when searching for free types in unifier to improve performance
• Fixed issues with table type inference when metatables are present
• Improved inference of iteration loop types
• Fixed an issue with bidirectional inference of method calls
• Type simplification will now preserve error suppression markers

Native Code Generation

• Fixed TAG_VECTOR skip optimization to not break instruction use counts (broken optimization wasn't included in 614)
• Fixed missing side-effect when optimizing generic loop preparation instruction
• Optimized vector ops for X64 when the source is computed by @zeux in #1174

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Full Changelog: 0.614...0.615