Maintainers

The MAINTAINERS file at the repo root lists the people whose PRs auto-receive the "core team" label (.github/workflows/shared_label_core_team_prs.yml):

acdlite, eps1lon, EugeneChoi4, gaearon, gnoff, unstubbable, hoxyq,
jackpope, jbonta, jbrown215, josephsavona, kassens, mattcarrollcode,
mofeiZ, mvitousek, pieterv, poteto, rickhanlonii, sebmarkbage,
sethwebster, sophiebits, elicwhite, yuzhi

There is no CODEOWNERS file in this repo. The mapping below is derived from git log against the default branch, restricted to commits in roughly the last 12 months. Bot accounts (dependabot[bot], github-actions[bot], copilot[bot]) are excluded.

Subsystem	Recent contributors (last 12 months)	Notes
packages/react-reconciler/	acdlite, sebmarkbage, eps1lon, gnoff, sophiebits, rickhanlonii	The fiber engine; high churn around View Transitions and Activity in 2025–2026.
packages/react-dom/, packages/react-dom-bindings/	gnoff, sebmarkbage, eps1lon, sophiebits, acdlite	DOM client + Fizz drivers.
packages/react-server/	sebmarkbage, gnoff, eps1lon, unstubbable	Fizz core + Flight writer.
packages/react-server-dom-*	sebmarkbage, unstubbable, gnoff	Bundler-specific Flight clients.
packages/react/	sebmarkbage, eps1lon, acdlite	Public API surface.
packages/scheduler/	acdlite, sebmarkbage, sophiebits, eps1lon	Cooperative scheduler.
packages/react-native-renderer/	rubennorte, story, jbrown215, vmx, plus the React Native team	Fabric host config.
packages/react-devtools-shared/ and siblings	hoxyq, jackpope, mofeiZ, eps1lon, jorge-cab	DevTools backend + frontend.
packages/eslint-plugin-react-hooks/	poteto, mvitousek, mofeiZ, josephsavona	The hooks plugin (now compiler-aware).
packages/use-sync-external-store/, react-cache, react-is, etc.	sebmarkbage, eps1lon	Smaller packages, light churn.
compiler/packages/babel-plugin-react-compiler/	josephsavona, mvitousek, mofeiZ, poteto, jbonta	The compiler proper.
compiler/packages/eslint-plugin-react-compiler/	mvitousek, poteto	Compiler-aware lint rules.
compiler/packages/react-forgive/	mvitousek, jbonta	The VS Code extension.
compiler/packages/react-mcp-server/	mvitousek, josephsavona	The MCP server.
scripts/rollup/, scripts/jest/, scripts/release/	sebmarkbage, eps1lon, acdlite, rickhanlonii	Build, test, release infrastructure.
scripts/eslint-rules/	eps1lon, sebmarkbage, kassens	Custom React-internal lint rules.
.github/workflows/	rickhanlonii, eps1lon, sebmarkbage	CI workflows.

How to figure out who to ping

1. Run git log --since="6 months ago" -- packages/<pkg>/ to see the most recent committers in your area.
2. Look for the most recent merger of a similar PR (git log --grep "<keyword>") and ping that person.
3. For reconciler-internal questions, the highest-signal channel is acdlite or sebmarkbage.
4. For compiler-internal questions, josephsavona or mvitousek.
5. For DevTools, hoxyq or jackpope.
6. For build / test infra, eps1lon or rickhanlonii.

Caveat

The contributor lists above are derived from public git history and reflect who has been most active, not who is responsible for. Since the team works mostly in the open, the two correlate strongly; but for organizational ownership questions (e.g. "who can approve a release?") the canonical reference is the MAINTAINERS file plus the React core team's internal coordination.