feat: nitro modules 37 upgrade

README.md

@@ -19,7 +19,7 @@ npm install @bernagl/react-native-date react-native-nitro-modules
 cd ios && pod install
 ```
 
-**Requirements:** React Native 0.76+ (New Architecture) • Nitro Modules 0.35.x • iOS 13.0+ • Android API 24+
+**Requirements:** React Native 0.76+ (New Architecture) • Nitro Modules 0.37.x • iOS 13.0+ • Android API 24+
 
 ## Is this library for you?
 

docs/api-reference.md

@@ -6,10 +6,10 @@ All functions accept flexible date inputs and return timestamps (milliseconds si
 type DateInput = number | string | Date;
 ```
 
-::: warning v3.0 Native Requirement
-v3.0 requires `react-native-nitro-modules >=0.35.0 <0.36.0`. Reinstall pods and rebuild native apps after upgrading.
+::: warning v4.0 Native Requirement
+v4.0 requires `react-native-nitro-modules >=0.37.0 <0.38.0`. Reinstall pods and rebuild native apps after upgrading.
 
-See [Release Notes](https://github.com/bbernag/react-native-date/blob/main/packages/native-date/RELEASE_NOTES_v3.0.0.md) for migration steps.
+See [Release Notes](https://github.com/bbernag/react-native-date/blob/main/packages/native-date/RELEASE_NOTES_v4.0.0.md) for migration steps.
 :::
 
 ::: warning v2.0 Breaking Changes

docs/index.md

@@ -173,7 +173,7 @@ import { nativeDate } from '@bernagl/react-native-date/chain';
 | iOS | 13.0+ |
 | Android | API 24+ (Android 7.0) |
 | React Native | 0.76+ (New Architecture) |
-| Nitro Modules | 0.35.x |
+| Nitro Modules | 0.37.x |
 
 ---
 

packages/example/package.json

@@ -18,7 +18,7 @@
     "luxon": "^3.5.0",
     "react": "19.1.0",
     "react-native": "0.81.1",
-    "react-native-nitro-modules": "0.35.7"
+    "react-native-nitro-modules": "0.37.1"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",

packages/expo-example/package.json

@@ -19,7 +19,7 @@
     "expo-status-bar": "~3.0.9",
     "react": "19.1.0",
     "react-native": "0.81.5",
-    "react-native-nitro-modules": "0.35.7"
+    "react-native-nitro-modules": "0.37.1"
   },
   "devDependencies": {
     "@types/react": "~19.1.0",

packages/native-date/CHANGELOG.md

@@ -7,6 +7,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [4.0.0] - 2026-10-01
+
+### Changed
+
+- Upgrade Nitro Modules and Nitrogen generation to 0.37.1.
+- Require `react-native-nitro-modules >=0.37.0 <0.38.0` for native integration.
+- Validate the existing native spec against Nitrogen 0.37.1: the generated code is identical to Nitrogen 0.35.7.
+
+### Migration
+
+- Upgrade consuming apps to a Nitro Modules 0.37.x release.
+- Reinstall iOS pods and rebuild native apps after upgrading.
+- Keep the JavaScript date API unchanged from v3.x.
+
 ## [3.0.0] - 2026-05-26
 
 ### Changed
@@ -58,6 +72,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Minimal bridge overhead with Nitro Modules
 - Benchmark results show 2-22x improvement over date-fns/dayjs for various operations
 
-[Unreleased]: https://github.com/bbernag/react-native-date/compare/v3.0.0...HEAD
+[Unreleased]: https://github.com/bbernag/react-native-date/compare/v4.0.0...HEAD
+[4.0.0]: https://github.com/bbernag/react-native-date/compare/v3.0.0...v4.0.0
 [3.0.0]: https://github.com/bbernag/react-native-date/compare/v2.0.0...v3.0.0
 [0.1.0]: https://github.com/bbernag/react-native-date/releases/tag/v0.1.0

packages/native-date/README.md

@@ -2,7 +2,7 @@
 
 High-performance native date library for React Native, powered by C++ and [Nitro Modules](https://nitro.margelo.com/).
 
-> **v3.0 Native Requirement:** This release requires `react-native-nitro-modules >=0.35.0 <0.36.0`. See [RELEASE_NOTES_v3.0.0.md](./RELEASE_NOTES_v3.0.0.md) for migration steps.
+> **v4.0 Native Requirement:** This release requires `react-native-nitro-modules >=0.37.0 <0.38.0`. See [RELEASE_NOTES_v4.0.0.md](./RELEASE_NOTES_v4.0.0.md) for migration steps.
 
