Who contributed to Meta on August 26, 2026?

6 developers shipped this update, including eps1lon, Pieter De Baets, Nicola Corti, Christian Falch, Christoph Purrer, and renovate.

What were the notable Meta updates?

Remove FileIoHandler (#58096), Enable RuntimeScheduler queue clearing on error by default (#58129), and Resolve SwiftPM manifest naming collisions (#58044).

React Native cuts FileIoHandler security risk

By RepoJournal · Filed 06:58 UTC on August 26, 2026 · About Meta

6 people shipped this

eps1lon @eps1lon 3 cited

Pieter De Baets @javache 2 cited

Nicola Corti @cortinico 1 cited

Christian Falch @chrfalch 1 cited

renovate @renovate 1 cited

Christoph Purrer @christophpurrer

React Native patches a serious security hole and stabilizes its Android E2E pipeline in one busy day.

React Native shipped a high-priority fix by removing the FileIoHandler packager handler, which "is a major security risk if left unguarded in production" and was never ported to iOS [1]. In the same release, RuntimeScheduler now clears its queues on error by default, ending an experiment that prevents queued work from executing after a task throws [2]. The SwiftPM manifest naming collision fix resolves a class of cryptic duplicate-name errors that broke builds for packages like powersync/react-native [3]. On the CI front, React's pipeline is getting faster, with eps1lon moving build artifact downloads and Java setup into background steps to overlap network and CPU work [4][5]. A follow-up pins build shard weights per run to keep worker assignments identical, avoiding flaky bundle builds [6]. React Native also stabilized its Android E2E tests for ARM64 APKs, updating screenshot baselines and limiting certain FlatList flows to release builds [7]. Finally, a maintenance PR refreshes all Jest lock files [8]. This is the upgrade you've been waiting for: patch your dev servers before anyone exploits that handler.

Action items

→ Upgrade React Native to a version that includes the FileIoHandler removal before next deploy facebook/react-native [immediate]
→ Adopt the RuntimeScheduler queue-clearing default in your test runs facebook/react-native [plan]
→ Monitor the SwiftPM collision fix if you depend on scoped npm packages facebook/react-native [plan]
→ Review the background artifact download and shard pinning changes in React's CI facebook/react [monitor]

References

[1] Remove FileIoHandler (#58096) facebook/react-native
[2] Enable RuntimeScheduler queue clearing on error by default (#58129) facebook/react-native
[3] Resolve SwiftPM manifest naming collisions (#58044) facebook/react-native
[4] [ci] Download build artifacts in the background during job setup ↗ facebook/react
[5] [ci] Run Java setup in the background during build job setup ↗ facebook/react
[6] [ci] Pin build shard weights per run to keep worker assignments identical ↗ facebook/react
[7] Stabilize Android E2E tests for ARM64 APKs (#58140) facebook/react-native
[8] chore(deps): lock file maintenance ↗ facebook/jest

Quick answers

What shipped in Meta on August 26, 2026?: React Native patches a serious security hole and stabilizes its Android E2E pipeline in one busy day. In total, 21 commits and 4 pull requests landed.
Who contributed to Meta on August 26, 2026?: 6 developers shipped this update, including eps1lon, Pieter De Baets, Nicola Corti, Christian Falch, Christoph Purrer, and renovate.
What were the notable Meta updates?: Remove FileIoHandler (#58096), Enable RuntimeScheduler queue clearing on error by default (#58129), and Resolve SwiftPM manifest naming collisions (#58044).

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