diff --git a/public/fonts/Source-Code-Pro-Bold.woff2 b/public/fonts/Source-Code-Pro-Bold.woff2
new file mode 100644
index 000000000..220bd5d96
Binary files /dev/null and b/public/fonts/Source-Code-Pro-Bold.woff2 differ
diff --git a/public/fonts/Source-Code-Pro-Regular.woff2 b/public/fonts/Source-Code-Pro-Regular.woff2
index 655cd9e81..fd665c465 100644
Binary files a/public/fonts/Source-Code-Pro-Regular.woff2 and b/public/fonts/Source-Code-Pro-Regular.woff2 differ
diff --git a/public/images/blog/react-labs-april-2025/flip.gif b/public/images/blog/react-labs-april-2025/flip.gif
deleted file mode 100644
index a7363ebf6..000000000
Binary files a/public/images/blog/react-labs-april-2025/flip.gif and /dev/null differ
diff --git a/src/components/Layout/HomeContent.js b/src/components/Layout/HomeContent.js
index 600e37c74..af4183017 100644
--- a/src/components/Layout/HomeContent.js
+++ b/src/components/Layout/HomeContent.js
@@ -875,7 +875,8 @@ function ExampleLayout({
           </div>
           <div
             ref={contentRef}
-            className="relative mt-0 lg:-my-20 w-full p-2.5 xs:p-5 lg:p-10 flex grow justify-center">
+            className="relative mt-0 lg:-my-20 w-full p-2.5 xs:p-5 lg:p-10 flex grow justify-center"
+            dir="ltr">
             {right}
             <div
               className={cn(
diff --git a/src/components/MDX/Sandpack/template.ts b/src/components/MDX/Sandpack/template.ts
index 7fbd537e7..dd6fd12bd 100644
--- a/src/components/MDX/Sandpack/template.ts
+++ b/src/components/MDX/Sandpack/template.ts
@@ -1,7 +1,7 @@
 export const template = {
   '/src/index.js': {
     hidden: true,
-    code: `import React, { StrictMode } from "react";
+    code: `import { StrictMode } from "react";
 import { createRoot } from "react-dom/client";
 import "./styles.css";
 
diff --git a/src/components/PageHeading.tsx b/src/components/PageHeading.tsx
index 409bd03b8..3f15afe95 100644
--- a/src/components/PageHeading.tsx
+++ b/src/components/PageHeading.tsx
@@ -27,7 +27,6 @@ function PageHeading({
   tags = [],
   breadcrumbs,
 }: PageHeadingProps) {
-  console.log('version', version);
   return (
     <div className="px-5 sm:px-12 pt-3.5">
       <div className="max-w-4xl ms-0 2xl:mx-auto">
diff --git a/src/components/Seo.tsx b/src/components/Seo.tsx
index 628085744..b8a8394b6 100644
--- a/src/components/Seo.tsx
+++ b/src/components/Seo.tsx
@@ -124,7 +124,14 @@ export const Seo = withRouter(
         )}
         <link
           rel="preload"
-          href="/fonts/Source-Code-Pro-Regular.woff2"
+          href="https://react.dev/fonts/Source-Code-Pro-Regular.woff2"
+          as="font"
+          type="font/woff2"
+          crossOrigin="anonymous"
+        />
+        <link
+          rel="preload"
+          href="https://react.dev/fonts/Source-Code-Pro-Bold.woff2"
           as="font"
           type="font/woff2"
           crossOrigin="anonymous"
diff --git a/src/content/community/index.md b/src/content/community/index.md
index a22e50e13..255fad04e 100644
--- a/src/content/community/index.md
+++ b/src/content/community/index.md
@@ -29,4 +29,8 @@ Cada comunidad está constituida por miles de usuarios de React.
 
