The bloody release has unsigned packages, and is in flux FAR MORE than its stable or LTS peers.
The OmniOS release cycle explained.
Unless specifically noted, any interim (“weekly”) release may be applied
pkg update without a reboot. See the admin page
for details on using pkg(1).
Major releases are really all that matter in terms of general support.
pkg info on packages mentioned in weekly releases to see if you
have the updated version.
To determine the major release your system is on, look at
OmniOS v11 r151014 Copyright 2015 OmniTI Computer Consulting, Inc. All rights reserved. Use is subject to license terms.
or starting with OmniOS r151018,
uname -v or
uname -a will
have it as well:
r151018(~)% uname -v omnios-r151018-ae3141d r151018(~)% uname -a SunOS r151018 5.11 omnios-r151018-ae3141d i86pc i386 i86pc r151018(~)%