WebP Express options for 0.11+' ); // PSST: When creating new migration files, remember to update WEBPEXPRESS_MIGRATION_VERSION in admin.php Option::updateOption('webp-express-migration-version', '5'); } else { Messenger::addMessage( 'error', 'Failed migrating WebP Express options to 0.11+. Probably you need to grant write permissions in your wp-content folder.' ); } } webpexpress_migrate5();