 ## Noticias {/*news*/}
 
+<<<<<<< HEAD
 Para conocer las últimas noticias sobre React, [sigue **@reactjs** en Twitter](https://twitter.com/reactjs) y el [blog oficial de React](/blog/) en este sitio web.
+=======
+For the latest news about React, [follow **@reactjs** on Twitter](https://twitter.com/reactjs), [**@react.dev** on Bluesky](https://bsky.app/profile/react.dev) and the [official React blog](/blog/) on this website.
+>>>>>>> 65d297e93b36be5370e58ab7828d022c741ecbe2
diff --git a/src/content/community/meetups.md b/src/content/community/meetups.md
index f6b0c27a6..175684f08 100644
--- a/src/content/community/meetups.md
+++ b/src/content/community/meetups.md
@@ -38,7 +38,7 @@ title: Reuniones de React
 
 ## Canadá {/*canada*/}
 * [Halifax, NS](https://www.meetup.com/Halifax-ReactJS-Meetup/)
-* [Montreal, QC - React Native](https://www.meetup.com/fr-FR/React-Native-MTL/)
+* [Montreal, QC](https://guild.host/react-montreal/)
 * [Vancouver, BC](https://www.meetup.com/ReactJS-Vancouver-Meetup/)
 * [Ottawa, ON](https://www.meetup.com/Ottawa-ReactJS-Meetup/)
 * [Saskatoon, SK](https://www.meetup.com/saskatoon-react-meetup/)
diff --git a/src/content/learn/build-a-react-app-from-scratch.md b/src/content/learn/build-a-react-app-from-scratch.md
index 9e319796c..2673429a7 100644
--- a/src/content/learn/build-a-react-app-from-scratch.md
+++ b/src/content/learn/build-a-react-app-from-scratch.md
@@ -115,10 +115,17 @@ De manera similar, si confías en que las aplicaciones usen tu framework para di
 
 La división del código por rutas, cuando se integra con el empaquetamiento y la obtención de datos, puede reducir el tiempo de carga inicial de su aplicación y el tiempo que tarda en renderizarse el contenido visible más grande de la aplicación. ([Largest Contentful Paint](https://web.dev/articles/lcp?hl=es-419)).
 
+<<<<<<< HEAD
 Para obtener instrucciones sobre cómo dividir el código, consulte la documentación de su herramienta de compilación:
 - [Optimizaciones de compilación](https://es.vite.dev/guide/features.html#optimizaciones-de-compilacion)
 - [División de código con Parcel](https://parceljs.org/features/code-splitting/)
 - [División de código con Rsbuild](https://rsbuild.dev/guide/optimization/code-splitting)
+=======
+For code-splitting instructions, see your build tool docs:
+- [Vite build optimizations](https://vite.dev/guide/features.html#build-optimizations)
+- [Parcel code splitting](https://parceljs.org/features/code-splitting/)
+- [Rsbuild code splitting](https://rsbuild.dev/guide/optimization/code-splitting)
+>>>>>>> 65d297e93b36be5370e58ab7828d022c741ecbe2
 
 ### Mejorar el rendimiento de las aplicaciones {/*improving-application-performance*/}
 
diff --git a/src/content/learn/preserving-and-resetting-state.md b/src/content/learn/preserving-and-resetting-state.md
index 16000f269..0ae867a35 100644
--- a/src/content/learn/preserving-and-resetting-state.md
+++ b/src/content/learn/preserving-and-resetting-state.md
@@ -2011,7 +2011,7 @@ export default function ContactList() {
       <label>
         <input
           type="checkbox"
-          value={reverse}
+          checked={reverse}
           onChange={e => {
             setReverse(e.target.checked)
           }}
@@ -2110,7 +2110,7 @@ export default function ContactList() {
       <label>
         <input
           type="checkbox"
-          value={reverse}
+          checked={reverse}
           onChange={e => {
             setReverse(e.target.checked)
           }}
diff --git a/src/content/learn/removing-effect-dependencies.md b/src/content/learn/removing-effect-dependencies.md
index 708d8f55f..e25e3023b 100644
--- a/src/content/learn/removing-effect-dependencies.md
+++ b/src/content/learn/removing-effect-dependencies.md
@@ -1239,7 +1239,11 @@ export default function Timer() {
 
 </Sandpack>
 
+<<<<<<< HEAD
 En lugar de leer `count` dentro del Efecto, pasas a React una instrucción `c => c + 1` ("¡incrementa este número!"). React la aplicará en el próximo renderizado. Y dado que ya no tienes que leer el valor de `count` dentro de tu Efecto, puedes mantener vacío (`[]`) el *array* de dependencias de tu Efecto. Así se evita que tu Efecto recree el intervalo en cada tic.
+=======
+Instead of reading `count` inside the Effect, you pass a `c => c + 1` instruction ("increment this number!") to React. React will apply it on the next render. And since you don't need to read the value of `count` inside your Effect anymore, you can keep your Effect's dependencies empty (`[]`). This prevents your Effect from re-creating the interval on every tick.
+>>>>>>> 65d297e93b36be5370e58ab7828d022c741ecbe2
 
