Z170 with 7th gen processor?

Oct 11, 2018
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So I ordered a new motherboard. The
Z170-AR and then i found out i need a sixth gen processor to possibly get it started however i have an i-7700k. I was wondering if i absolutely have to buy a new cpu? i read on a forum on here that newer z170's come updated usually so they dont need a sixth gen to be set up, is there any merit to this also?
 

ok sweet thanks. Short on money so hopefully all goes well.
 

I'd like to find one in town but its a small town without many computer shops but the G3900 is what i heard would work. Thanks for answering!