Foreword

This specification replaces ECMA-334:2026. Changes from the previous edition include the addition of the following features:

• Init accessors
• Top-level statements
• Native-sized integers
• Records
• Function pointers
• Pattern matching enhancements
• Static anonymous functions
• Target-typed conditional expressions
• Covariant return types
• Extension GetEnumerator support for foreach loops
• Lambda discard parameters
• Attributes and extern on local functions
• Module initializers
• New features for partial methods
• Target-typed new expressions
• Unconstrained type parameter annotations
• Variance safety for static interface members
• Nullable reference types
• Nullable constructor analysis
• Nullable parameter default value analysis