v4.14.0 to v4.15.5 migration guide

The present migration guide upgrades Strapi v4.14.0 to v4.15.5. Strapi v4.15.5 updated the loading order of the middlewares, ensuring the logger middleware is loaded first. The migration guide consists of:

• Upgrading the application dependencies
• Manually updating the loading order of middlewares in the configuration file
• Reinitializing the application

Upgrading the application dependencies to 4.15.5

Stop the server before starting the upgrade.

1. Upgrade all of the Strapi packages in package.json to 4.15.5:

   path: package.json

   {
     // ...
     "dependencies": {
       "@strapi/strapi": "4.15.5",
       "@strapi/plugin-users-permissions": "4.15.5",
       "@strapi/plugin-i18n": "4.15.5",
       "react": "^18.0.0",
       "react-dom": "^18.0.0",
       "react-router-dom": "5.3.4",
       "styled-components": "5.3.3"
   
       // ...
     }
   }

2. Save the edited package.json file.

3. Run the install command:

Manually update the loading order of middlewares

Manually update the config/middlewares.js configuration file to ensure that strapi::logger is the first item in the array:

./config/middlewares.js

module.exports = [
  "strapi::logger",
  "strapi::errors",
  "strapi::security",
  "strapi::cors",
  // …
];

./config/middlewares.ts

export default [
  "strapi::logger",
  "strapi::cors",
  "strapi::body",
  "strapi::errors",
  // …
];

Rebuild the application

Restart the application