React Native: Crash Fixes and Thread Safety Heroes
Today we're diving into two important stability fixes that landed in the React Native codebase. The standout is Fabrizio Cucci's critical fix for Hermes crashes affecting thousands of iOS users when TurboModule methods throw exceptions on the wrong thread. We also see continued maintenance work on Android scroll components.
Duration: PT3M38S
Episode overview
This episode is a short developer briefing from React Native.
It explains recent repository work in plain language.
- Show: React Native
- Published: 2026-03-30T10:00:47Z
- Audio duration: PT3M38S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Hey there, React Native developers! Welcome back to another episode of your daily dose of React Native goodness. I'm your host, and it's March 30th, 2026. Grab your favorite beverage because we've got some really interesting stability fixes to talk about today.
You know, sometimes the most important work in software development isn't the flashy new features that get all the attention on Twitter. Sometimes it's the quiet heroes fixing crashes that are affecting thousands of users. And that's exactly what we're celebrating today.
Let's jump right into our main story, and this one's a doozy. Fabrizio Cucci just landed a critical fix for what was causing over 4,500 Hermes crashes on iOS. Now, this is the kind of bug that makes you appreciate just how complex React Native's architecture really is, but I promise I'll break it down in a way that…
Here's what was happening: when an async void TurboModule method would throw an NSException, the system was trying to convert that exception to a JavaScript error. Sounds reasonable, right? Well, the problem was it was doing this conversion on the wrong thread. And here's the kicker - Hermes's JSI runtime isn't…
What I love about Fabrizio's fix is…
T…
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