 > **v2.0 Breaking Changes:** `parse()` and getter functions now use local time for date-only strings (previously UTC). See [RELEASE_NOTES_v2.0.0.md](./RELEASE_NOTES_v2.0.0.md) for migration guide.
 
@@ -20,7 +20,7 @@ High-performance native date library for React Native, powered by C++ and [Nitro
 ## Requirements
 
 - React Native 0.76+ (New Architecture required)
-- Nitro Modules 0.35.x
+- Nitro Modules 0.37.x
 - iOS 13.0+
 - Android SDK 24+
 

packages/native-date/RELEASE_NOTES_v4.0.0.md

@@ -0,0 +1,66 @@
+# Release Notes v4.0.0
+
+## Highlights
+
+This release upgrades the native integration to Nitro Modules 0.37 while keeping the JavaScript date API unchanged from v3.x.
+
+The package now builds and publishes with:
+
+- `react-native-nitro-modules` 0.37.1 for development and example validation
+- `nitrogen` 0.37.1 for generated native specs
+- `react-native-nitro-modules >=0.37.0 <0.38.0` as the public peer dependency
+
+## Breaking Changes
+
+### Nitro Modules 0.37.x Is Required
+
+Consumers must install a Nitro Modules 0.37 release. Nitro Modules 0.35.x and 0.36.x are no longer compatible with this package version.
+
+```bash
+npm install @bernagl/react-native-date@4.0.0 react-native-nitro-modules@0.37.1
+# or
+yarn add @bernagl/react-native-date@4.0.0 react-native-nitro-modules@0.37.1
+```
+
+## Migration Guide
+
+1. Upgrade the packages:
+
+   ```bash
+   npm install @bernagl/react-native-date@4.0.0 react-native-nitro-modules@0.37.1
+   # or
+   yarn add @bernagl/react-native-date@4.0.0 react-native-nitro-modules@0.37.1
+   ```
+
+2. Reinstall iOS pods:
+
+   ```bash
+   cd ios
+   pod install
+   ```
+
+3. Rebuild the native app:
+
+   ```bash
+   npx react-native run-ios
+   npx react-native run-android
+   ```
+
+4. For Expo Dev Client apps, prebuild before running:
+
+   ```bash
+   npx expo prebuild --clean
+   npx expo run:ios
+   npx expo run:android
+   ```
+
+Expo Go is not supported because this package includes native code.
+
+## Compatibility Notes
+
+- No JavaScript date API changes were introduced in v4.0.0.
+- Existing v3.x parsing, formatting, timezone, locale, chain, and async APIs remain unchanged.
+- The version bump is major because the native Nitro peer dependency changed.
+- The peer range intentionally stops before Nitro Modules 0.38 until that line is validated.
+- Nitrogen 0.37.1 generates byte-identical native code for the current spec as Nitrogen 0.35.7.
+- Nitro Modules 0.36 and 0.37 change only the Nitro View pipeline and Kotlin/JNI internals; `NativeDate` is a plain C++ HybridObject and needs no source changes.

packages/native-date/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@bernagl/react-native-date",
-  "version": "3.0.0",
+  "version": "4.0.0",
   "description": "The fastest date library for React Native. Powered by C++ and Nitro Modules.",
   "sideEffects": false,
   "main": "./lib/module/index.js",
@@ -114,20 +114,20 @@
     "eslint-plugin-react-native": "^5.0.0",
     "jest": "^30.2.0",
     "lefthook": "^2.0.3",
-    "nitrogen": "0.35.7",
+    "nitrogen": "0.37.1",
     "prettier": "^2.8.8",
     "react": "19.1.0",
     "react-native": "0.81.1",
     "react-native-builder-bob": "^0.40.16",
-    "react-native-nitro-modules": "0.35.7",
+    "react-native-nitro-modules": "0.37.1",
     "ts-jest": "^29.4.6",
     "turbo": "^2.5.6",
     "typescript": "^5.9.2"
   },
   "peerDependencies": {
     "react": "*",
     "react-native": "*",
-    "react-native-nitro-modules": ">=0.35.0 <0.36.0"
+    "react-native-nitro-modules": ">=0.37.0 <0.38.0"
   },
   "react-native-builder-bob": {
     "source": "src",

yarn.lock

@@ -1811,19 +1811,19 @@ __metadata:
     eslint-plugin-react-native: "npm:^5.0.0"
     jest: "npm:^30.2.0"
     lefthook: "npm:^2.0.3"
-    nitrogen: "npm:0.35.7"
+    nitrogen: "npm:0.37.1"
     prettier: "npm:^2.8.8"
     react: "npm:19.1.0"
     react-native: "npm:0.81.1"
     react-native-builder-bob: "npm:^0.40.16"
-    react-native-nitro-modules: "npm:0.35.7"
+    react-native-nitro-modules: "npm:0.37.1"
     ts-jest: "npm:^29.4.6"
     turbo: "npm:^2.5.6"
     typescript: "npm:^5.9.2"
   peerDependencies:
     react: "*"
     react-native: "*"
-    react-native-nitro-modules: ">=0.35.0 <0.36.0"
+    react-native-nitro-modules: ">=0.37.0 <0.38.0"
   languageName: unknown
   linkType: soft
 
