# Capacitor Plugin Upgrade V4 To V5

> Guides the agent through upgrading a Capacitor plugin from v4 to v5. Use when the plugin targets Capacitor 4 and needs the v5 migration path. Do not use for app upgrades, other major versions, or non-Capacitor plugins.

- Skill: `cap-go/capacitor-plugin-upgrade-v4-to-v5` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add cap-go/capacitor-plugin-upgrade-v4-to-v5`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cap-go/capacitor-plugin-upgrade-v4-to-v5/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: cap-go (https://skillmd.com/u/cap-go)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/cap-go/capacitor-plugin-upgrade-v4-to-v5

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# Capacitor Plugin Upgrade v4 to v5

Upgrade a Capacitor plugin from version 4 to version 5.

## When to Use This Skill

- User says the plugin targets Capacitor 4 and must move to v5
- User wants the exact v4 to v5 migration path
- User needs v5-specific native and package updates

## Live Project Snapshot

Plugin and Capacitor package snapshot:
!`node -e "const fs=require('fs');if(!fs.existsSync('package.json'))process.exit(0);const pkg=JSON.parse(fs.readFileSync('package.json','utf8'));const out=['package.name='+(pkg.name||''),'package.version='+(pkg.version||'')];for(const section of ['peerDependencies','dependencies','devDependencies']){for(const [name,version] of Object.entries(pkg[section]||{})){if(name.startsWith('@capacitor/'))out.push(section+'.'+name+'='+version)}}console.log(out.join('\n'))"`

Example and native project paths:
!`find . -maxdepth 3 \( -path './example-app' -o -path './ios' -o -path './android' \)`

## Procedure

1. Start from the injected snapshot and confirm the current Capacitor peer dependency range in `package.json`.
2. Update the peer dependency range to Capacitor 5.
3. Review the v4 to v5 migration notes before editing native files.
4. Update the example app if it exists.
5. Run `npm install`.
6. Sync and verify the example or test app.

## Error Handling

- If the example app breaks, fix the plugin API or native bridge before moving on.
- If iOS fails, verify the deployment target for Capacitor 5.
- If Android fails, verify the Gradle and Java requirements for Capacitor 5.