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    1. 14


      • YJIT: New experimental in-process JIT compiler
        • disabled by default (needs --yjit cli option), limited to Unix-like x86-64 platforms for now
      • debug gem: A new debugger
      • error_highlight: Fine-grained error location in backtrace
      • IRB Autocomplete and Document Display
      • Values in Hash literals and keyword arguments can be omitted
      • Pin operator in pattern matching now takes an expression