Who contributed to Meta on July 27, 2026?

1 developer shipped this update, including gaearon.

What were the notable Meta updates?

[Bench] Add JSON output and declare missing dependency and [Bench] Add JSON output and declare missing dependency (#37127).

♥

Jul 27, 2026

$ the-wire · showcase

REACT BENCH TOOLING GETS JSON OUTPUT, EYES NEXT.JS INTEGRATION

By RepoJournal · Filed 06:58 UTC on July 27, 2026 · About Meta · Composed from the cited sources · methodology

1 person shipped this

gaearon @gaearon 2 cited

React's benchmark suite now exports machine-readable JSON, unblocking its adoption in Next.js performance tracking.

Dan Abramov landed a bench infrastructure upgrade [1] that adds JSON output capability and declares missing dependencies, work discovered while wiring React's benchmarks into the Next.js test pipeline [2]. The change is minimal but purposeful: React's performance telemetry can now feed directly into downstream build tools instead of requiring manual parsing. This matters because Next.js has been waiting on exactly this capability [2] to automate performance regression detection across releases. The bench improvements ship lean, 1 commit across the frame, solving a real integration blocker without scope creep.

Action items

→ Review bench JSON schema if you're consuming React performance data facebook/react [plan]

References

[1] [Bench] Add JSON output and declare missing dependency ↗ facebook/react
[2] [Bench] Add JSON output and declare missing dependency (#37127) ↗ facebook/react

$ ls meta/reviews/ # the step-back reads

the week in review React 19.3 ships View Transitions, RN 0.88-rc breaks Touchable the month in review React, React Native, and Jest harden the stack

Full archive → Weekly reviews →

Quick answers

What shipped in Meta on July 27, 2026?: React's benchmark suite now exports machine-readable JSON, unblocking its adoption in Next.js performance tracking. In total, 1 commits and 1 pull requests landed.
Who contributed to Meta on July 27, 2026?: 1 developer shipped this update, including gaearon.
What were the notable Meta updates?: [Bench] Add JSON output and declare missing dependency and [Bench] Add JSON output and declare missing dependency (#37127).

♥

$ log Meta --recent

2026-09-17 React Native strips dead config, React compiler fixes exponent folding 21 shipped 2026-09-16 React Native's generated SwiftPM manifests inherit the app's iOS floor, and SectionList scrolls to the right row 30 shipped 2026-09-15 React stops emulating bubbling for toggle events, fixes Fragment compareDocumentPosition 9 shipped 2026-09-14 React Native's Babel preset stops dropping Platform.select side effects 6 shipped

$ log --all # elsewhere on the wire

Alignment & Post-training 2026-10-25 GSM8K scoring parses answers as exact decimals AI Red Teaming 2026-10-25 PyRIT closes a judge-spoofing hole, promptfoo accepts Langfuse v6

$ ls showcases/

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