0.741

Another week, another release - happy October! 🎃

What's Changed

• Skip subtyping reasoning that is never read by @Pyseph in #2992
• Skip two type traversals whose results are unused by @Pyseph in #3006
• Fix GC allocation rate underflow when the heap shrinks between cycles by @gemtool in #2996

New Contributors

• @Pyseph made their first contribution in #2992

Analysis

• Fix a bug that was preventing jump-to-definition functionality from
  working on function return annotations.
• Resolve a crash that could occur when using type assertions within a
  typeof call inside a type alias.

Compiler / NCG

• Add new tracking logic that allows local registers to be reused after
  their last use.
• NCG: Guard against register counter overflow.
• NCG: Fix a bug in the buffer range checking logic.

Bytecode graph

• Preserve phi registers in loops during inlining.
• Fix bugs relating to how the bytecode graph models loop instructions'
  interactions with values.
• Add a representation of feedback slots to the bytecode graph.

Runtime / C API

• Rename lua_setbuffercage to lua_setmemorycage.

Full Changelog: 0.740...0.741

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Co-authored-by: Andy Friesen afriesen@roblox.com
Co-authored-by: Ariel Weiss arielweiss@roblox.com
Co-authored-by: Hunter Goldstein hgoldstein@roblox.com
Co-authored-by: Sora Kanosue skanosue@roblox.com
Co-authored-by: Thomas Schollenberger tschollenberger@roblox.com
Co-authored-by: Vyacheslav Egorov vegorov@roblox.com