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React 19.2: React in its sigma era

Anju Karanji on November 12, 2025

The lights dim — or maybe that's just dark mode — and somewhere buried inside a million open tabs, I, React 19.2, take a deep breath. I'm the mil...
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MartinJ

Just spent 30 min with ChatGPT decoding all the cultural references here (it seems I'm well into my own omega era). Finally cracked it. You're wasted writing tech puffs Anju - time you started on the great novel you're always thinking about. Nice work, though.

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Anju Karanji

Oh my gosh! This made me love you instantly!😂
If I ever write a book, you’re 100% going in the acknowledgements.

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Ying Rao

LOL. Hi React 19.2. Love the way you put it :)

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Anju Karanji

Thank you! Seriously appreciating the appreciation 😄🙇🏽‍♀️

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Usama

This is hands down the most entertaining tech article I've read in a while! 😂 The way you explained as "on-again-off-again couple energy" made the concept stick instantly - I always struggled to understand why we needed another way to hide components, but the Netflix password analogy is chef's kiss.

The useEventEffect explanation as "Gen-Z stare with boundaries" is brilliant too. I've been overusing useEffect dependencies and constantly running into re-render issues. Your point about "not every update is about me" really hit home.

Also appreciate the honesty about cacheSignal - "not all my kids turned out equally awesome" made me laugh out loud. More tech writers should be this real about which features actually matter in day-to-day work.

The performance tracks section is super helpful too - I've been staring at flame graphs feeling lost, so the "Spotify Wrapped for renders" comparison actually makes me want to dive into DevTools now.

Can't wait to try out the React Compiler! Bookmarking this gem. Thanks for making React 19.2 actually fun to learn about! ✨

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Anju Karanji

Thank you, Usama!!
My whole intention with writing is to make concepts stick, and honestly, I absolutely love the book Head First Java. It was a huge inspiration for me.
I’m really glad the analogies landed!
And yes... cacheSignal really is that kid :)
Thanks again for such a thoughtful comment. You made my day!

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ssekabira robert sims

Nice one, thanks for the alarm

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Anju Karanji

haha glad my lil siren did its job :) but thank you!

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ssekabira robert sims

Always

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Kelly Thomas

Great post. React 19.2 truly represents a more focused and efficient direction for the framework.

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Anju Karanji

Thank you! I’m excited about the direction React is taking as well. It’s great to see the team tackling the pain points around effects and memoization fatigue. Glad you liked my post.

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Diaz Lezdo

👍🙌

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Anju Karanji

🙂🙌

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Sufyan Shahid

Nobody explained like this before :D Such a great share

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Anju Karanji • Edited

Thank you!! That really means a lot!

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Mashraf Aiman

This is insanely good!
As someone who’s building AI-powered web apps and constantly dealing with React’s “mood swings,” your breakdown genuinely clarified things I thought I understood.
Super clean, super fun and surprisingly useful for my own dynamic React experiments.
Instant followed and bookmarked.

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Anju Karanji • Edited

Thank you!! This truly means a lot.
React’s chaos binds us all!
Appreciate the follow!

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Kanza Naveed

I fail to believe this is written by a human. This humor is peak Chat GPT personality.

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Anju Karanji

Also, my first troll - milestone unlocked! 😄

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Anju Karanji • Edited

I’ll take it. ChatGPT wishes it had my brain 😏

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KC

Nice article. Will definitely use this post as one of the references to research on 19.2 and implement these features in one of my upcoming projects

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Anju Karanji

Thank you! Super happy it helped! All the best with your project.