If you want to disabled plugin upgrade warning from admin pane than please add below wordpress hook into your functions.php file
function filter_plugin_updates( $value ) {
unset( $value->response[‘PLUGIN-DIR/MAIN-PLUGINFILE-NAME’] );
return $value;
}
add_filter( ‘site_transient_update_plugins’, ‘filter_plugin_updates’ );
EX:
function filter_plugin_updates( $value ) {
unset( $value->response[‘all-in-one-seo-pack/all_in_one_seo_pack.php’] );
return $value;
}
add_filter( ‘site_transient_update_plugins’, ‘filter_plugin_updates’ );