6.0.1 is tagged and available. The major reason for this update is an expired Let’s Encrypt certificate that would cause problems when downloading dpkg binaries. A list of 6.0.1 commits is available.
I recommend the usual rebuild process mentioned on the 6.0 release notes:
make buildworld make buildkernel make installkernel make installworld make upgrade
Don’t forget to update your packages with ‘pkg upgrade’.