freebsd stable - Jan 2021 - Following FreeBSD 13 and RaspberryPi/aarch64

Now that FreeBSD-13 is branched, is there a way of "following" that 
branch on a Pi by upgrading from binaries instead of 
buildworld/buildkernel? I know that freebsd-update exists, but that 
can't be used AFAIK.

-- 
chs