Solaris 10 6/06 ("U2") added the ZFS filesystem. Solaris 10 11/06 ("U3") added Solaris Trusted Extensions and Logical Domains . Solaris 10 8/07 ("U4") added Samba Active Directory support, [ 50 ] IP Instances (part of the OpenSolaris Network Virtualization and Resource Control project), iSCSI Target support and Solaris Containers for