1.4.1

Standard Library

Collection

• Avoid compile-time error on empty NamedTuples. (#12007, thanks @I3oris)

Files

• Add missing fun def for __xstat (#11985, thanks @straight-shoota)

Runtime

• Add pthread link annotations in lib bindings (#12013, thanks @straight-shoota)
• Fix GC typedefs on Windows (#11963, thanks @HertzDevil)

Compiler

Semantic

• Compiler: remove duplicate instance vars once we know them all (#11995, thanks @asterite)