12.0.1

🐛 Bug fix

• Fix exponential compilation blowup with large unboxed variants and dict pattern matching. #8078
• Rewatch: warnings for unsupported/unknown rescript.json fields. #8031
• Fix missing ignore function in some Stdlib modules. #8060
• Fix signature matching for externals when abstract alias hides function arity. #8045
• Fix arity detection for arrows returning nested generics. #8064
• Fix error handling when rescript.json parsing fails and improve error message. #8067
• Fix invalid JSX being generated for empty fragments. #8077

💅 Polish

• Add missing deprecation and migration for Exn.Error. #8036