On July 23, 2003, SEVIS version 4.7 went into effect. A Release Notice from DHS lists the changes and improvements contained in the 4.7 release. An accompanying e-mail from the SEVIS Help Desk stated that SEVIS was out of service from 9:00 PM Eastern Time on Tuesday, July 22, 2003 until approximately 3:00 AM Eastern Time on Wednesday, July 23, 2003 for the implementation of SEVIS Release 4.7. AMDOC#: 200307011