 </Solution>
 
diff --git a/src/content/learn/reusing-logic-with-custom-hooks.md b/src/content/learn/reusing-logic-with-custom-hooks.md
index ad6f92564..4b6813ead 100644
--- a/src/content/learn/reusing-logic-with-custom-hooks.md
+++ b/src/content/learn/reusing-logic-with-custom-hooks.md
@@ -820,7 +820,11 @@ export default function ChatRoom({ roomId }) {
   // ...
 ```
 
+<<<<<<< HEAD
 y lo pasas como entrada a otro Hook:
+=======
+and passing it as an input to another Hook:
+>>>>>>> 65d297e93b36be5370e58ab7828d022c741ecbe2
 
 ```js {6}
 export default function ChatRoom({ roomId }) {
@@ -2081,7 +2085,6 @@ Escribe `useInterval` en el archivo `useInterval.js` e impórtalo en el archivo
 <Sandpack>
 
 ```js
-import { useState } from 'react';
 import { useCounter } from './useCounter.js';
 
 export default function Counter() {
diff --git a/src/content/learn/separating-events-from-effects.md b/src/content/learn/separating-events-from-effects.md
index 5df506f44..109ce0ec7 100644
--- a/src/content/learn/separating-events-from-effects.md
+++ b/src/content/learn/separating-events-from-effects.md
@@ -439,8 +439,14 @@ function ChatRoom({ roomId, theme }) {
   // ...
 ```
 
+<<<<<<< HEAD
 Esto resuelve el problema. Ten en cuenta que has tenido que *eliminar* `onConnected` de la lista de dependencias de tu Efecto. **Los Eventos de Efecto no son reactivos y deben ser omitidos de las dependencias.**
 Verifica que el nuevo comportamiento funciona como esperas:
+=======
+This solves the problem. Note that you had to *remove* `theme` from the list of your Effect's dependencies, because it's no longer used in the Effect. You also don't need to *add* `onConnected` to it, because **Effect Events are not reactive and must be omitted from dependencies.**
+
+Verify that the new behavior works as you would expect:
+>>>>>>> 65d297e93b36be5370e58ab7828d022c741ecbe2
 
 <Sandpack>
 
diff --git a/src/content/reference/react-dom/preinit.md b/src/content/reference/react-dom/preinit.md
index 0ecd1972d..117fccac8 100644
--- a/src/content/reference/react-dom/preinit.md
+++ b/src/content/reference/react-dom/preinit.md
@@ -48,7 +48,7 @@ The `preinit` function provides the browser with a hint that it should start dow
 * `options`: an object. It contains the following properties:
   *  `as`: a required string. The type of resource. Its possible values are `script` and `style`.
   * `precedence`: a string. Required with stylesheets. Says where to insert the stylesheet relative to others. Stylesheets with higher precedence can override those with lower precedence. The possible values are `reset`, `low`, `medium`, `high`. 
-  *  `crossOrigin`: a string. The [CORS policy](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin) to use. Its possible values are `anonymous` and `use-credentials`. It is required when `as` is set to `"fetch"`.
+  *  `crossOrigin`: a string. The [CORS policy](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin) to use. Its possible values are `anonymous` and `use-credentials`.
   *  `integrity`: a string. A cryptographic hash of the resource, to [verify its authenticity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity).
   *  `nonce`: a string. A cryptographic [nonce to allow the resource](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/nonce) when using a strict Content Security Policy. 
   *  `fetchPriority`: a string. Suggests a relative priority for fetching the resource. The possible values are `auto` (the default), `high`, and `low`.
diff --git a/src/content/reference/react/useTransition.md b/src/content/reference/react/useTransition.md
index ffd16cdfc..1fb9a929a 100644
--- a/src/content/reference/react/useTransition.md
+++ b/src/content/reference/react/useTransition.md
@@ -163,7 +163,7 @@ function CheckoutForm() {
 
 The function passed to `startTransition` is called the "Action". You can update state and (optionally) perform side effects within an Action, and the work will be done in the background without blocking user interactions on the page. A Transition can include multiple Actions, and while a Transition is in progress, your UI stays responsive. For example, if the user clicks a tab but then changes their mind and clicks another tab, the second click will be immediately handled without waiting for the first update to finish. 
 
