How do I update WRT1900AC v1 Kernel?

Hi Forum collaborators,

I'm using Linknsys WRT1900AC with Kernel 4.4.92 and Firmware LEDE Reboot 17.01.4 r3560-79f57e422d / LuCI lede-17.01 branch (git-17.290.79498-d3f0685). Was wondering if/how I can update the Kernel.

Thanks a lot!

By flashing a new firmware that includes the new kernel.
Kernel can't be upgraded separately.