diff --git a/.github/release-please-manifest.json b/.github/release-please-manifest.json
index c4db367..1055c0d 100644
--- a/.github/release-please-manifest.json
+++ b/.github/release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  "packages/typra-emitter": "3.0.0"
+  "packages/typra-emitter": "4.0.0"
 }
diff --git a/packages/typra-emitter/CHANGELOG.md b/packages/typra-emitter/CHANGELOG.md
index ea2e49e..1729ef8 100644
--- a/packages/typra-emitter/CHANGELOG.md
+++ b/packages/typra-emitter/CHANGELOG.md
@@ -6,6 +6,25 @@ Versions `0.4.3` through `0.4.18` were published from the unmerged branch of PR
 rather than from `main`, so `main` declared `0.4.2` while npm `latest` was `0.4.18`.
 PR #36 has since been merged and `main` is once again the source of truth for releases.
 
+## [4.0.0](https://github.com/sethjuarez/typra/compare/v3.0.0...v4.0.0) (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](https://github.com/sethjuarez/typra/commit/3ab2d6593c3f68f1e2975e58fcdfe84173284495))
+
+
+### Bug Fixes
+
+* **csharp:** guard nullable string record values before conversion ([3ab2d65](https://github.com/sethjuarez/typra/commit/3ab2d6593c3f68f1e2975e58fcdfe84173284495))
+* **emitter:** declare shared string enums once in Go, Swift, and Rust ([3ab2d65](https://github.com/sethjuarez/typra/commit/3ab2d6593c3f68f1e2975e58fcdfe84173284495))
+* **emitter:** preserve enum alias names through nullable unions ([3ab2d65](https://github.com/sethjuarez/typra/commit/3ab2d6593c3f68f1e2975e58fcdfe84173284495))
+* **swift:** materialize inherited nullable defaults in unknown discriminator saves ([3ab2d65](https://github.com/sethjuarez/typra/commit/3ab2d6593c3f68f1e2975e58fcdfe84173284495))
+
 ## [3.0.0](https://github.com/sethjuarez/typra/compare/v2.1.8...v3.0.0) (2026-10-15)
 
 
diff --git a/packages/typra-emitter/package.json b/packages/typra-emitter/package.json
index 245ef26..2f5ea30 100644
--- a/packages/typra-emitter/package.json
+++ b/packages/typra-emitter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@typra/emitter",
-  "version": "3.0.0",
+  "version": "4.0.0",
   "description": "Generic TypeSpec emitter for generating multi-runtime model surfaces",
   "license": "MIT",
   "repository": {