Do I need to update the BIOS for a new Z370 and i5-9600K?

Hello.
I am planning my first build. I read that there are some compatibility issues with the Z390 motherboads so I was looking at the Z370 (ASUS ROG STRIX Z370-E Gaming).

When this came out they supported 8th generation Intel and I understand that to work with 9th generation I have to flash the BIOS. (And I guess this applies even if I buy a new board now in 2019).

I am fine with this... except that this is my very first build, I don't have an old CPU to plug into it to first update the BIOS. Would it be possible to update it in any other way? Should I just stick to the newer Z390 and deal with the compatibility issues?

submitted by /u/CrashingBrain
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