-To give the user feedback about in-progress Transitions, to `isPending` state switches to `true` at the first call to `startTransition`, and stays `true` until all Actions complete and the final state is shown to the user. Transitions ensure side effects in Actions to complete in order to [prevent unwanted loading indicators](#preventing-unwanted-loading-indicators), and you can provide immediate feedback while the Transition is in progress with `useOptimistic`.
+To give the user feedback about in-progress Transitions, the `isPending` state switches to `true` at the first call to `startTransition`, and stays `true` until all Actions complete and the final state is shown to the user. Transitions ensure side effects in Actions to complete in order to [prevent unwanted loading indicators](#preventing-unwanted-loading-indicators), and you can provide immediate feedback while the Transition is in progress with `useOptimistic`.
 
 <Recipes titleText="The difference between Actions and regular event handling">
 
@@ -1948,3 +1948,162 @@ When clicking multiple times, it's possible for previous requests to finish afte
 This is expected, because Actions within a Transition do not guarantee execution order. For common use cases, React provides higher-level abstractions like [`useActionState`](/reference/react/useActionState) and [`<form>` actions](/reference/react-dom/components/form) that handle ordering for you. For advanced use cases, you'll need to implement your own queuing and abort logic to handle this.
 
 
+Example of `useActionState` handling execution order:
+
+<Sandpack>
+
+```json package.json hidden
+{
+  "dependencies": {
+    "react": "beta",
+    "react-dom": "beta"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test --env=jsdom",
+    "eject": "react-scripts eject"
+  }
+}
+```
+
+```js src/App.js
+import { useState, useActionState } from "react";
+import { updateQuantity } from "./api";
+import Item from "./Item";
+import Total from "./Total";
+
+export default function App({}) {
+  // Store the actual quantity in separate state to show the mismatch.
+  const [clientQuantity, setClientQuantity] = useState(1);
+  const [quantity, updateQuantityAction, isPending] = useActionState(
+    async (prevState, payload) => {
+      setClientQuantity(payload);
+      const savedQuantity = await updateQuantity(payload);
+      return savedQuantity; // Return the new quantity to update the state
+    },
+    1 // Initial quantity
+  );
+
+  return (
+    <div>
+      <h1>Checkout</h1>
+      <Item action={updateQuantityAction}/>
+      <hr />
+      <Total clientQuantity={clientQuantity} savedQuantity={quantity} isPending={isPending} />
+    </div>
+  );
+}
+
+```
+
+```js src/Item.js
+import {startTransition} from 'react';
+
+export default function Item({action}) {
+  function handleChange(e) {
+    // Update the quantity in an Action.
+    startTransition(() => {
+      action(e.target.value);
+    });
+  }  
+  return (
+    <div className="item">
+      <span>Eras Tour Tickets</span>
+      <label htmlFor="name">Quantity: </label>
+      <input
+        type="number"
+        onChange={handleChange}
+        defaultValue={1}
+        min={1}
+      />
+    </div>
+  )
+}
+```
+
+```js src/Total.js
+const intl = new Intl.NumberFormat("en-US", {
+  style: "currency",
+  currency: "USD"
+});
+
+export default function Total({ clientQuantity, savedQuantity, isPending }) {
+  return (
+    <div className="total">
+      <span>Total:</span>
+      <div>
+        <div>
+          {isPending
+            ? "🌀 Updating..."
+            : `${intl.format(savedQuantity * 9999)}`}
+        </div>
+        <div className="error">
+          {!isPending &&
+            clientQuantity !== savedQuantity &&
+            `Wrong total, expected: ${intl.format(clientQuantity * 9999)}`}
+        </div>
+      </div>
+    </div>
+  );
+}
+```
+
+```js src/api.js
+let firstRequest = true;
+export async function updateQuantity(newName) {
+  return new Promise((resolve, reject) => {
+    if (firstRequest === true) {
+      firstRequest = false;
+      setTimeout(() => {
+        firstRequest = true;
+        resolve(newName);
+        // Simulate every other request being slower
+      }, 1000);
+    } else {
+      setTimeout(() => {
+        resolve(newName);
+      }, 50);
+    }
+  });
+}
+```
+
+```css
+.item {
+  display: flex;
+  align-items: center;
+  justify-content: start;
+}
+
+.item label {
+  flex: 1;
+  text-align: right;
+}
+
+.item input {
+  margin-left: 4px;
+  width: 60px;
+  padding: 4px;
+}
+
+.total {
+  height: 50px;
+  line-height: 25px;
+  display: flex;
+  align-content: center;
+  justify-content: space-between;
+}
+
+.total div {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-end;
+}
+
+.error {
+  color: red;
+}
+```
+
+</Sandpack>
diff --git a/src/content/reference/rsc/server-functions.md b/src/content/reference/rsc/server-functions.md
index 7e855d49a..b536c4b65 100644
--- a/src/content/reference/rsc/server-functions.md
+++ b/src/content/reference/rsc/server-functions.md
@@ -28,7 +28,11 @@ Para soportar Server Functions como bundler o framework, recomendamos usar una v
 
