Just to recap, for those interested in v4.0 on Ubuntu 18.04.1:
ubuntu@sparhawk:~$ uname -a
Linux sparhawk 4.14.54-ti-r63 #1 SMP PREEMPT Thu Jul 12 21:52:17 UTC 2018 armv7l armv7l armv7l GNU/Linux
ubuntu@sparhawk:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic
ubuntu@sparhawk:~$ pihole -v
Pi-hole version is v4.0 (Latest: v4.0)
AdminLTE version is v4.0 (Latest: v4.0)
FTL version is v4.0 (Latest: v4.0)
A big thanks to @deHakkelaar, @technicalpyro & RamSet for all the help!! You folks are awesome.
~ T