update.php

<?php

/**
 * @var rex_addon $this
 */

rex_extension::register('OUTPUT_FILTER', function () {
    rex_dir::copy($this->getPath('data'),$this->getDataPath());
});

if ($this->getPlugin('manager')->isInstalled()) {
    // use path relative to __DIR__ to get correct path in update temp dir
    $this->getPlugin('manager')->includeFile(__DIR__.'/plugins/manager/install.php');
}

if (rex_string::versionCompare($this->getVersion(), '1.9', '<')) {

    $fields_removed[] = ['submits'];
    $fields_change = ['html','php','date','datetime','fieldset','time','upload', 'google_geocode', 'submit'];
    $actions_removed = ['fulltext_value', 'wrapper_value'];

    foreach($fields_removed as $field) {
        rex_sql::factory()->setQuery('delete from '.rex_yform_manager_field::table().' where type_id="value" and type_name = ?',[$field]);
    }

    foreach($fields_change as $field) {
        rex_sql::factory()->setQuery('delete from '.rex_yform_manager_field::table().' where type_id="value" and type_name = ?',[$field]);
    }

    foreach($actions_removed as $action) {
        rex_sql::factory()->setQuery('delete from '.rex_yform_manager_field::table().' where type_id="action" and type_name = ?',[$action]);
    }

}

rex_autoload::removeCache();