Update to ReScript 12

.github/workflows/nodejs.yml

@@ -5,25 +5,24 @@ name: Node.js CI
 
 on:
   push:
-    branches: [ master ]
+    branches: [master]
   pull_request:
-    branches: [ master ]
+    branches: [master]
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     strategy:
       matrix:
-        node-version: [16.x]
+        node-version: [24.x]
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v3
-      with:
-        node-version: ${{ matrix.node-version }}
-    - run: npm install
-    - run: npm run build
-    - run: npm run test
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v6
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install
+      - run: npm run build
+      - run: npm run test

.gitignore

@@ -19,3 +19,5 @@ src/legacy/*.bs.js
 
 # React
 !/src/react/*.js
+# ReScript
+lib/

CHANGELOG.md

@@ -10,6 +10,12 @@
 > - :house: [Internal]
 > - :nail_care: [Polish]
 
+## 0.15.0-alpha.1
+
+#### :boom: [Breaking Change]
+
+- Upgrade to ReScript 12.0.0
+
 ## 0.14.0
 
 #### :nail_care: Polish
@@ -149,7 +155,6 @@ No changes compared to rc.3.
 - Removed the deprecation attribute from apis of the new jsx transform (introduced in React v17).
 
 - New version requirements:
-
   - ReScript compiler V10.1+
   - ReactJS v18.2.0+
 
@@ -175,14 +180,12 @@ For history on previous evolution of the code, check out the original [reason-re
 - **IMPORTANT:** Currently, old third-party packages that are still dependent on `reason-react` will not mix with other `@rescript/react` based code due to a build system problem. Which means that every third-party dependency needs to be upgraded to `@rescript/react` first to make it compatible. See [this forum discussion](https://forum.rescript-lang.org/t/discussion-reason-react-rescript-react-migration-path/1086) for more details.
 
 - Removed legacy modules ("record api"):
-
   - `ReasonReactCompat`
   - `ReactDOMServerRe`
   - `ReactEventRe`
   - `ReasonReactOptimizedCreateClass`
 
 - Renamed existing modules:
-
   - `ReasonReactErrorBoundary` -> `RescriptReactErrorBoundary`
   - `ReasonReactRouter` -> `RescriptReactRouter`
   - (Note: Usually the two only valid styles would be `ReScript` or `rescript`, the latter being the version for technical writing. We are using `Rescript` here, since it is essentially the capitalized version of `rescript`)

package.json

@@ -28,12 +28,15 @@
   },
   "homepage": "https://rescript-lang.org/docs/react/latest/introduction",
   "devDependencies": {
-    "react": "^19.1.0",
-    "react-dom": "^19.1.0",
-    "rescript": "^11.0.0"
+    "react": "^19.2.3",
+    "react-dom": "^19.2.3",
+    "rescript": "^12.1.0"
   },
   "peerDependencies": {
     "react": ">=19.0.0",
     "react-dom": ">=19.0.0"
+  },
+  "dependencies": {
+    "@rescript/runtime": ">=12.0.0"
   }
 }

rescript.json

@@ -4,9 +4,7 @@
     "version": 4,
     "mode": "classic"
   },
-  "sources": [{ "dir": "src", "subdirs": true }],
-  "package-specs": [{ "module": "commonjs", "in-source": true }],
-  "suffix": ".bs.js",
-  "bs-dev-dependencies": [],
-  "bsc-flags": []
+  "sources": [{ "dir": "src" }],
+  "package-specs": [{ "module": "esmodule", "in-source": true }],
+  "suffix": ".res.js"
 }