There is one new feature in this release. This feature allows ClamAV users optionally to submit statistics to us about what they detect in the field. We will then use this data to determine what types of Malware/Viruses are the most detected in the field and in what geographic area they are.
It closes the following bugs from http://bugs.clamav.net:

684,777, 828, 832, 954, 1046, 1085, 1092, 1098, 1135, 1137, 1145, 1150 , 1154, 1155, 1157, 1158, 1160, 1162, 1165, 1174, 1179, 1181, 1184, 1185, 1186, 1187, 1189, 1192, 1196, 1197, 1199, 1201, 1203, 1204, 1205, 1210 , 1211, 1212, 1213, 1216, 1217, 1219, 1221

For more details, please refer to Whats New in 0.94.1.