# acdlite/react-fiber-architecture

A description of React's new core algorithm, React Fiber

Repository: https://github.com/acdlite/react-fiber-architecture
Canonical: https://ross.abutalabs.com/products/react-fiber-architecture
License Family: other
Last push: 2024-07-02T17:40:28+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3698, "days_push": 792, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 13007, forks 762 (observed 2026-08-28T04:11:01.679306+00:00)

## What it is
A community-written technical document explaining React Fiber, the reimplementation of React's core reconciliation algorithm, including incremental rendering and scheduling concepts. It is a set of explanatory notes intended to help developers understand and contribute to React's internals.

## Use cases
- understand how React Fiber's reconciliation algorithm works
- learn about incremental rendering and time slicing in React
- prepare to contribute to the React codebase
- study React's scheduling and priority model
- explain React Fiber architecture to a team
- find prerequisites and resources for learning React internals

## When to choose
- you want a plain-language walkthrough of React Fiber's design
- you are studying React internals or preparing to contribute to React
- you need a curated set of prerequisites and external references on reconciliation

## When to avoid
- you need official, up-to-date React documentation
- you want runnable code or a library to install
- you are a beginner who has not yet learned basic React concepts

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: documentation, developer-tools
- domain: frontend, web-development, tutorials
- platform: -
- tags: react, react-fiber, reconciliation, architecture-notes, concurrency, web-server, nodejs

## Member repositories
- acdlite/react-fiber-architecture (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:01.679306+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:13:36.057364+00:00, confidence not recorded.
  - readme: https://github.com/acdlite/react-fiber-architecture (fetched 2026-08-28T04:11:01.679306+00:00, sha 73ab5c70748b)
- Data as of 2026-08-30T08:39:29.467469+00:00.