From the Platform Feature Matrix PDF that ships with the product:
Solaris 11 -- No zones
Processors Supported: SPARC, x86, AMD64, EM64T
IDS: Yes
C2 Collector: No
IDS Baseline Policy: Yes
FIM Package 1: Yes
RT-FIM: No
IPS Support: No
Process Access Control: No
Memory Controls: No
Custom IPS Policies: No
IPS Option Consistency: No
IPS Translator Package 1: No
Root Accountability Logging: No
Custom Program Children: No
So, yes, Solaris Version 11 is supported, but only IDS is available. We do not have IPS for Solaris 11 yet.