There's a closed pull request on the void-packages repository

zfs: update to 2.0.5.
https://github.com/void-linux/void-packages/pull/31644

Description:
Should be uneventful. Compiles on 5.10, I am about to compile and reboot on 5.12 and test with ZBM.

cc: @Vaelatern @ericonr @zdykstra (zdykstra will be testing on ppc64le, i686-musl and MIPS)