ionic-app-upgrades

name ionic-app-upgrades description Guides the agent through upgrading an Ionic Framework app to a newer major version. Supports upgrades from Ionic 4 through 8, including multi-version jumps. Covers framework-specific migration steps for Angular, React, and Vue, component breaking changes, CSS variable updates, and browser support changes. Do not use for Capacitor version upgrades (use capacitor-app-upgrades instead), for plugin library upgrades, or for non-Ionic UI frameworks. license MIT compatibility Requires Node.js and npm. metadata {"author":"capawesome-team","source":"https://github.com/capawesome-team/skills/tree/main/skills/ionic-app-upgrades"} Ionic App Upgrade Upgrade an Ionic Framework app to a newer major version (4 to 5, 5 to 6, 6 to 7, or 7 to 8). Prerequisites Target Version Angular React Vue 5 8.2+ 16+ N/A 6 12+ 17+ 3.0.6+ 7 14+ 17+ 3.0.6+ 8 16+ 17+ 3.0.6+ Procedures Step 1: Detect Current Version Read @ionic/angular , @ionic/react , or @ionic/vue version from package.json ( dependencies or devDependencies ). Determine the current major version and which framework is in use (Angular, React, Vue, or Core/Standalone). Ask the user for the target version. Default to the latest (8) if not specified. Step 2: Execute Upgrade For each major version jump between the current and target version, apply the corresponding upgrade guide sequentially : Current to Target Reference 4 to 5 references/upgrade-v4-to-v5.md 5 to 6 references/upgrade-v5-to-v6.md 6 to 7 references/upgrade-v6-to-v7.md 7 to 8 references/upgrade-v7-to-v8.md For multi-version jumps (e.g., 5 to 8), apply each upgrade in order: Read and apply references/upgrade-v5-to-v6.md Build the project ( npm run build ), fix any errors, and verify the app runs Read and apply references/upgrade-v6-to-v7.md Build the project ( npm run build ), fix any errors, and verify the app runs Read and apply references/upgrade-v7-to-v8.md Build the project ( npm run build ), fix any errors, and verify the app runs Do not skip intermediate versions. Step 3: Final Verification After completing all upgrade steps: npm run build If the project uses Capacitor, also run: npx cap sync Error Handling If npm run build fails after an upgrade step, check the compiler errors. Most errors are caused by removed component properties, renamed CSS variables, or changed event handler signatures documented in the reference files. If Jest or unit tests fail, check the transformIgnorePatterns configuration — Ionic 6+ ships as ES Modules and requires Babel/Jest configuration updates. If CSS styles break after upgrade, check for removed CSS Shadow Parts and renamed CSS variables in the reference file for that version. If a multi-version upgrade fails mid-way, fix the current version step before proceeding to the next. If the project also uses Capacitor and platform builds fail, the Capacitor version may also need upgrading — use the capacitor-app-upgrades skill. Related Skills capacitor-app-upgrades — If Capacitor also needs upgrading alongside Ionic, use this skill for the Capacitor-specific upgrade steps. ionic-app-development — General Ionic development guidance. capacitor-plugins — For installing or reconfiguring plugins after the app upgrade.