[Elecraft] K3 and KSYN3AUPG

[w5sum at comcast.net]

I ordered my K3 in February 2015 and received S/N 8958  on April 8th.  I 
understand looking at the Elecraft Website, that any K3's shipped starting 
1/23/2015, s/n 8801 and later, had the new KSYN3AUPG included. I ordered my 
K3 loaded out, with the SINGLE exception of
the 144mhz option.
So.. basically, do I understand I pretty much have a K3S?   If not, what can 
I do to upgrade? Or is it even worth the trouble?

I'm very pleased with my K3, and have worked 290 countries with it. I'm 
primarily a DX chaser, however I do work some of the contests, mainly to 
pick up country/band combo's I have yet to work

73 and God bless

Ronnie W5SUM