Taken from telegram
New ISO and packages available now.
18.11- PRELEASE is based off of:
OS: TrueOS master as of Nov 20th, 2018
Packages: TrueOS ports as of Nov 19th, 2018
The ISO is slightly smaller than RC3 now (~4.4 GB) as TrueOS is just now starting to commit all the ISO slimming options to their build framework. I am hoping to get the ISO back down to ~3.5GB for the next release.