Solaris's legendary stability, scalability and security have always been welcome and appreciated among customers, Solaris 10's additional features established its reputation even further, bringing innovation with ZFS, SMF/FMA, DTrace, zones, and the list goes on.
Solaris 10 has been released in 2005. It got regular feature updates, we are as of now at Solaris 10 update10.
And there's a lot of talk about Solaris 11, and all the invention going on in it, with IPS, the new network enhanced packaging system, Crossbow, the new network virtualization, boot environments to ease management, RBAC integration, and the list again goes on.
The question we are regularly being asked is: When will Solaris 11 be released?
And until then, have a look at the Solaris 11 Early Adopters program, to be prepared for the new technologies.