Foreword
This specification replaces ECMA-334:2023. Changes from the previous edition include the addition of the following:
- enhanced interpolated verbatim strings
- asynchronous streams
using
declarations andasync using
- generic method override with constraints
- unmanaged constructed types
- default member implementations in interfaces
- permit
stackalloc
in nested contexts notnull
constraint- null coalescing assignment
- nullable reference types
- ranges and indexes
- readonly instance members
- name shadowing in nested functions
- static local functions
- ?? Disposable ref structs
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ECMA C# draft specification