Version 4.2.1

Version 4.2.1 included the following changes:

Build Summary of Changes
1207 (March 2012) Support for SAN Volume Controller and Storwize® V7000 code level 6.3.0.62.
VMware ESXi 5.0 support for MS Windows Server.
Support for Storwize v7000 Unified 1.3 environment.
Support for DS8000® CIMOM version 6.2.x in code bundle 86.20.103.0.
0816 (August 2011) Pre-test snapshot to find a suitable free target volume and adjustable time length for disk rescan injection: ibmvcfg.exe tool.
Support for Hyper-V on Windows Guest operating system.
Support SAN Volume Controller microcode level 6.2.x.