I have two C100's and an L120. Very reliable and solid guns. I love mine, which is why I own several.
The safety, mag release, trigger, mags, and grips are all different than the very first ones.
The safety and mag release, as noted, are like the P100.
The grips are no longer checkered and thankfully no longer have cute little dolphins on them.
The old mags were lower capacity and held 13 according to the witness holes. Mine actually loaded and reliably fired with 14 rounds though so I may have gotten some with newer base plates than bodies.
Finally, unless I just can't see it from the photos, the trigger used to be serrated up front. One of my C100's has a serrated trigger and one has a smooth trigger.
I think the newer ones are all smooth but am unsure.
In any case congrats on a great gun. I think if they warramtied them longer than a year other companies would have a serious competitor. I do think in a few years they'll be more popular and possibly more expensive because of this.