Breaking: #78627 - Lowlevel MissingRelationsCommand parameters changed 

See forge#78627

Description 

The existing CLI command within EXT:lowlevel for showing files within uploads/ that are used by records twice (non-FAL) has been migrated to a Symfony Console command.

The command previously available via ./typo3/cli_dispatch.phpsh lowlevel_cleaner double_files is now available via ./typo3/sysext/core/bin/typo3 cleanup:multiplereferencedfiles and allows the following CLI options to be set:

--update-refindex - updates the reference index before scanning for multiple-referenced files. If not set, the user is asked if the task should be run --dry-run - do not copy the files to single-reference them, but only list the references and files.

The PHP class of the old CLI command TYPO3\CMS\Lowlevel\DoubleFilesCommand has been removed.

Impact 

Calling the old CLI command ./typo3/cli_dispatch.phpsh lowlevel_cleaner double_files will result in an error message.

Affected Installations 

Any TYPO3 instances using the lowlevel cleaner for finding files with two records pointing to them.

Migration 

Update the CLI call on your servers to the new command line and available options as shown above.