@@ -4023,7 +4023,7 @@ __metadata:
     expo-status-bar: "npm:~3.0.9"
     react: "npm:19.1.0"
     react-native: "npm:0.81.5"
-    react-native-nitro-modules: "npm:0.35.7"
+    react-native-nitro-modules: "npm:0.37.1"
     typescript: "npm:~5.9.2"
   languageName: unknown
   linkType: soft
@@ -4053,7 +4053,7 @@ __metadata:
     react-native: "npm:0.81.1"
     react-native-builder-bob: "npm:^0.40.16"
     react-native-monorepo-config: "npm:^0.1.9"
-    react-native-nitro-modules: "npm:0.35.7"
+    react-native-nitro-modules: "npm:0.37.1"
   languageName: unknown
   linkType: soft
 
@@ -11516,18 +11516,18 @@ __metadata:
   languageName: node
   linkType: hard
 
-"nitrogen@npm:0.35.7":
-  version: 0.35.7
-  resolution: "nitrogen@npm:0.35.7"
+"nitrogen@npm:0.37.1":
+  version: 0.37.1
+  resolution: "nitrogen@npm:0.37.1"
   dependencies:
     chalk: "npm:^5.3.0"
-    react-native-nitro-modules: "npm:^0.35.7"
+    react-native-nitro-modules: "npm:^0.37.1"
     ts-morph: "npm:^28.0.0"
     yargs: "npm:^18.0.0"
-    zod: "npm:^4.0.5"
+    zod: "npm:^4.4.3"
   bin:
     nitrogen: lib/index.js
-  checksum: 10c0/1dd8fe72c5d90991038571fc3009489802f0b8d2c760db40cc83b119576e122c5e22a22b0391f0e4cb6fdb178fc389f143c9b16b67be80a14e4617832a6f7fab
+  checksum: 10c0/2f0aef19427a58dde9c3e9da9151381c21e0479c0e7fceb55131039201113f3eacd8c5cc01e5b408d4ba86dba8d9a7210d7189144cc35fdde83db950f34c29bd
   languageName: node
   linkType: hard
 
@@ -12469,13 +12469,13 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react-native-nitro-modules@npm:0.35.7, react-native-nitro-modules@npm:^0.35.7":
-  version: 0.35.7
-  resolution: "react-native-nitro-modules@npm:0.35.7"
+"react-native-nitro-modules@npm:0.37.1, react-native-nitro-modules@npm:^0.37.1":
+  version: 0.37.1
+  resolution: "react-native-nitro-modules@npm:0.37.1"
   peerDependencies:
     react: "*"
     react-native: "*"
-  checksum: 10c0/f0c9167655032952bfdadd6802eade60796df2021e29a451ec205843dd6e95c6cb274d77c77534703a5d5d55e45c6f7ca1900a94813de3e0bdb0f3aa654cf3fc
+  checksum: 10c0/5178f2ee891cb746b084fdf382b6020e366d8e4a81922a3f1d60a453d34fca6ebb1b00c4c28785c36385bc182ab76a30cba70441c39abbc25d3ad54db612e46e
   languageName: node
   linkType: hard
 
@@ -15121,13 +15121,20 @@ __metadata:
   languageName: node
   linkType: hard
 
-"zod@npm:^3.25.0 || ^4.0.0, zod@npm:^4.0.5":
+"zod@npm:^3.25.0 || ^4.0.0":
   version: 4.3.5
   resolution: "zod@npm:4.3.5"
   checksum: 10c0/5a2db7e59177a3d7e202543f5136cb87b97b047b77c8a3d824098d3fa8b80d3aa40a0a5f296965c3b82dfdccdd05dbbfacce91347f16a39c675680fd7b1ab109
   languageName: node
   linkType: hard
 
+"zod@npm:^4.4.3":
+  version: 4.6.5
+  resolution: "zod@npm:4.6.5"
+  checksum: 10c0/32eb6c5e98becbe045675b2141c3611451c16ba567f9779231d79af41c4d651ca1c22f154aef7e6c6e77b929f23e43f1154ca05b82e119e922353725d6776af5
+  languageName: node
+  linkType: hard
+
 "zwitch@npm:^2.0.4":
   version: 2.0.4
   resolution: "zwitch@npm:2.0.4"