Published in 2015: American Heart Association/American Stroke Association Focused Update of the 2013 Guidelines for the Early Management of Patients With Acute Ischemic Stroke Regarding Endovascular Treatment. Available here.
It acknowledges that a stronger recommendation for the use of endovascular thrombectomy can now be made. This is based on a number of studies suggesting benefit with these treatment modalities over standard care with thrombolytics.