upgrade 6.6 -> 6.7

[infoomatic]

Hi,

just for info: Upgrading from 6.6 to 6.7 worked without flaws on my
OpenBSD VMs on Linux/KVM and FreeBSD/bhyve hypervisors! 6.7 feels faster
and snappier! Thanks to you all for your hard work!

Regards,

infoomatic