 </Note>
 
+<<<<<<< HEAD
 Cuando se define una Server Function con la directiva [`"use server"`](/reference/rsc/use-server), tu framework creará automáticamente una referencia a la Server Function, y pasará esa referencia al Client Component. Cuando esa función es llamada en el cliente, React enviará una petición al servidor para ejecutar la función, y devolver el resultado.
+=======
+When a Server Function is defined with the [`"use server"`](/reference/rsc/use-server) directive, your framework will automatically create a reference to the server function, and pass that reference to the Client Component. When that function is called on the client, React will send a request to the server to execute the function, and return the result.
+>>>>>>> 65d297e93b36be5370e58ab7828d022c741ecbe2
 
 Las Server Functions pueden crearse en Server Components y pasarse como props a los Client Components, o pueden importarse y utilizarse en Client Components.
 
diff --git a/src/content/warnings/react-dom-test-utils.md b/src/content/warnings/react-dom-test-utils.md
index 2dc33e5b2..794bb1d11 100644
--- a/src/content/warnings/react-dom-test-utils.md
+++ b/src/content/warnings/react-dom-test-utils.md
@@ -2,8 +2,6 @@
 title: react-dom/test-utils Deprecation Warnings
 ---
 
-TODO: update for 19?
-
 ## ReactDOMTestUtils.act() warning {/*reactdomtestutilsact-warning*/}
 
 `act` from `react-dom/test-utils` has been deprecated in favor of `act` from `react`.
diff --git a/src/content/warnings/react-test-renderer.md b/src/content/warnings/react-test-renderer.md
index da7623fe2..dca1761b4 100644
--- a/src/content/warnings/react-test-renderer.md
+++ b/src/content/warnings/react-test-renderer.md
@@ -2,8 +2,6 @@
 title: react-test-renderer Deprecation Warnings
 ---
 
-TODO: Update this for 19?
-
 ## ReactTestRenderer.create() warning {/*reacttestrenderercreate-warning*/}
 
 react-test-renderer is deprecated. A warning will fire whenever calling ReactTestRenderer.create() or ReactShallowRender.render(). The react-test-renderer package will remain available on NPM but will not be maintained and may break with new React features or changes to React's internals.
diff --git a/src/styles/index.css b/src/styles/index.css
index 281111092..6b2915be4 100644
--- a/src/styles/index.css
+++ b/src/styles/index.css
@@ -12,7 +12,17 @@
     font-style: normal;
     font-weight: 400;
     font-display: swap;
-    src: url('/fonts/Source-Code-Pro-Regular.woff2') format('woff2');
+    src: url('https://react.dev/fonts/Source-Code-Pro-Regular.woff2')
+      format('woff2');
+  }
+
+  @font-face {
+    font-family: 'Source Code Pro';
+    font-style: normal;
+    font-weight: 700;
+    font-display: swap;
+    src: url('https://react.dev/fonts/Source-Code-Pro-Bold.woff2')
+      format('woff2');
   }
 
   /* Latin */