diff --git a/.github/actions/setup/action.yml b/.github/actions/setup/action.yml
index 4d7d3d26da..9e88746a37 100644
--- a/.github/actions/setup/action.yml
+++ b/.github/actions/setup/action.yml
@@ -33,7 +33,30 @@ runs:
           node_modules
           packages/ts/*/node_modules
         key: ${{ runner.os }}-node_modules-${{ hashFiles('package-lock.json') }}
-    - name: Install npm dependencies
-      if: ${{ steps.cache-node_modules.outputs.cache-hit != 'true' }}
+    - name: Get all changed package*.json files
+      id: changed-package-json-files
+      uses: tj-actions/changed-files@v45
+      with:
+        files: |
+          package.json
+          packages/ts/*/package.json
+
+    - name: List all changed json files
+      if: steps.changed-package-json-files.outputs.any_changed == 'true'
+      env:
+        ALL_CHANGED_FILES: ${{ steps.changed-package-json-files.outputs.all_changed_files }}
+      shell: bash
+      run: |
+        for file in ${ALL_CHANGED_FILES}; do
+          echo "$file was changed"
+        done
+
+    - name: Install npm dependencies when no changes on package json
+      if: ${{ steps.cache-node_modules.outputs.cache-hit != 'true' && steps.changed-package-json-files.outputs.any_changed != 'true' }}
       shell: bash
       run: npm ci
+
+    - name: Install npm dependencies when there are changes on package json
+      if: ${{ steps.changed-package-json-files.outputs.any_changed == 'true' }}
+      shell: bash
+      run: npm install
diff --git a/package.json b/package.json
index fd549b92f8..1ee127dc82 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,8 @@
     "@remcovaes/web-test-runner-vite-plugin": "^1.2.2",
     "@types/karma": "^6.3.9",
     "@types/node": "^22.10.2",
+    "@types/react": "^19.0.2",
+    "@types/react-dom": "^19.0.2",
     "@vaadin/react-components": "24.7.0-alpha4",
     "@vitejs/plugin-react": "^4.3.4",
     "@web/test-runner": "^0.19.0",
@@ -67,7 +69,7 @@
     "nx": "^20.2.2",
     "postcss": "^8.4.49",
     "prettier": "^3.4.2",
-    "react-dom": "^18.3.1",
+    "react-dom": "^19",
     "simple-git-hooks": "^2.11.1",
     "sync-request": "^6.1.0",
     "tsx": "^4.19.2",
diff --git a/packages/java/tests/gradle/single-module-tests/src/main/resources/vaadin-featureflags.properties b/packages/java/tests/gradle/single-module-tests/src/main/resources/vaadin-featureflags.properties
new file mode 100644
index 0000000000..80f7397d52
--- /dev/null
+++ b/packages/java/tests/gradle/single-module-tests/src/main/resources/vaadin-featureflags.properties
@@ -0,0 +1,2 @@
+# React 19 (default in Vaadin 25)
+com.vaadin.experimental.react19=true
diff --git a/packages/java/tests/gradle/single-module/src/main/resources/vaadin-featureflags.properties b/packages/java/tests/gradle/single-module/src/main/resources/vaadin-featureflags.properties
new file mode 100644
index 0000000000..80f7397d52
--- /dev/null
+++ b/packages/java/tests/gradle/single-module/src/main/resources/vaadin-featureflags.properties
@@ -0,0 +1,2 @@
+# React 19 (default in Vaadin 25)
+com.vaadin.experimental.react19=true
diff --git a/packages/java/tests/spring/react-grid-test/src/main/resources/vaadin-featureflags.properties b/packages/java/tests/spring/react-grid-test/src/main/resources/vaadin-featureflags.properties
new file mode 100644
index 0000000000..80f7397d52
--- /dev/null
+++ b/packages/java/tests/spring/react-grid-test/src/main/resources/vaadin-featureflags.properties
@@ -0,0 +1,2 @@
+# React 19 (default in Vaadin 25)
+com.vaadin.experimental.react19=true
diff --git a/packages/java/tests/spring/react-i18n/src/main/resources/vaadin-featureflags.properties b/packages/java/tests/spring/react-i18n/src/main/resources/vaadin-featureflags.properties
index d26e4c1cd8..1cdc976662 100644
--- a/packages/java/tests/spring/react-i18n/src/main/resources/vaadin-featureflags.properties
+++ b/packages/java/tests/spring/react-i18n/src/main/resources/vaadin-featureflags.properties
@@ -1,2 +1,4 @@
 # Enable Hilla I18n feature flag so that we can test it
 com.vaadin.experimental.hillaI18n=true
+# React 19 (default in Vaadin 25)
+com.vaadin.experimental.react19=true
diff --git a/packages/java/tests/spring/react-signals/src/main/resources/vaadin-featureflags.properties b/packages/java/tests/spring/react-signals/src/main/resources/vaadin-featureflags.properties
index 64ea97e958..730ab22978 100644
--- a/packages/java/tests/spring/react-signals/src/main/resources/vaadin-featureflags.properties
