[OpenIndiana-discuss] Massive update -- possible big mess?

[Harry Putnam]

Setup: oi -b 151_a8 running in A vbox vm on win7 64bit host.

The OS was installed into the vbox vm some 6-8 mnths ago.

I let it set from Dec 2013 until a week or so ago.

uname:
 SunOS oi 5.11 oi_151a8 i86pc i386 i86pc Solaris

I ran the pkg manager in gui to get a good look at available updates.
By that, I see 897 pkgs that need updating... or maybe more accurate
to say 897 that have available updates.

I'm wondering if that scale of update might be a time I can expect the
likely hood of a host of problems, lots of follow up humping and
bumping or the like.

Looking at just the 450 pkgs that show up in the `system' section, I
see piles of language pkgs.  

Simce I'm pretty green running oi, I'd like to take the least
complicated approach to updating.

Is it worth while to weed out all the extraneous language pkgs? 
Is all that extra language stuff just part of a default install?

I guess, what I'm after is for someone to outline briefly what is
likely to happen if I just run the update with no pruning.