zfs discuss - Jun 2006 - query re availability of zfs in S10

Hi
It is my understanding that zfs will be available to pre S10 update 2 
customers via patches, ie customers on FCS could install the necessary 
zfs patches and thereby start using zfs.

But there seems to be confusion in regards to whether this is supported 
or not.
Some people say only zfs on update 2 and beyond are supported others say 
that those on pre update 2 will also be supported via patches.
Could someone attempt to clarify this issue for me.

regards
Enda