USCIS has released new forms that are commonly used in the filing of immigration cases. These include an updated Form I-539, Application to Extend/Change Nonimmigrant Status, required as of 7/6/15, and Form I-907, Request for Premium Processing Service, required as of 6/1/15. Other forms also have undergone revision, including Forms I-508 and I-508F (required as of 7/20/15), Form I-690 (required as of 8/5/15), Form I-601 (required as of 8/5/15), and Form I-693 (required as of 7/27/15).