TMiR 2025-04: React 19.1 helps debug owner stacks

Show Notes

• Quick hits
  • Job market: FRED data, Layoffs.fyi, Trueup.io
  • Conferences (React, Javascript)
    • App.js Conf May 28-30 Kraków, Poland
    • CityJS Athens May 27-31 Athens, Greece
    • React Summit June 13-17 Amsterdam, NL
    • React Conf is back Oct 7-8
    • SquiggleConf 2025 CFP closes May 23
  • Sponsored by Infinite Red
  • New releases
  • Anime.js v4
  • RN v79
  • Next.js 15.3
    • Rspack joins the Next.js ecosystem
  • React Aria April 11th
  • Redux Toolkit 2.7
  • Vitest 3.1
• Main Content
  • React Labs: View Transitions, Activity, and more
  • React 19.1
    • “Owner Stack” is a very underrated React concept
      • “One React mistake that's slowing you down”
      • Advanced React Component Patterns
      • Parents & Owners in React: Rendering Performance
  • Improvements in Expo using owner stack
  • Dan Abramov is writing again (don’t 👏ruin 👏 his 👏 process)
    • React for Two Computers (Complement to his React Conf talk)
    • JSX Over The Wire
    • Impossible Components
• ⚡ Lightning round ⚡
  • Next.js RFC: Deployment Adapters API
    • flightcontrol.dev from last year: Secret knowledge to self-host Next.js
  • Styled-Components in maintenance mode
    • RIP Styled-Components. Now What?
  • Redwood announces new Cloudflare-based RSC SDK, existing framework in community maintenance mode
  • TC39 kills Records and Tuples proposal. Possible alternative is “Composites”
  • React Compiler RC
  • "Just use Vite”… with the Workers runtime (Vite on Cloudflare)
  • React Router / Remix CVE
  • Silk Library - native-like swipeables for the web
  • {transitions} = f(state)
  • Tailwind 4, Bun, and old Macs: A Supermarket Bag And a Truckload Of FOMO
  • Introducing Firebase Studio
  • Gumroad is open source!
  • Automattic laid off 16% of staff

Creators and Guests

Host

Mark Erikson

An engineer maintaining Redux and Redux Toolkit, working at Replay.io to make smarter AI chat bots and debuggers using time travel.

Host

Mo

Head of Mobile at Theodo, a software consultancy that does native app development for iOS and Android

Producer

Carl Vitullo

Solopreneur just vibing, posts are probably bullshit. Community lead at Reactiflux, the largest chat community of React professionals.

What is This Month in React?

How busy professionals stay on top of the React ecosystem. We give you a 1 hour recap of the latest news and nuance in React's development and ecosystem, upcoming conferences, and open source releases. New episodes the first week of every month, with live recordings on the last Wednesday of every month in the Reactiflux stage.

Hosted Mark Erikson (Redux maintainer), Carl Vitullo (startup veteran), and Mo Khazali (head of mobile at Theodo). See something for us? Post to #tech-reads-and-news