0.744

Boo! 🦇 🎃

In the lead up to next weeks spooky season, we've fixed a few bugs that have been lurking deep in the bowels of the runtime.

Runtime Changes

• Fix a bug in DSE(Dead Store Elimination) caused by not invalidating tags when the corresponding load was overwritten
• Fix an Arm64 crash caused by functions w/ more than 256 constants overflowing the arm64 immediate size.
• Support Intel Mac libunwind (we just assume you're using libc++)
• INVOKE_FASTPCALL should be registered as being able to invalidate SafeEnv
• Fix a crash found by our fuzzer due to slot allocations.
• Handful of correctness fixes to Luau integer and bit32 operations - this affects bit32.lrotate, integer.lrotate, integer.extract/replace.
• Fix a bug caused by silently casting a uint8_t to an int8_t in the compiler.
• Fixes a bug in FORGLOOP register reservation.

Type System Changes

• Width subtyping should not inject nil as a type for a stand-in property. Fixes #2625, #2644.
• Fix type pack handling in call tail argument position in nonstrict

Prototype/Experimental projects

• Added runtime support for private class fields

New Contributors

• @protheeuz made their first contribution in #2365

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Full Changelog: 0.743...0.744