[pca] Functionality with Patching?

[Open Source Rocks]

All, 
We are patching a whole lot of servers whose OS update varies from 2003 actual release to U1 to U4. 

I wanted to know if I patch these OSes to Dec 2008 (patchdiag.xref frozen to end of Dec 2008), will I get the same functionality as U6? Meaning capability of ZFS boot, auto-update on container move, which comes with U6? 

Please let me know. 
Thanks 

-GGR 

-- 
Rajiv G Gunja 
Blog: http://ossrocks.blogspot.com 
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