Looks like FreeBSD and most people running BSD is (are) lacking behind - "sudo pkg update && sudo pkg upgrade -y" is not bringing success - what do you recommend there?
If you did not get tor 0.2.9.9 via pkg yet you are probably using the quarterly [1] and not the latest [2] repo. (/etc/pkg/FreeBSD.conf)
'latest' has 0.2.9.9 since 2017-02-05.
[1]http://pkg.freebsd.org/FreeBSD:11:amd64/quarterly/All/tor-0.2.9.8.txz [2]http://pkg.freebsd.org/FreeBSD:11:amd64/latest/All/tor-0.2.9.9_1.txz