Update 6.4 branch to Node.js 20.x

.github/workflows/performance.yml

@@ -71,11 +71,13 @@ jobs:
   # - Run performance tests (current commit).
   # - Print performance tests results.
   # - Check out target commit (target branch or previous commit).
+  # - Switch Node.js versions if necessary.
   # - Install npm dependencies.
   # - Build WordPress.
   # - Run performance tests (previous/target commit).
   # - Print target performance tests results.
   # - Reset to original commit.
+  # - Switch Node.js versions if necessary.
   # - Install npm dependencies.
   # - Set the environment to the baseline version.
   # - Run baseline performance tests.
@@ -182,6 +184,12 @@ jobs:
           fi
           git reset --hard $TARGET_SHA
 
+      - name: Set up Node.js
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d # v3.8.1
+        with:
+          node-version-file: '.nvmrc'
+          cache: npm
+
       - name: Install npm dependencies
         run: npm ci
 
@@ -201,6 +209,12 @@ jobs:
       - name: Reset to original commit
         run: git reset --hard $GITHUB_SHA
 
+      - name: Set up Node.js
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d # v3.8.1
+        with:
+          node-version-file: '.nvmrc'
+          cache: npm
+
       - name: Install npm dependencies
         run: npm ci
 

.github/workflows/test-npm.yml

@@ -76,6 +76,7 @@ jobs:
         uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d # v3.8.1
         with:
           node-version-file: '.nvmrc'
+          check-latest: true
           cache: npm
 
       - name: Log debug information
@@ -144,6 +145,7 @@ jobs:
         uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d # v3.8.1
         with:
           node-version-file: '.nvmrc'
+          check-latest: true
           cache: npm
 
       - name: Log debug information

.nvmrc

@@ -1 +1 @@
-16
+20

package.json

@@ -7,8 +7,8 @@
 		"url": "https://develop.svn.wordpress.org/trunk"
 	},
 	"engines": {
-		"node": ">=16.19.1",
-		"npm": ">=8.19.3 <9"
+		"node": ">=20.10.0",
+		"npm": ">=10.2.3"
 	},
 	"author": "The WordPress Contributors",
 	"license": "GPL-2.0-or-later",
@@ -198,4 +198,4 @@
 		"sync-gutenberg-packages": "grunt sync-gutenberg-packages",
 		"postsync-gutenberg-packages": "grunt wp-packages:sync-stable-blocks && grunt build --dev && grunt build"
 	}
-}
+}