If you used devonfw-ide for your projects so far, and you want to switch to IDEasy, you should follow these steps in order to do it properly:
Step 1: Follow the setup guide to properly install IDEasy
Step 2: Get rid of all legacy by calling the following command:
upgrade-settings
Step 3: After running the command, you might need to update your xml files for our merger. Please consider reading our documentation for that topic: https://github.com/devonfw/IDEasy/blob/main/documentation/configurator.adoc