Merge pull request #116 from reactjs/sync-2c7798dc

Sync with react.dev @ 2c7798d

Author: orama254

src/content/community/conferences.md

@@ -76,10 +76,41 @@ July 03 - 05, 2025. In-person in Bangalore, India
 
 [Website](https://reactnexus.com/) - [Twitter](https://x.com/ReactNexus) - [Bluesky](https://bsky.app/profile/reactnexus.com) - [Linkedin](https://www.linkedin.com/company/react-nexus) - [YouTube](https://www.youtube.com/reactify_in)
 
-### React Summit 2025 {/*react-summit-2025*/}
-June 13 - 17, 2025. In-person in Amsterdam, Netherlands + remote (hybrid event)
+### React Summit US 2025 {/*react-summit-us-2025*/}
+November 18 - 21, 2025. In-person in New York, USA + remote (hybrid event)
+
+[Website](https://reactsummit.us/) - [Twitter](https://x.com/reactsummit)
+
+### React Advanced London 2025 {/*react-advanced-london-2025*/}
+November 28 & December 1, 2025. In-person in London, UK + online (hybrid event)
+
+[Website](https://reactadvanced.com/) - [Twitter](https://x.com/reactadvanced)
+
+### CityJS Singapore 2026 {/*cityjs-singapore-2026*/}
+February 4-6,  2026. In-person in Singapore
+
+[Website](https://india.cityjsconf.org/) - [Twitter](https://x.com/cityjsconf) - [Bluesky](https://bsky.app/profile/cityjsconf.bsky.social)
+
+### CityJS New Delhi 2026 {/*cityjs-newdelhi-2026*/}
+February 12-13,  2026. In-person in New Delhi, India
+
+[Website](https://india.cityjsconf.org/) - [Twitter](https://x.com/cityjsconf) - [Bluesky](https://bsky.app/profile/cityjsconf.bsky.social)
+
+
+### React Paris 2026 {/*react-paris-2026*/}
+March 26 - 27, 2026. In-person in Paris, France (hybrid event)
+
+[Website](https://www.reactuniverseconf.com/) - [Twitter](https://twitter.com/react_native_eu) - [LinkedIn](https://www.linkedin.com/events/reactuniverseconf7163919537074118657/)
+
+
+### CityJS London 2026 {/*cityjs-london-2026*/}
+April 14-17,  2026. In-person in London
+
+[Website](https://india.cityjsconf.org/) - [Twitter](https://x.com/cityjsconf) - [Bluesky](https://bsky.app/profile/cityjsconf.bsky.social)
+
+
+## Past Conferences {/*past-conferences*/}
 
-[Website](https://reactsummit.com/) - [Twitter](https://x.com/reactsummit)
 
 ### React Norway 2025 {/*react-norway-2025*/}
 June 13, 2025. In-person in Oslo, Norway + remote (virtual event)

src/content/learn/thinking-in-react.md

@@ -37,15 +37,9 @@ Anza kwa kuchora visanduku kuzunguka kila kijenzi na kijenzi kidogo kwenye kiigi
 
 Kulingana na msingi wako, unaweza kufikiria kugawanya muundo katika vijenzi kwa njia tofauti:
 
-<<<<<<< HEAD
 * **Programming**--tumia mbinu zile zile za kuamua ikiwa unapaswa kuunda kitendaji kipya au object. Mbinu moja kama hiyo ni [kanuni ya uwajibikaji mmoja (single responsibility principle)](https://en.wikipedia.org/wiki/Single_responsibility_principle), yaani, kijenzi kinapaswa kufanya jambo moja tu. Ikiwa kitaishia kukua, inapaswa kigawanywe kiwe vijenzi vidogo.
 * **CSS**--fikiria ni nini ungetengeneza viteule vya darasa. (Hatahivyo, vijenzi ni vidogo kwa kiasi fulani.)
 * **Design**--fikiria jinsi unavyoweza kupanga safu za muundo.
-=======
-* **Programming**--use the same techniques for deciding if you should create a new function or object. One such technique is the [separation of concerns](https://en.wikipedia.org/wiki/Separation_of_concerns), that is, a component should ideally only be concerned with one thing. If it ends up growing, it should be decomposed into smaller subcomponents. 
-* **CSS**--consider what you would make class selectors for. (However, components are a bit less granular.)
-* **Design**--consider how you would organize the design's layers.
->>>>>>> f8c81a0f4f8e454c850f0c854ad054b32313345c
 
