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Upgrade Product ≥ v13.1.0 (Migration from FlexForm Elements to Content Blocks)

From version 13.1.0 onwards, this product introduces major changes by migrating from outdated FlexForm-based elements to modern Content Blocks (EXT). Please follow the step-by-step migration guide below.
  1. Go to Admin Tools → T3planet License and update T3Bootstrap Theme (EXT) to the latest version.
  2. Make sure the Content Blocks extension (EXT) is installed, as it is required for this migration.
  3. Go to Admin Tools → Maintenance module and clear the cache. Also, click on the Dump Autoload button. For composer-based TYPO3 installations, run the following command:
Before running the Upgrade Wizard, please ensure that you create a backup of your database.
  1. Go to Admin Tools → Upgrade and click Run Upgrade Wizard.
  2. Click the Execute button for T3Bootstrap: Content Block Migration.
After completing these steps, all Custom Elements (structure and data) will be successfully migrated from FlexForm Elements to Content Blocks (EXT).