Update foreword.md (#1547)

Author: RexJaeschke

standard/foreword.md

@@ -1,20 +1,24 @@
 # Foreword
 
-This specification replaces ECMA-334:2023. Changes from the previous edition include the addition of the following features:
+This specification replaces ECMA-334:2026. Changes from the previous edition include the addition of the following features:
 
-- enhanced interpolated verbatim strings
-- asynchronous streams
-- `using` declarations and `async 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
-- positional, property, and discard patterns
-- ranges and indexes
-- readonly instance members
-- name shadowing in nested functions
-- static local functions
-- Disposable ref structs
+- 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