Updating from older CKEditor 5 versions
If you are upgrading a project from an older version of CKEditor 5, it is best to update one version at a time to avoid unexpected issues.
Go to the LTS documentation, which includes migration guides for earlier releases. By clicking this link you will be redirected to the older version of the documentation in a new browser tab.
After upgrading your project to version 42, return to the current documentation and continue updating to the latest version.