$ uname -a
Linux clockworkpi 4.14.2-clockworkpi-cpi3-g638f2a7 #1 SMP Mon Dec 10 07:46:56 UTC 2018 armv7l GNU/Linux
Someone mentioned that v0.3 has 4.20 kernel. But in clockworkOS v0.3 with GPU driver is available!, the about page shows the kernel is of v 4.14 in the video.