feat: BREAKING_CHANGE - upgrade minimum required Node version from Node 20 to 22

.github/workflows/test.yml

@@ -1,4 +1,4 @@
 name: Run tests
 
 on:
   push:
@@ -7,19 +7,19 @@
     branches: [ 'main' ]
 
 jobs:
   test:
 
     runs-on: ubuntu-latest
 
     strategy:
       matrix:
         # TODO(b/419883265): remove commonjs bundles when dropping node 20 support.
-        node-version: [20.x, 22.x, 24.x]
+        node-version: [20.x, 22.x, 24.x, 26.x]
 
     steps:
     - uses: actions/checkout@v4
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
         cache: 'npm'
@@ -32,8 +32,8 @@
         npm install
         npm run build
 
   api-consistency:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
     - run: scripts/validate_api_consistency.sh

README.md

@@ -45,7 +45,7 @@ We recommend using our Code Generation instructions [`codegen_instructions.md`](
 
 ## Prerequisites
 
-1. Node.js version 20 or later
+1. Node.js version 22 or later
 
 ### The following are required for Gemini Enterprise Agent Platform users (excluding Vertex AI Studio)
 1.  [Select](https://console.cloud.google.com/project) or [create](https://cloud.google.com/resource-manager/docs/creating-managing-projects#creating_a_project) a Google Cloud project.

package.json

@@ -17,12 +17,10 @@
       "node": {
         "types": "./dist/node/node.d.ts",
         "import": "./dist/node/index.mjs",
-        "require": "./dist/node/index.cjs",
         "default": "./dist/node/index.mjs"
       },
       "types": "./dist/genai.d.ts",
       "import": "./dist/index.mjs",
-      "require": "./dist/index.cjs",
       "default": "./dist/index.mjs"
     },
     "./web": {
@@ -39,24 +37,20 @@
       "node": {
         "types": "./dist/tokenizer/node.d.ts",
         "import": "./dist/tokenizer/node.mjs",
-        "require": "./dist/tokenizer/node.cjs",
         "default": "./dist/tokenizer/node.mjs"
       },
       "types": "./dist/tokenizer/node.d.ts",
       "import": "./dist/tokenizer/node.mjs",
-      "require": "./dist/tokenizer/node.cjs",
       "default": "./dist/tokenizer/node.mjs"
     },
     "./tokenizer/node": {
       "types": "./dist/tokenizer/node.d.ts",
       "import": "./dist/tokenizer/node.mjs",
-      "require": "./dist/tokenizer/node.cjs",
       "default": "./dist/tokenizer/node.mjs"
     },
     "./vertex_internal": {
       "types": "./dist/vertex_internal/index.d.ts",
-      "import": "./dist/vertex_internal/index.js",
-      "require": "./dist/vertex_internal/index.cjs"
+      "import": "./dist/vertex_internal/index.js"
     }
   },
   "scripts": {
@@ -85,32 +79,27 @@
     "generate-proto": "pbjs -t static-module -w es6 -o src/cross/sentencepiece/sentencepiece_model.pb.js src/cross/sentencepiece/sentencepiece_model.proto && pbts -o src/cross/sentencepiece/sentencepiece_model.pb.d.ts src/cross/sentencepiece/sentencepiece_model.pb.js && sed -i.bak 's/import \\* as \\$protobuf from \"protobufjs\\/minimal\"/import \\$protobuf from \"protobufjs\\/minimal.js\"/' src/cross/sentencepiece/sentencepiece_model.pb.js && rm src/cross/sentencepiece/sentencepiece_model.pb.js.bak"
   },
   "engines": {
-    "node": ">=20.0.0"
+    "node": ">=22.0.0"
   },
   "overrides": {
     "tmp": "^0.2.4"
   },
   "files": [
     "dist/genai.d.ts",
     "dist/index.mjs",
-    "dist/index.cjs",
     "dist/index.mjs.map",
     "dist/node/index.mjs",
-    "dist/node/index.cjs",
     "dist/node/index.mjs.map",
     "dist/node/node.d.ts",
     "dist/web/index.mjs",
     "dist/web/index.mjs.map",
     "dist/web/web.d.ts",
     "dist/tokenizer/node.mjs",
-    "dist/tokenizer/node.cjs",
     "dist/tokenizer/node.mjs.map",
     "dist/tokenizer/node.d.ts",
     "dist/vertex_internal/index.js",
-    "dist/vertex_internal/index.cjs",
     "dist/vertex_internal/index.d.ts",
     "dist/vertex_internal/index.js.map",
-    "dist/vertex_internal/index.cjs.map",
     "node/package.json",
     "web/package.json"
   ],
@@ -121,7 +110,7 @@
     "@modelcontextprotocol/sdk": "^1.25.2",
     "@rollup/plugin-json": "^6.1.0",
     "@types/jasmine": "^5.1.2",
-    "@types/node": "^20.9.0",
+    "@types/node": "^22.0.3",
     "@types/node-fetch": "^2.6.13",
     "@types/unist": "^3.0.3",
     "@types/ws": "^8.5.14",

rollup.config.mjs

@@ -50,18 +50,6 @@ export default [
     external: externalDeps,
   },
 
-  // Cross CJS module (dist/index.cjs)
-  {
-    input: 'src/index.ts',
-    output: {
-      file: pkg.exports['.']['require'],
-      format: 'cjs',
-      sourcemap: true,
-    },
-    plugins: rollupPlugins,
-    external: externalDeps,
-  },
-
   // The `node/` ES module (dist/node/index.mjs)
   {
     input: 'src/node/index.ts',
@@ -74,18 +62,6 @@ export default [
     external: externalDeps,
   },
 
-  // The `node/` CJS module (dist/node/index.cjs)
-  {
-    input: 'src/node/index.ts',
-    output: {
-      file: pkg.exports['.']['node']['require'],
-      format: 'cjs',
-      sourcemap: true,
-    },
-    plugins: rollupPlugins,
-    external: externalDeps,
-  },
-
   // The `web/` module, ES module only (dist/web/index.js)
   {
     input: 'src/web/index.ts',
@@ -110,18 +86,6 @@ export default [
     external: externalDeps,
   },
 
-  // The `tokenizer/node` CJS module (dist/tokenizer/node.cjs)
-  {
-    input: 'src/tokenizer/node.ts',
-    output: {
-      file: 'dist/tokenizer/node.cjs',
-      format: 'cjs',
-      sourcemap: true,
-    },
-    plugins: rollupPlugins,
-    external: externalDeps,
-  },
-
   // Internal module, only for use by Vertex SDK
   {
     input: 'src/vertex_internal/index.ts',
@@ -133,14 +97,4 @@ export default [
     plugins: rollupPlugins,
     external: externalDeps,
   },
-  {
-    input: 'src/vertex_internal/index.ts',
-    output: {
-      file: 'dist/vertex_internal/index.cjs',
-      format: 'cjs',
-      sourcemap: true,
-    },
-    plugins: rollupPlugins,
-    external: externalDeps,
-  },
 ];