---
title: "React 19 Source Migration Patterns - Air Market"
description: "You are upgrading source files to React 19 and want to know what actually needs changing in each one. This is a reference of the migration patterns: what moved in the API, how refs are handled now, a…"
canonical: "https://airmarket.ai/app/react19-source-patterns"
---

[Air Market](/) / [Developer Tools](/category/devtools) / React 19 Source Migration Patterns

Skill by [GitHub](/@github)

# React 19 Source Migration Patterns

Look up what changed before you edit each source file for React 19

## What this does

You are upgrading source files to React 19 and want to know what actually needs changing in each one. This is a reference of the migration patterns: what moved in the API, how refs are handled now, and what context looks like. Open it while you work through the files.

### Top 3 things it does for you

- Check which APIs changed before touching a file
- Update ref handling for React 19
- Bring context usage in line with the new version

## Information

**React 19 Source Migration Patterns at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [GitHub](/@github) |
| Category | [Developer Tools](/category/devtools) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 13 KB |
| Licence | MIT |
| Repository | [github/awesome-copilot](https://github.com/github/awesome-copilot/tree/90921cc46f4e452ea379e70884d60ec25263f16a/skills/react19-source-patterns) |
| GitHub stars | 38,187 (as of Nov 2026) |
| Installs | 993, counted by skills.sh (Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of React 19 Source Migration Patterns and flagged nothing. AIR's verdict: **safe**.

**What React 19 Source Migration Patterns's check was run against**

|  |  |
| --- | --- |
| Commit | 90921cc46f4e452ea379e70884d60ec25263f16a |
| Content hash | 51e80bfb4ee19af572bef6cb34d53966fb28d431277654e84d645cfa02a4cf0e |
| Files read | [Browse the files at this exact commit](https://github.com/github/awesome-copilot/blob/90921cc46f4e452ea379e70884d60ec25263f16a/skills/react19-source-patterns/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for React 19 Source Migration Patterns](/security/react19-source-patterns)

## About React 19 Source Migration Patterns

A reference for migrating source files to React 19. It collects the patterns you need per file rather than describing the upgrade in the abstract.

It covers API changes, ref handling and context updates.

## What's inside

- SKILL.md - instructions
- references/api-migrations.md - reference

## Questions

### Is React 19 Source Migration Patterns safe to install?

AIR scanned this exact version of React 19 Source Migration Patterns and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 90921cc46f4e, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/react19-source-patterns.

### How do I install React 19 Source Migration Patterns?

Open https://airmarket.ai/app/react19-source-patterns on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/github/awesome-copilot/tree/90921cc46f4e452ea379e70884d60ec25263f16a/skills/react19-source-patterns. Install from that link, not the branch.

## Related on Air Market

- [More Developer Tools listings](/category/devtools)
- [Everything by GitHub](/@github)

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Canonical URL: <https://airmarket.ai/app/react19-source-patterns>