Reponses:
A) All Cisco Sensors can be upgraded to 3.0 (includes all NRS-xx and IDS-42xx models). Sensors shipped by Wheelgroup prior to the aquisition by Cisco were end of lifed prior to version 2.5 and are therefore not upgradeable to version 3.0.
For sensors running version 2.5, they will be upgradable from a CCO download.
For sensors running version 2.2.1.x, they will have to upgraded to 2.5 via CD and then upgraded to 3.0 by CCO download, or directly upgraded to 3.0 by the 3.0 CD..
B) 3.0 will use the same communication method as existing 2.5 sensors. However, the CSPM machines will have to be upgraded to v2.3.1.i and the Unix Director machines will have to be upgraded to v2.2.3. Users can expect to have all 3 released the middle of this summer.
C) No documentation is yet available to the public documenting the new features in 3.0.