+++ b/packages/java/tests/spring/react-signals/src/main/resources/vaadin-featureflags.properties
@@ -1,2 +1,4 @@
 # Experimental feature flags for Vaadin
 com.vaadin.experimental.fullstackSignals=true
+# React 19 (default in Vaadin 25)
+com.vaadin.experimental.react19=true
diff --git a/packages/ts/file-router/package.json b/packages/ts/file-router/package.json
index 0beaa39b6d..a1ba2545ce 100644
--- a/packages/ts/file-router/package.json
+++ b/packages/ts/file-router/package.json
@@ -86,7 +86,7 @@
     "@vaadin/hilla-react-auth": "24.7.0-alpha5",
     "@vaadin/hilla-react-signals": "24.7.0-alpha5",
     "c8": "^10.1.3",
-    "react": "^18.2.0",
+    "react": "^19",
     "rollup": "^4.21.0",
     "typescript": "5.7.2"
   }
diff --git a/packages/ts/models/package.json b/packages/ts/models/package.json
index f10234b287..1549f1e600 100644
--- a/packages/ts/models/package.json
+++ b/packages/ts/models/package.json
@@ -61,8 +61,8 @@
     "@types/chai-like": "^1.1.3",
     "@types/mocha": "^10.0.10",
     "@types/node": "^20.17.10",
-    "@types/react": "^18.3.18",
-    "@types/react-dom": "^18",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
     "@types/sinon": "^10.0.20",
     "@types/sinon-chai": "^3.2.12",
     "@types/validator": "^13.12.2",
diff --git a/packages/ts/react-auth/package.json b/packages/ts/react-auth/package.json
index 0f10b60753..41041531d5 100644
--- a/packages/ts/react-auth/package.json
+++ b/packages/ts/react-auth/package.json
@@ -60,8 +60,8 @@
     "@types/chai": "^4.3.20",
     "@types/chai-dom": "^1.11.3",
     "@types/mocha": "^10.0.10",
-    "@types/react": "^18.3.18",
-    "@types/react-dom": "^18",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
     "@types/sinon": "^10.0.20",
     "@types/sinon-chai": "^3.2.12",
     "@types/validator": "^13.12.2",
diff --git a/packages/ts/react-crud/package.json b/packages/ts/react-crud/package.json
index 354a573b35..c5bfab7732 100644
--- a/packages/ts/react-crud/package.json
+++ b/packages/ts/react-crud/package.json
@@ -73,8 +73,8 @@
     "@types/chai-as-promised": "^7.1.8",
     "@types/chai-dom": "^1.11.3",
     "@types/mocha": "^10.0.10",
-    "@types/react": "^18.3.18",
-    "@types/react-dom": "^18",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
     "@types/sinon": "^10.0.20",
     "@types/sinon-chai": "^3.2.12",
     "@types/validator": "^13.12.2",
diff --git a/packages/ts/react-form/package.json b/packages/ts/react-form/package.json
index 06fa83555a..4157c35028 100644
--- a/packages/ts/react-form/package.json
+++ b/packages/ts/react-form/package.json
@@ -60,8 +60,8 @@
     "@types/chai-as-promised": "^7.1.8",
     "@types/chai-dom": "^1.11.3",
     "@types/mocha": "^10.0.10",
-    "@types/react": "^18.3.18",
-    "@types/react-dom": "^18",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
     "@types/sinon": "^10.0.20",
     "@types/sinon-chai": "^3.2.12",
     "@types/validator": "^13.12.2",
diff --git a/packages/ts/react-i18n/package.json b/packages/ts/react-i18n/package.json
index a65a835905..7e3008067c 100644
--- a/packages/ts/react-i18n/package.json
+++ b/packages/ts/react-i18n/package.json
@@ -62,8 +62,8 @@
     "@types/chai-as-promised": "^7.1.8",
     "@types/chai-dom": "^1.11.3",
     "@types/mocha": "^10.0.10",
-    "@types/react": "^18.3.18",
-    "@types/react-dom": "^18",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
     "@types/sinon": "^10.0.20",
     "@types/sinon-chai": "^3.2.12",
     "@types/validator": "^13.12.2",
diff --git a/packages/ts/react-signals/package.json b/packages/ts/react-signals/package.json
index 12950b0f78..f6d6fb6bb0 100644
--- a/packages/ts/react-signals/package.json
+++ b/packages/ts/react-signals/package.json
@@ -62,8 +62,8 @@
     "@types/chai-as-promised": "^7.1.8",
     "@types/chai-dom": "^1.11.3",
     "@types/mocha": "^10.0.10",
-    "@types/react": "^18.3.18",
-    "@types/react-dom": "^18",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
     "@types/sinon": "^10.0.20",
     "@types/sinon-chai": "^3.2.12",
     "@types/validator": "^13.12.2",
diff --git a/pom.xml b/pom.xml
index b7fd888ef4..99e42d01ea 100644
--- a/pom.xml
+++ b/pom.xml
@@ -75,7 +75,7 @@
     <jackson.version>2.18.2</jackson.version>
     <junit.version>5.10.1</junit.version>
     <mockito.version>4.5.0</mockito.version>
-    <flow.version>24.7-SNAPSHOT</flow.version>
+    <flow.version>24.7.react19-SNAPSHOT</flow.version>
     <slf4j.version>2.0.9</slf4j.version>
     <spring.boot.version>3.4.1</spring.boot.version>
     <testbench.version>9.3.7</testbench.version>