v4.0.0

4.0.0 (2026-10-16)

⚠ BREAKING CHANGES

• csharp: nullable literal aliases now use their declared type name (for example Mood rather than the property-derived mood). Update direct references to old generated symbols when regenerating 3.0.0 output. Shared Rust enums may move between model source modules; use the unchanged generated module re-exports rather than an owner-file-specific import.

Features

• emitter: load absent required nullable keys as null with = null (3ab2d65)

Bug Fixes

• csharp: guard nullable string record values before conversion (3ab2d65)
• emitter: declare shared string enums once in Go, Swift, and Rust (3ab2d65)
• emitter: preserve enum alias names through nullable unions (3ab2d65)
• swift: materialize inherited nullable defaults in unknown discriminator saves (3ab2d65)