wp-includes/ID3/module.tag.id3v2.php:2246$indexintstring public function LookupExtendedHeaderRestrictionsTextFieldSize($index) { static $LookupExtendedHeaderRestrictionsTextFieldSize = array( 0x00 => 'No restrictions', 0x01 => 'No string is longer than 1024 characters', 0x02 => 'No string is longer than 128 characters', 0x03 => 'No string is longer than 30 characters', ); return (isset($LookupExtendedHeaderRestrictionsTextFieldSize[$index]) ? $LookupExtendedHeaderRestrictionsTextFieldSize[$index] : ''); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/ID3/module.tag.id3v2.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.