Solaris 10 1/13 is here!!!!

I  was already thinking the same thing would happen with Oracle Solaris than IRIX 6.5.31 but here you are the latest release (and may be there will be no more updates):

http://www.oracle.com/technetwork/server-storage/solaris10/downloads/index.html


You can read the 'What's new' document from this link.