 Ikiwa JSON yako imeundwa vizuri, mara nyingi utapata kwamba inaelekeza kwa muundo wa vijenzi vya UI yako. Hiyo ni kwa sababu UI na miundo ya data mara nyingi huwa na usanifu sawa wa habari--yaani, umbo sawa. Tenganisha UI yako katika vijenzi, ambapo kila kijenzi kinalingana na kipande kimoja cha muundo yako wa data.
 

src/content/learn/tutorial-tic-tac-toe.md

@@ -283,9 +283,15 @@ Katika CodeSandbox utaona sehemu tatu kuu:
 
 ![CodeSandbox na msimbo wa mwanzo](../images/tutorial/react-starter-code-codesandbox.png)
 
+<<<<<<< HEAD
 1. Sehemu ya _Files_ na orodha ya mafaili kama `App.js`, `index.js`, `styles.css` na folda inayoitwa `public`
 1. _Kihariri cha msimbo_ ambapo utaona msimbo wa chanzo wa faili uliyouchagua
 1. Sehemu ya _kivinjari_ ambapo utaona jinsi msimbo ulioandika utakavyonyeshwa
+=======
+1. The _Files_ section with a list of files like `App.js`, `index.js`, `styles.css` in `src` folder and a folder called `public`
+1. The _code editor_ where you'll see the source code of your selected file
+1. The _browser_ section where you'll see how the code you've written will be displayed
+>>>>>>> 2c7798dcc51fbd07ebe41f49e5ded4839a029f72
 
 Faili ya `App.js` inapaswa kuchaguliwa katika sehemu ya _Files_. Maudhui ya faili hiyo katika _mhariri wa msimbo_ yanapaswa kuwa:
 
@@ -2247,7 +2253,11 @@ body {
 
 </Sandpack>
 
+<<<<<<< HEAD
 Unapozunguka kupitia orodha ya `history` ndani ya function unayopitisha kwa `map`, hoja ya `squares` inapitia kila kipengele cha `history`, na hoja ya `move` inapitia kila kiashiria cha orodha: `0`, `1`, `2`, …. (Katika hali nyingi, ungehitaji vipengele halisi vya orodha, lakini ili kuonyesha orodha ya harakati utahitaji tu viashiria.)
+=======
+As you iterate through the `history` array inside the function you passed to `map`, the `squares` argument goes through each element of `history`, and the `move` argument goes through each array index: `0`, `1`, `2`, …. (In most cases, you'd need the actual array elements, but to render a list of moves you will only need indexes.)
+>>>>>>> 2c7798dcc51fbd07ebe41f49e5ded4839a029f72
 
 Kwa kila harakati katika historia ya mchezo wa tic-tac-toe, unaunda kipengele cha orodha `<li>` kinachojumuisha kitufe `<button>`. Kitufe kinakuwa na kihariri cha `onClick` kinachoitwa function inayoitwa `jumpTo` (ambayo huja kuwa umeitekeleza bado).
 

src/content/reference/react/components.md

@@ -16,6 +16,7 @@ React exposes a few built-in components that you can use in your JSX.
 * [`<Profiler>`](/reference/react/Profiler) lets you measure rendering performance of a React tree programmatically.
 * [`<Suspense>`](/reference/react/Suspense) lets you display a fallback while the child components are loading.
 * [`<StrictMode>`](/reference/react/StrictMode) enables extra development-only checks that help you find bugs early.
+* [`<Activity>`](/reference/react/Activity) lets you hide and restore the UI and internal state of its children.
 
 ---
 

src/sidebarBlog.json

@@ -22,7 +22,7 @@
           "title": "React Compiler v1.0",
           "titleForHomepage": "React Compiler v1.0",
           "icon": "blog",
-          "date": "October 8, 2025",
+          "date": "October 7, 2025",
           "path": "/blog/2025/10/07/react-compiler-1"
         },
         {